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EXSENSE customizes silver / gold electrode NTC chip die, high precision / high temperature NTC thermistor & waterproof / fast response temperature sensor. Application: new energy vehicles / smart home / GSM / OA / medical electronic, infrared thermal / thermal printer head / laser printer & copier / IGBT / optical communication devices / smart toilet / coffee maker / medical device.
    EXSENSE Electronics Technology Co.,Ltd.is specialized in a variety of NTC thermistor NTC temperature sensor devices and related materials research, production, development and sale of private high-tech enterprises.Companies in the industry rely on a strong collaborative capabilities, to provide customers with a variety of electronic components supporting services.
    The use of advanced semiconductor manufacturing process combined with independent intellectual property rights of the NTC temperature sensor, NTC thermistor materials and process technology, through Japan, Taiwan, Germany, imported high-precision materials processing, slicing, packaging and testing equipment, we achieved an NTC thermistor NTC resistor temperature sensor devices and high-precision volume manufacturing. At the same time, through innovative management, strengthening quality control, we ensure the continuous production of products with high stability, high reliability. At this stage of the main species produced include: AT Series-- High Precision Dip NTC ThermistorLT Series-Small Size High Precision Dip NTC Thermistor BT Series–Battery Series High Precision NTC ThermistorDT Series—Die (Bare chip)NTC ThermistorIT Series—Electronic Thermometer Series High Precision NTC ThermistorCT Series–Chip Type NTC ThermistorFT Series–Film Type NTC ThermistorGT Series–Glass Sealed NTC ThermistorPT Series–Power Type NTC ThermistorTS Series–NTC Temperature sensor
    The Company in the NTC temperature sensor, NTC thermistors, temperature sensitive components and materials have a number of innovative and independent intellectual property rights, we have continued to strengthen its own R & D capability has been maintained at the same time with the advanced international counterparts in the field close cooperation, and strive to provide customers with the most advanced technology of international standard products and the most internationally competitive quality and service!
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Difference Between Thermocouple and Thermistor


 
Thermocouple vs Thermistor 
Thermocouples and thermistors are two types of instruments that are used to detect and measure temperatures. Thermocouple is mainly used as a temperature measuring device coupled with a voltmeter or a cathode ray oscilloscope. The thermistor is a single circuit element which changes it’s resistance in response to temperature. Both of these components are very important in measuring and regulating temperatures of systems. Thermocouples and thermistors are widely used in a large number of fields in physics and instrumentation. It is vital to have a proper understanding in thermocouples and thermistors in order to excel in such fields. In this article, we are going to discuss what thermocouple and thermistor are, their applications, the operational theories behind thermocouple and thermistor, their similarities, and finally the difference between thermocouple and thermistor.
 
Thermocouple
A thermocouple is one of the most important apparatus used in temperature measurements. The thermocouple consists of a junction of two dissimilar metals.  When such a junction is exposed to heat, the junction produces a voltage. This voltage is measured across the junction. A modified version of the thermocouple is produced by placing a different metal wire between two parts of another metal. This produces two junctions. One junction is kept at a reference temperature such as water which is in contact with ice (reference temperature for 0 ). This variation of the thermocouple can directly measure the temperature difference between the reference temperature and the given temperature. The thermocouple absorbs almost no heat from the measuring point, and the sensitivity of the thermocouple is relatively low compared to other measuring methods, but it has a very large measurement range.  The thermocouple operates based on the Zeebeck effect.
 
Thermistor
The thermistor is a type of resistor. The term thermistor comes from “thermal” and  “resistor”. The thermistor changes it’s resistance in response to the operating temperature of the device. There are two basic types of thermistors. Positive temperature coefficient (PTC) thermistors increase their internal resistance in response to a temperature increment. Negative temperature coefficient (NTC) thermistors reduce their internal resistance in response to a temperature increment.
 
PTC thermistors are widely used in applications such as fuses and temperature control systems.  Thermistors can usually operate in the temperature range from -90℃to 130℃. The material used in thermistors is a polymer or a ceramic that has temperature – resistance properties, which are suitable for a thermistor. NTC thermistors are usually used in low temperature measurement systems and other systems that require to maintain a lower temperature threshold.
 
What is the difference between thermistor and thermocouple?
·         A thermocouple produces a voltage corresponding to the temperature gradient whereas the thermistor produces a resistance corresponding to the temperature.
·         The thermistor requires an external voltage to operate as a measuring device, but the thermocouple only requires a measuring system such as a voltmeter to measure the output voltage.
·         The thermistor has a small range, but a high accuracy whereas the thermocouple has a large range and a low accuracy.
 
EXSENSE Electronics Technology Co., Ltd.
 

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