What will you encounter during the use of the thermistor and

With the rapid development of science and technology, NTC thermistors have become common components in the fields of temperature measurement, temperature control, and temperature compensation. pt500 temperature sensor, NTC thermistor is made of manganese, cobalt, nickel, copper and other metal oxides as the main materials, using ceramic technology.
1. How to judge the thermal error of your temperature sensor
1. With the sensor connected to the computer, measure and record on the sensor (E)
2. Record the time of the voltage reading of the temperature sensor reading.
3. Using the thermistor temperature/resistance chart, record the resistance (R) of the temperature sensor measured above
4. Record the heat dissipation coefficient for your sensor. [Typical bead sensor (K) = 1 mW/°C]
5. Calculate the power generated by your sensor: P = E2 / R
6. Calculate the temperature reading error:
Error = power generation (P) / sensor dissipation factor (K)
E.g:
o bead sensor (heat dissipation coefficient = 1 mW/°C) voltage measurement = 2.5V
o Room temperature = 25°C (77°F)
o Sensor resistance at 25°C (77°F) = 10000 ohms
o Power generation = E2 / R = 2.52 / 10,000 = 0.625 milliwatts
o Thermal error = P / K = 0.625 mW / 1 mW / °C = 0.625°C
In this example, the bead sensor will read a high temperature of 0.625°C or in °F, 1.8×0.625 = 1.13°F.
2. What should I pay attention to when using NTC thermistor? How to avoid damage to NTC thermistor? Next, we invite the technicians of Fuwen Sensing to explain it for us, and hope it will be helpful to everyone.
(1) The use of NTC thermistor is different; the design of NTC thermistor is also different;
(2) When designing the product, the NTC thermistor should be tested for trial assembly and evaluation, and it can be used only after there is no abnormality;
(3) NTC thermistor cannot be used under high power;
(4) NTC thermistor's self-heating will cause the resistance value to drop, so the temperature detection accuracy will be reduced. Pay attention to the external voltage and power of the NTC thermistor;
(5) Please use NTC thermistor within the specified temperature range;
(6) Do not use repeatedly in different temperature ranges of high and low temperature;
(7) When the NTC temperature sensor is used in a high temperature environment, high temperature resin glue and high temperature guide should be used;
(8) Please handle the thermistor gently to avoid excessive vibration, impact and extrusion;
(9) Do not pull the wire and potting port excessively;
(10) Prevent the thermistor from being used in water and humid places. Otherwise, water infiltration may occur and the resistance value may drift;
(11) The connection of the terminal hole seat at the end of the temperature sensor is ensured to be firm, and do not use it in places such as "water", "steam", "electrolyte", etc., to avoid poor contact;
Please be sure to comply with the above NTC and temperature sensor notes