## How do you use the Steinhart Hart equation?

The Steinhart‐Hart coefficients A, B, and C can be obtained by solving the above equations and we get: A=1.1384×10‐3, B=2.3245×10‐4, C=9.489×10‐8. LDC500 series use these three coefficients to convert resistance into temperature if Steinhart‐ Hart model is selected.

### What was the purpose of Steinhart Hart equation?

The equation is often used to derive a precise temperature of a thermistor, since it provides a closer approximation to actual temperature than simpler equations, and is useful over the entire working temperature range of the sensor. Steinhart–Hart coefficients are usually published by thermistor manufacturers.

**What is the Steinhart equation?**

The Steinhart and Hart equation is an empirical expression that has been determined to be the best mathematical expression for the resistance – temperature relationship of a negative temperature coefficient thermistor. It is usually found explicit in T where T is expressed in degrees Kelvin.

**How do you find the temperature of a thermistor?**

The Steinhart-Hart equation is: 1/T = A + B(lnR) + C(lnR)2 + D(lnR)3 + E(lnR)4… A, B, C, D, and E are the Steinhart-Hart coefficients that vary depending on the type of thermistor used and the range of temperature being detected.

## How do you read the thermistor value?

Usually expressed in percent (e.g. 1%, 10%, etc). For example, if the specified resistance at 25°C for a thermistor with 10% tolerance is 10,000 ohms then the measured resistance at that temperature can range from 9,000 ohms to 11000 ohms.

### How do you read a thermistor value?

Thermistor Specifications Usually expressed in percent (e.g. 1%, 10%, etc). For example, if the specified resistance at 25°C for a thermistor with 10% tolerance is 10,000 ohms then the measured resistance at that temperature can range from 9,000 ohms to 11000 ohms.

**How are Steinhart Hart coefficients calculated?**

The Steinhart-Hart coefficients A, B, and C can be obtained by solving the above matrix equation: A = 1.1384×10-3, B=2.3245×10-4, C=9.489×10-8. The LDC501 uses these three coefficients to convert resistance into temperature. Use a standard meter to measure your sensor resistances and temperatures.

**How do you know if a thermistor is bad?**

Look for signs of a faulty thermistor. A steady reading that does not change, a reading of zero or a reading of infinity are all indications that the thermistor needs to be replaced. The change in reading will not be smooth or there will not be any change.