thermal resistorComposition structure

The temperature sensing elements of the metal thermistor have a cross framework structure of quartz sleeve, a rod structure of Fried Dough Twists framework structure, etc. There are many types of temperature sensing materials commonly used in metal thermistors, with platinum wire being the most commonly used. In addition to platinum wire, metal thermistor materials for industrial measurement also include copper, nickel, iron, and iron nickel

Tungsten, silver, etc. Thin film thermistor is manufactured using electron cathode sputtering method, which can achieve industrial mass production. The skeleton is made of ceramic, and the leads are made of platinum palladium alloy.

thermal resistorRaw materials for production

Thermistor temperature measurement is based on the characteristic that the resistance value of metal conductors increases with temperature. Thermistors are mostly made of pure metal materials, with platinum and copper being the most commonly used. In addition, materials such as nickel, manganese, and rhodium have begun to be used to manufacture thermistors.

thermal resistorCharacteristics

·Pressure spring type temperature sensing element with good anti vibration performance;

·High temperature measurement accuracy;

·High mechanical strength and good high temperature and pressure resistance;

·Imported thin film resistor components with reliable and stable performance.

thermal resistorworking principle

The temperature measurement principle of thermal resistance is based on the characteristic that the resistance value of a conductor or semiconductor changes with temperature. Thermistors are mostly made of pure metal materials, with platinum and copper being the most commonly used. Currently, materials such as nickel, manganese, and rhodium have been used to manufacture thermistors. Thermistors typically require the transmission of resistance signals through leads to computer control devices or other secondary instruments.

thermal resistorThe selection is as follows:

■Assemble thermistorModel naming method:

model									Instructions
W									Temperature Instrument
	Z								thermal resistor
		P	Temperature sensing material						P Platinum
		C							C copper
			none	Even number of threads					single piece
			2						Double support
				1	install fixed form				No fixed device
				2					Fixed thread
				3					Activity flange
				4					Fixed flange
				5					Flexible tube connector type
				6					Fixed thread cone type
				7					Straight pipe joint type
				8					Fixed threaded pipe joint type
				9					Active threaded pipe joint type
					2	Form of junction box			Anti spray type
					3				waterproof type
						0	Diameter of protective tube		￠16
						1			￠12
							G	Workplace format	variable cross-section

Example of WZP2-231G model

■Armored thermistorModel naming method:

model									Instructions
W									Temperature Instrument
	Z								thermal resistor
		P	Temperature sensing material						P Platinum
			K						Armored type
				none	Even number of threads				single piece
				2					Double support
					1	install fixed form			No fixed device
					2				Fixed card sleeve thread
					3				Activity card sleeve thread
					4				Fixed card sleeve flange
					5				Activity card sleeve flange
						2	Form of junction box		Anti spray type
						3			waterproof type
						6			Circular plug-in type
						7			Flat plug-in type
						9			Compensation wire type
							3	diameter	￠3
							4		￠4
							5		￠5
							6		￠6
							8		￠8

WZPK2-236G 型号示例

■explosion-proof thermal resistorModel naming method:

model									Instructions
W									Temperature Instrument
	Z								thermal resistor
		P	Temperature sensing element material						P Platinum
		C							C copper
			none	Even number of threads					single piece
			2						Double support
				1	install fixed form				No fixed device
				2					Fixed thread
				3					Fixed flange
				4					Activity flange
				5					Flexible tube connector type
				6					Fixed thread cone type
				7					Straight pipe joint type
				8					Fixed threaded pipe joint type
				9					Active threaded pipe joint type
					4				Explosion proof type
						0	Diameter of protective tube		￠16
						1			￠12
							G	Workplace format	variable cross-section

Example of WZP2-241 G model