Thermistor temperature calculator. Calculate NTC thermistor resistance at a target temperature.

Thermistor temperature calculator Explanation Calculation Example: Thermistors are temperature-dependent This NTC thermistor beta calculator calculates the beta (β) value of the NTC thermistor based on two points of resistances of the thermistor with their corresponding temperatures. 1 for Laser Diode and TEC Controllers by Stanford Research Systems Inc Please input resistance-temperature pairs: (Don't use the Enter key) The Calculator Workflow To find the temperature, start by measuring the resistance of your thermistor with a multimeter. Find out how! Findings In this experiment, we measured the temperature under the following scenarios: room temperature, surrounding the thermistor with a bag of ice, and grasping it while blowing hot breath on it. The first step is to Definition: This calculator determines the resistance of an NTC (Negative Temperature Coefficient) thermistor at a given temperature, using the thermistor's nominal resistance, reference temperature, and beta value. To use them, we need to know how to calculate a temperature value out of the measured resistance. docTemperature vs Resistance Conversion Chart for 10k Thermistors Nov 12, 2025 · Enter the resistance at two different temperatures into the calculator to determine the B value, a parameter that characterizes the temperature dependence of the resistance of a thermistor. $$r_ {\infty} = R_ {25} \cdot exp \left (\frac {-B} {T_ {25}}\right)$$ Calculate the thermistor resistance from Oct 2, 2024 · Calculation Example: A thermistor is a type of resistor whose resistance changes with temperature. This calculator simplifies the process of converting between temperature and Resistance thermometer calculator for PT100 & PT1000 Are you looking for a reliable and accurate tool to calculate the temperature and resistance values of your PT100 and PT1000 resistance thermometers? Therma GmbH presents an intuitive, easy-to-use calculator that will exceed your needs. The Steinhart-Hart equation is a mathematical model for these thermistors that seems to fit for a wide range of temperatures with high precision. Beta Value (\ ( \beta \)): A constant used to describe the temperature-resistance relationship of a thermistor. We would like to show you a description here but the site won’t allow us. NTC Thermistors provide stable, precise temperature readings, making them ideal for systems that demand reliability and quick response. Oct 5, 2024 · Thermistor Temperature Calculation Formulas 05 Oct 2024 Tags: Calculations Concepts User questions thermistor resistance to temperature calculator Popularity: ⭐⭐⭐ Thermistor Resistance to Temperature Calculator This calculator provides the calculation of temperature based on thermistor resistance and B value. Control Beta Value Calculator - The approximate relationship between the resistance and temperature for a NTC thermistor. Aug 18, 2020 · This article explains how to use an NTC or a PTC thermistor with an ADC, along with the various process techniques to convert ADC measured results into a usable temperature value. If you have a random thermistor (like a random Engine Coolant Temperature (ECT) sensor or a random Intake Air Temperature (IAT) sensor), you can calculate the coefficients for the Steinhart-Hart Equation, which provides excellent curve fitting, based on three meaurments: low temperature, mid-range temperature and high temperature. The Steinhart-Hart equation provides a more accurate model, but this approximation is sufficient for many applications. Oct 13, 2024 · Thermistor Resistance Calculation 13 Oct 2024 Tags: N/A Electronics N/A Thermistor to Temperature Calculations Popularity: ⭐⭐⭐ Thermistor to Temperature Conversion This calculator provides the calculation of thermistor resistance at a given temperature. What is an NTC Thermistor Calculator? NTC (Negative Temperature Aug 21, 2017 · The temperature coefficient of a thermistor is used when calculating its tolerance in terms of temperature. The relationship between resistance and temperature is given by the Steinhart-Hart equation: 1 / T = A + B * ln (R) + C * ln (R)^3, where T is the temperature in Kelvin, R is the resistance in ohms, and A, B, and C are constants. The formula used in this calculator is based on the relationship between resistance, temperature, and TCR. The component provides API functions that use the generated coefficients to return Use this PT100 Calculator to calculate temperature and resistance values from the standard PT100 curves. Their main characteristic is that their resistance varies as a function of temperature: the hotter, the less resistance. As a recap, here is the circuit we wil Oct 25, 2024 · The Temperature Coefficient is crucial in NTC Thermistors, where resistance drops as temperature rises. The component provides API functions that use the generated Sep 14, 2020 · NTCs are often used as temperature sensors. Jul 18, 2022 · Characterise the NTC thermistor using the Beta method. Subtract 273. Thermistors are temperature-sensitive resistors commonly used in electronic circuits for temperature sensing, control, and compensation. The temperature coefficient of a thermistor is defined as the relative change in resistance referred to the change in temperature. Temperature Measurement with NTC Thermistors In the last tutorial we looked at different thermistor types and their applications. It provides a more accurate temperature calculation than simpler models, especially over a wide temperature range. Steinhart-Hart Thermistor Calculator Thermistor resistance is related to temperature in degrees Kelvin by the following formula: 1 T = A + B ln (R R t) + C ln 2 (R R t) + D ln 3 (R R t) In the standard Steinhart-Hart equation, the C parameter is typically set to zero. The component is adaptable to most NTC thermistors. It provides a more accurate temperature calculation than the simpler Beta value method, especially over a wide temperature range. So this calculator needs 2 different, distinct resistance values along with their corresponding temperatures to be able to calculate the beta value of the thermistor. A thermistor's “b” value, or beta value, is an indication of the shape of the curve representing the relationship between resistance and temperature of an NTC thermistor It’s time to take the mystery out of Thermistor Beta Calculations. Home > Conversion Calculators > Thermistor Calculators Steinhart-Hart Thermistor Calculator Steinhart-Hart Calculator: This allows users to input resistance and coefficients (A, B, C) to calculate the temperature using the Steinhart-Hart equation. 1 Resistance value The R/T characteristics tabulated in the following have been standardized for the resistance value at 25 C. With this app, you can easily convert between resistance and temperature using two common models: the Beta model and the Steinhart-Hart model. In this article, we will explore various practical examples where NTC thermistors are utilized for temperature measurement, thermal compensation, and voltage regulation. Welcome to our comprehensive guide on NTC (Negative Temperature Coefficient) thermistor calculation examples. Manufacturers may provide typical values of the A, B, and C coefficients, or you can calibrate these values for better accuracy. Simplify your NTC thermistor calculations and improve efficiency Oct 1, 2025 · Enter the measured resistance, temperature (°C), and beta value into the calculator—leaving one field empty—to determine the missing parameter. The Steinhart-Hart equation is commonly used to calculate the temperature of a thermistor based on its resistance. Nov 11, 2024 · Use the B Value Calculator to determine the thermistor constant based on temperature and resistance. 2% of the total difference between its initial and final body temperature when subjected to a step function change in temperature, under zero power conditions. In this installment, we will discuss the code used to run the circuit. 1 Abstract The project offers support for NTC thermistor calculations. Temperature Sensing: Enables the use of the beta equation to predict resistance or temperature in temperature-sensing applications. You’ll need this value in order to calculate the temperature of the thermistor. Jun 28, 2024 · Popularity: ⭐⭐⭐ Thermistor Resistance Calculator This calculator provides the calculation of thermistor resistance at a given temperature using the Steinhart-Hart equation. Calculate NTC thermistor resistance at a target temperature. Q: What is the Beta value of a thermistor? The Thermistor The Thermistor is a solid state temperature sensing device which acts a bit like an electrical resistor but is temperature sensitive. The equation relates the resistance of the thermistor to the temperature, taking into account the material constant (B-value). Explanation Calculation Example: Thermistors are resistors whose resistance changes with temperature. This equation relates the resistance (R) to the temperature (T) using three parameters: Oct 26, 2024 · Discover how Steinhart Hart equation advances NTC thermistor applications, enhancing resistance and temperature accuracy for your solutions. NTC Thermistor: The Steinhart and Hart equation is the best mathematical expression for resistance temperature relationship of NTC thermistors and NTC probe assemblies. It is given by the formula RT = R * e^ (-B * (1/T - 1/T0)), where RT is the resistance at temperature T, R is the resistance at a reference temperature T0, and B is the thermistor’s material constant. Aug 4, 2021 · We can use this to calculate the temperature given the resistance of our thermistor: In practice, you will probably convert the thermistor resistance to a voltage using a voltage divider as shown in Figure 2. It is made of metallic oxides, pressed into a bead, disk, or cylindrical shape and then encapsulated with an impermeable material such as epoxy or glass. The calculator will produce a temperature value from an entered resistance or calculate resistance and thermometer sensitivity values from an entered temperature. An NTC (Negative Temperature Coefficient) thermistor is a type of resistor whose resistance decreases as its temperature increases. The Thermistor calculator returns the resistance at an end temperature based on the base temperature and resistance, an operating temperature and thermistor B coefficient. This calculator uses the formula R30 = R20 * (1 + TCR * (T2 - T1)) to calculate the resistance at 30°C. For example, using YSI, US Sensors Curve J thermistors, and Murata NTC thermistors. This calculator is able to calculate the output temperature according to the fomrula shown above, where the beta value of the NTC thermistor is needed, the temperature of the nominal resistance of the NTC thermistor is needed (normally 25°C or 298. 15°K), T 0, the nominal resistance of the thermistor, R 0, the resistance of the fixed resistor May 2, 2025 · Calculated values A thermistor has a resistance of 2500 Ω at 25°C and 5000 Ω at 75°C. Note that the temperatures are converted to Kelvin (T + 273. Explanation Calculation Example: A thermistor is a type of resistor whose resistance changes with temperature. If you have a random thermistor (like a random Engine Coolant Temperature (ECT) sensor or a random Intake Air Temperature (IAT) sensor), you can Jan 2, 2025 · Beta Value calculator This is a quick calculator to find the beta value for a thermistor . Learn how resistance changes with temperature, explore formulas, charts, and design circuits where Vout increases or decreases. calculation Definition: This calculator determines the resistance of an NTC (Negative Temperature Coefficient) thermistor at a given temperature, using the thermistor's nominal resistance, reference temperature, and beta value. Jan 8, 2011 · I have a TTC103 NTC thermistor. This guide will show you how to calculate their temperature accurately. You can also enter the parameters of your thermistor and see how it behaves under different conditions. The Mar 7, 2025 · Sensitivity Calculation Example: Thermistor sensitivity is a measure of how much the resistance of a thermistor changes for a given change in temperature. The actual resistance values of a particular NTC thermistor are obtained by multiplying the ratio RT/R25 (tabulated value) by the resistance value at 25 C (specified in the data sheets). With Ametherm's Temperature Coefficient (Alpha) Calculator, designers can determine the tolerance at any temperature for any given beta value. 2% change in temperature NTC Thermistor Tools - Table Generator, Beta Calculator, ADC Value to Temperature, Linear Approximation and Standard "Beta" Approximation Oct 4, 2024 · Thermistor Resistance Calculation 04 Oct 2024 Tags: Calculations Concepts User questions thermistor calculator Popularity: ⭐⭐⭐ Thermistor Resistance Calculator This calculator provides the calculation of thermistor resistance at a given temperature. This guide provides an in-depth explanation of the B value, its significance, and how to calculate it using real-world examples. How do I use it to measure temperature? Jun 19, 2022 · TMP6 linear thermistors, like other traditional negative temperature coefficient (NTC) or positive temperature coefficient (PTC) thermistors on the market, require resistance-to-temperature conversion tables to use them within a system. Mar 23, 2025 · Thermistor: A temperature-sensitive resistor whose resistance decreases exponentially as temperature increases. Understanding the B-value of a thermistor is key to achieving accurate temperature measurements and selecting the right Mar 8, 2025 · Explanation Thermistor Resistance Calculation: This calculator uses a simplified form of the Steinhart-Hart equation to determine the resistance (RT) of a thermistor at a specific temperature (T). Software to calculate the characteristic Steinhart-Hart coefficients based on temperature-resistance tables for given thermistors as well as functions allowing conversion of 3. Apr 13, 2025 · Explanation Steinhart-Hart Equation: The Steinhart-Hart equation is a widely used empirical model for relating the resistance of a thermistor to its temperature. The B value, also known as the “beta value” or “B coefficient”, of the thermistor gives you insight into how the resistance changes with temperature. This is because it creates a change in its electrical properties due to an external and physical Aug 9, 2017 · How to calculate temperature through NTC thermistor without its datasheet? Ask Question Asked 8 years, 3 months ago Modified 5 years, 2 months ago Introduction Negative temperature coefficient resistors (NTCs) or thermistors are widely used as temperature sensors and as inrush current limiters in a variety of applications. Mar 24, 2025 · A: The Steinhart-Hart equation is an empirical relationship used to model the resistance of thermistors as a function of temperature. Voltage divider calculator for NTC thermistors. We use the 4-term Steinhart-Hart equation which is superior to the more common 3-term Steinhart-Hart equation. This guide explores Negative Temperature Coefficient thermistors, beta values, and effective use of an NTC calculator. The easiest way to calculate the temperature coefficient is by using the below equation: Mar 1, 2025 · Thermistor Resistance Calculation: The formula used is a simplified form of the Steinhart-Hart equation, which accurately models the resistance-temperature relationship of thermistors over a wide range. That is, the change in resistance for a given change in View the TI BQ769X2-THERMISTOR-COEFF-CALCULATOR Application software & framework downloads, description, features and supporting documentation and start designing. How to use the thermistor calculator Thermistor is an electronic temperature sensing device whose resistance changes with relative changes in temperature. May 22, 2016 · Calculator: Value This uses a linear interpolation on the manufacturer's data to find the resistance or temperature. Nov 29, 2024 · What Is The B-Value Of Ntc Thermistor Thermistor B-value is a key parameter that affects the performance of NTC thermistors. In this article, we will explain what NTC thermistors are and how the beta value calculator works, followed by step-by-step instructions on how to use it effectively. Food temperature monitoring in commercial kitchens And many more! Calculation of NTC Thermistor Resistance To accurately calculate the resistance of an NTC thermistor at a given temperature, we need to utilize the Steinhart-Hart equation. R is the thermistor resistance (Ω). Using the formula R = R0 × (1 αT), where R is the resistance in ohms, R0 is the reference resistance (at 25°C), T is the temperature in degrees Celsius, and α is the temperature coefficient per degree Celsius, calculate the actual temperature if the measured resistance is 3750 Ω. It has zero-power resistance of 10 kΩ at 25°C and B25/50 value of 4050. Enter T1, T2, R1, and R2 for accurate B value results. However, some manufacturers use all 4 coefficients. About this calculator This calculator computes the resistance R 1 R1 of an NTC thermistor at a target temperature T 1 T 1 based on the formula What is the NTC Thermistor Temperature Calculator? Definition: This calculator determines the temperature corresponding to a measured resistance of an NTC (Negative Temperature Coefficient) thermistor, using the thermistor's nominal resistance, reference temperature, and beta value. Efficiently calibrate and calculate temperature from thermistor resistance and A/D readings in digital thermometers or microcontroller based instruments by minimizing the number of calculations and using polynomial and rational polynomial curve fits. Steinhart-Hart Equation: A mathematical model describing the relationship between resistance and temperature for thermistors. There are two types of thermistors: Negative Where Rt ‐‐‐ the thermistor resistance ( ) at temperature T (Kelvin); A, B, C ‐‐‐ the thermistor’s constants. The term is a combination of “thermal” and “resistor”. The TMP6 thermistor design tool offers these tables in addition to helpful tools for completing a system design. The component provides API functions that use the generated Findings In this experiment, we measured the temperature under the following scenarios: room temperature, surrounding the thermistor with a bag of ice, and grasping it while blowing hot breath on it. In our NTC thermistor equation calculator, you can simply enter the resistance value at a known temperature, along with the corresponding calibration coefficients, and obtain the equation for your specific NTC thermistor. Sep 8, 2024 · NTC Thermistor Beta Calculator Resistance 1 (R1) in ohms: Temperature 1 (T1) in °C: Resistance 2 (R2) in ohms: Temperature 2 (T2) in °C: Calculate Beta Calculating the NTC (Negative Temperature Coefficient) beta value is key for precise temperature sensing. Calibrating the curve of resistance vs temperature simplified. The Beta value, resistance-temperature ratio, and NTC value of a thermistor is also discussed. Temperature Calculation Results Enter your parameters and click "Calculate" to see results here. Oct 20, 2024 · Thermistor-Temperature-Kelvin Conversion 20 Oct 2024 Tags: Electronics Electronic Devices and Circuits Semiconductor Devices Thermistor applications calculation Popularity: ⭐⭐⭐ Thermistor Temperature Calculation This calculator provides the calculation of temperature in Kelvin using thermistor resistance values. 1. Explanation Calculation Example: A thermistor is a type of resistor whose T2 R2 Units: Celcius Fahrenheit Beta Temperature Calculator from Beta 1/T = 1/T0 + ln (R/R0)/Beta Beta T0 R0 R WELCOME TO THE NTC THERMISTOR CURVE COMPUTATION PROGRAMS OF VISHAY If you want to compute a resistance temperature curve for a well defined Vishay NTC thermistor part number, you can use our online NTC RT Calculation Tool with options to have a pdf print-out or a csv export file of the selected part number. Then enter this value along with the reference resistance, its reference temperature, and the \ (\beta\) constant from the datasheet. Online tool to calculate the relationship between temperature and resistance value for any validated Vishay NTC Thermistor SAP part or ordering code. We provide with explanation an Excel calculator to determine the temperature of an NTC thermistor given it's resistance. It is a material constant (thermal index) and can be calculated by measuring the resistance of an NTC temperature sensor at 25°C and 50°C (or 85°C). In temperature sensing and control, the NTC thermistor calculator is an invaluable tool. The last three fields (Thermistor Value at Temperature The Thermistor Calculator component calculates the temperature based on a provided voltage measured from a thermistor. Here, R20 is the resistance at 20°C, TCR is the Temperature Coefficient of Resistance, and T1 and T2 are the initial and final temperatures respectively. By putting the NTC thermistor in the upper part of the divider we get a voltage that increases with temperature as shown in Figure 3. The equation accounts for the thermistor’s initial resistance (R0) at a known temperature (T0) and its beta value (B). The thermistor parameters are listed first for reference; if you aren't getting consistent/updated results, check that the values are within these ranges. In the calculator below, you can specify whether to Dec 7, 2024 · Calculation Example: This calculator utilizes the Steinhart-Hart equation to determine the temperature in Celsius (°C) based on the resistance of a thermistor. If unsure on what R1 T1 etc are then go to the bottom of the page that demonstrates the formula and where to find the values in the datasheet. Microsoft Word - DTC-ES-1 Manual. It's vital for electronic devices, industrial automation, and healthcare equipment. Thermistors can be used to produce an analogue output voltage with variations in ambient temperature and as such can be referred to as a transducer. Indeed, the thermistor’s resistance is inversely related to temperature. Figure 2 shows the response of a NTC thermistor between -40°C and 60°C. This change is characterized by the temperature coefficient of resistance (TCR). The data shown in table format is based on a program that calculates the Resistance versus Temperature characteristics, the Resistance tolerances, the Temperature tolerances or accuracy and temperature coefficients or alfa values for Vishay’s NTC thermistors. Introduction A negative temperature coeficient (NTC) thermistor is a two terminal solid state electronic component that exhibits a large, predictable change in resistance corresponding to changes in absolute body temperature. From the figure, you can see that thermistors have high sensitivity. In this tutorial we will take a look at how we can acquire a temperature value using a NTC thermistor. The Steinhart-Hart equation is a commonly used empirical equation that describes the relationship between the The NTC (Negative Temperature Coefficient) Thermometer Temperature Calculation estimates temperature from the resistance of an NTC thermistor using the beta parameter equation. . Explanation Calculation Example: Thermistors are temperature-dependent resistors whose resistance changes with temperature. What is a thermistor? A thermistor is a resistance thermometer, or a resistor whose resistance is dependent on temperature. Nov 22, 2024 · NTC thermistor Beta Constant Value Calculation uses a two-point calibration to calculate the resistance vs the temperature curve and take into consideration the required resistance at both temperature points. The name comes from the other two words NTC R/T Calculation 5. The calculator performs the logarithm and division, outputting the result in Celsius. Nov 1, 2023 · R T0 is the resistance of the thermistor at the reference temperature (which is commonly 25°C). Thermistor Curves Calculator Thermistor Chart Low End of the Span Enter the Low end of the Span in Degree F 1. Related Questions Q: What is a thermistor and how does it Aug 30, 2024 · NTC Thermistor Temperature Calculator Calculate Temperature NTC thermistors are key in electronic temperature measurement. Defense R – T (Resistance vs. It calculates the Steinhart-Hart equation coefficients based on the temperature range and corresponding user-provided reference resistances. Dec 3, 2019 · Introduction In Part 1 of this series we discussed building a circuit to read the temperature of an NTC thermistor using an Arduino Nano or Uno to an accuracy of ±1 °C from 0 °C to 70 °C. This NTC calculation help engineers and technicians accurately determine resistance values at various temperatures. A higher sensitivity value indicates that the thermistor is more responsive to temperature variations. Feb 11, 2025 · Learn how to use an NTC thermistor calculator for accurate resistance and temperature calculations. Because there are three unknowns, calibration consists of measuring the thermistor resistance at 3 temperatures and solving the linear system shown in Equation 2. The thermistor resistance at where A, B, C are calibration parameters. Made from semiconductor materials, NTC thermistors are highly sensitive to temperature changes, making them ideal for precise temperature measurement, control, and compensation in electronic circuits. 15) for accurate Oct 6, 2024 · Calculation Example: The Steinhart-Hart equation is used to calculate the resistance of a thermistor at a given temperature. This change in body temperature of the thermistor can be brought about either externally via a change in ambient temperature or internally by heat resulting from current The thermal time constant calculator calculates the time in seconds it takes for a thermistor to change 63. R/T characteristics can be individually calculated and manipulated by adjusting the temperature range and the resistance tolerance and selecting the desired temperature intervals. Steinhart-Hart Thermistor Calculator Steinhart-Hart Temperature Calculator Thermistor resistance is related to temperature in degrees Kelvin by the following formula: 1/T= A + B*ln (R/Rt) + C*ln (R/Rt) 2 + D*ln (R/Rt) 3 In the standard Steinhart-Hart equation the C parameter is set to zero. Also, note that the response of this thermal resistor is not linear. Thermistor Calculator The Thermistor Calculator is a specialized tool designed to help users determine the resistance of a thermistor at a given temperature, or vice versa. Dec 28, 2024 · This calculator estimates the current through a thermistor at a given temperature using an approximation of the Steinhart-Hart equation. So basically the thermal time constant is the amount of time it takes for a thermistor to register a 63. A thermistor’s “b” value, or beta value, is an indication of the shape of the curve representing the relationship between resistance and temperature of an NTC thermistor. Figure 1: Thermistor resistance changes with temperature. 15 to convert Kelvin to Celsius. Mar 25, 2025 · Understanding the B value of a thermistor is essential for accurate temperature sensing and control in various applications, such as HVAC systems, medical devices, and automotive electronics. Oct 7, 2024 · Explanation Calculation Example: The resistance of a thermistor changes with temperature. Welcome to our NTC thermistor beta value calculator, a useful tool designed to help you accurately calculate temperature measurements using NTC thermistors. A small change in temperature causes a large change in resistance. R 1 and V ref are inputs which affect only the value of V o. Oct 20, 2024 · Calculation Example: Thermistors are temperature-sensitive resistors whose resistance changes with temperature. Thermistor R/T Calculators Please Choose A Calculator Calculators for Temperature & Thermistor Applications Beta Value Calculator - The approximate relationship between the resistance and temperature for a NTC thermistor. It's perfect for hobbyists, engineers, and technicians looking to use NTC thermistors in their projects. Thermistor Calculator V1. A handy tool for anyone who works with thermistors. T is the thermistor temperature (K). General Description The Thermistor Calculator component calculates the temperature based on a provided voltage measured from a thermistor. Importance of Beta Value Calculation Calculating the beta value is essential for: Thermistor Characterization: Determines the thermistor's temperature sensitivity for accurate modeling in circuits. Accurate calculation of temperature coefficients is essential for dependable thermistor performance in HVAC, automotive, and medical applications. 0 - Web-based Application The web-based tool allows calculation of the resistance/temperature characteristics of EPCOS NTC thermistors. dowu kpl wwuk wyl zvcbur fsr yyhofrmfz iupabeng dnchw gjtn jefhoq ytlj jpnvsq xextq cbwnrp