Temperature Sensor
An accurate temperature sensor/transducer refers to a sensor that can sense temperature and convert it into a usable output signal. The temperature measuring transduceris the core part of the temperature measuring instrument, and there are many varieties. According to the measurement method, it can be divided into two types: contact type and non-contact type. According to the characteristics of sensor materials and electronic components, it is divided into two types: thermal resistance and thermocouple.
Introduction to Temperature Sensor
An industrial temperature sensorrefers to a sensor that can sense temperature and convert it into a usable output signal. The temperature sensor is the core part of the temperature measuring instrument, and there are many varieties. According to the measurement method, it can be divided into two types: contact type and non-contact type.
Comparison of Temperature Sensor
Thermocouple Temperature Sensor
According to the characteristics of sensor materials and electronic components, it is divided into two types: thermal resistance and thermocouple.
Thermocouple is the most commonly used temperature sensor in temperature measurement. The main advantage is that it has a wide temperature range and adapts to various atmospheric environments, and it is sturdy, low-cost, and does not require power supply. The thermocouple is composed of two different metal wires (metal A and metal B) connected at one end. When the thermocouple is heated at one end, there is a potential difference in the thermocouple circuit. The measured potential difference can be used to calculate the temperature.
In short, the thermocouple is the simplest and most versatile temperature sensor, but the thermocouple is not suitable for high-precision measurement and application.
Thermal resistance Temperature Sensor
Thermistors are made of semiconductor materials, most of which have a negative temperature coefficient, that is, the resistance decreases with increasing temperature. Temperature changes will cause large resistance changes, so it is the most sensitive temperature sensor.
Thermistors also have their own measurement techniques. The thermistor's small size is an advantage, it can be quickly stabilized without causing thermal load. However, it is also not very strong, and large currents will cause self-heating. Because the thermistor is a resistive device, any current source will cause heat on it due to power. The power is equal to the product of the current squared and the resistance. Therefore, use a small current source. If the thermistor is exposed to high heat, it will cause permanent damage. We also have high temperature ultrasonic transducerand heat transducerfor sale, welcome to consult.
Feejoy technology provide a range of different types of explosion proof transmitterincluding magnetic, Magnetostrictive, ultrasonic, radar, RF admittance, float continuous. Each of these transmitters work in different ways, making them useful for a number of different types of processes.
在线联系供应商
Other supplier products
 |
Ultrasonic Level Sensor | Feejoy Technology (ShangHai) Co., Ltd. is a professional pressure transducer manufacturers. We provide Level Transmitter, Level Switch, fluid level... |
 |
Float Level Sensor | FEEJOY Continuous Float Level Sensor is composed of float, plunger and other components. The magnetic float gauge of the float type level transmitt... |
 |
Rotary Paddle Level Switch | FEEJOY Rotary Paddle Level Switch with rotating paddle level sensoris a controller specially used for silos. The rotary paddle type level switchis ... |
 |
Standard Pressure Transmitter | FEEJOY standard flanged pressure transmitteris the most commonly used sensor in industrial production. The pressure transmitter, as a capacitance t... |
 |
Mini Float Level Switch | Feejoy Technology (ShangHai) Co., Ltd. is a professional pressure transducer manufacturers. We provide Level Transmitter, Level Switch, liquid pres... |
Same products
 |
Temperature Transmitter | 卖方: Beijing Gallop High& New Tech Co.,Ltd | Temperature transmitteradopts thermonuclear, RTD as temperature measuring element, the output sig... |
 |
Capsule Type Pressure Transmitter | 卖方: Beijing Gallop High& New Tech Co.,Ltd | To convert measured pressure values into standard industrial signals, such as 4-20mA, 0-20mA, 0-5... |
 |
Allen-Bradley PLC Module 1769-IA16 | 卖方: 840499 | Allen-Bradley PLC Module 1769-IA16 The Bulletin 1769 Compact I/O™ chassis-based modules ca... |
 |
Temperature & Humidity Transmitter | 卖方: Tinko Instrument (Suzhou) Co., Ltd. | Tinko high temperature humidity transmitterare suitable for HAVC temperature and humidity measure... |
 |
TKSD Duct Mounted Transmitter | 卖方: Tinko Instrument (Suzhou) Co., Ltd. | TKSD series temperature transmitter with displayare designed for indoor air temperature and humid... |
