What are the common temperature sensors on the market?

Temperature sensors monitor changes in a material or object as its temperature changes. The temperature sensor can detect changes in physical quantities that correspond to temperature changes. A physical quantity can be something like resistance or voltage. Sensors based on electrical energy to thermal energy use the thermal effect of electric current through a conductor. Thermally-electrically based sensors require a temperature difference to function.

How does a temperature sensor work?

What are the classifications of temperature sensors?

What are the common temperature sensors on the market?

How does a temperature sensor work?

From the perspective of the microstructure of the temperature sensor, the kinetic energy of the molecule increases as the temperature of the object increases, and the mean free path length of the molecule increases so that it appears as thermal expansion; Similarly, the kinetic energy of the molecule decreases as the temperature of the object decreases, and the average molecular weight. The free path length is reduced so that this is indicated as cold shrinkage. This is the true reason for thermal expansion and contraction and how a thermometer works.

What are the classifications of temperature sensors?

⒈ Depending on the physical size of the temperature sensor, it can be divided into displacement, force, velocity, temperature, flow, gas composition and other sensors

⒉ According to the working principle of temperature sensor, it can be divided into resistance, capacitance, inductance, voltage, Hall, photoelectric, lattice, thermocouple and other sensors.

3. According to the type of sensor output signal, it can be divided into switching sensor, the output of which is the switching quantity ("1" and "0" or "on" and "off"); output is analog sensor; Output is pulse or code digital sensor.

What are the common temperature sensors on the market?

Frequently used temperature sensor types are bimetal, PTC, KTY84 and Pt100, other types include NTC and PT1000, etc.

1. The bimetal temperature sensor consists of two sheets welded together with different thermal expansion coefficients. When temperature changes occur, the two sheets produce different deformations. When the response temperature is reached, the two states switch on and off.;

2. The PTC temperature sensor is a semiconductor resistor with positive temperature coefficient. It is installed in the stand groove or at the end of the winding to monitor the winding temperature and marked by the response temperature;

3. The temperature sensor KTY84 is a semiconductor resistor with positive temperature coefficient. If the reference temperature is 100° the resistance is about 1000 Ohm and the maximum permissible measuring current is 2 mA.

T Sensor Tech is a manufacturer of temperature sensors with complete teams from research and development, design, production to sales. The main products are temperature sensors for air, solids and liquids, including food temperature sensors, NTC temperature sensors, Pt100°Pt1000 temperature sensors, thermocouple temperature sensors, etc. T Sensor Tech has built 2 standard test laboratories and trained more than 20 research staff, established 2 production facilities and developed more than 60 product types. T Sensor Tech focuses on innovation and the growth rate of R&D input in the last three years is over 60%. We do our best to be a more professional, reliable manufacturer of temperature sensors.