Amwei Thermistor Co., Ltd. – Product Catalog : Electronic and electrical, Censor, Medical Temperature Sensors

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Amwei Thermistor Co., Ltd.

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Thermistor Temperature Sensor Probe

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Electronic and electrical->Censor->Medical Temperature Sensors

Product Specification

Country	CN
Brand	AMWEI
Materials	Thermistor temperature sensor

Product Detail

NTC Thermistor can be assembled in housing in a variety of configurations for temperature sensing, measurement, detection, indicator, monitoring and control. Thermistor temperature sensor probe assemblies can conveniently attach to or be an integral part of any system to monitor or control temperature.The choice of assembly is dependent on the application. The primary factors which determine the optimum configuration of a thermistor assembly are the operating environment, mounting, time response and minimum dissipation constant.
The two factors which do vary considerably with thermistor sensor probe assembly design are time constant and dissipation constant. The time constant will typically be of greater duration in encapsulated thermistors. This is, of course, due to additional mass surrounding the thermistor element; therefore, extending the thermal transfer time. Dissipation constant will also be greater in assemblies. The additional housing mass serves well as a heat sink. Greater power is therefore required to induce self-heating. Both time constant and dissipation constant will vary with the selected thermistor and housing. Heat transfer properties of the housing, thermistor location, mass and wire type determine these constants.
Applications for temperature sensing include air temperature sensors, surface temperature sensors and immersion temperature sensors. Housings for air temperature sensors are often simple, inexpensive devices such as molded plastic shells, deep-drawn brass or aluminum cylinders, or even stainless steel tubes. Surface temperature sensors are designed to match the contour of the surface to be sensed, whether it is flat, curved, or round. Mounting holes or clips are often used to simplify installation of the sensor. Immersion temperature sensors are designed so that the sensing element will be surrounded by the medium to be sensed, often times a liquid. The sensing portion will normally protrude through a hole or orifice while a portion of the assembly will remain outside the medium to allow for the signal to be read. Immersion housings are usually threaded to allow them to be screwed into a hole or opening. Immersion part requests to be liquid and humidity prevention.
The material used for the housing will be dependent upon the temperature range needed, response time, cost, and special considerations in food or medical applications. Some of the materials available include stainless steel, copper, plastic, teflon, brass, aluminum, epoxy and heat shrinkable tubing.
Some thermistor sensor assembly examples such as:
Copper tube (pipe)case thermistor temperature sensor probe assembly for application in air conditioner for regulating the evaporator temperature, and other HVAC (Heating, ventilation and air conditioning) application.
ABS plastic tube (pipe) case thermistor temperature sensor assembly for refrigerator, freezer, air conditioner, floor heating, and other HVAC application, etc.
Ring lug stud form surface temperature sensor, for measurement, sensing on housings and pipes, etc. Typical application include semiconductor heatsinks, enclosure panels.
Glass encapsulated thermistor, housed in stainless steel sheath, with rectangle flange and 1 or 2 mounting holes.for standard domestic oven, microwave oven, electric cooker, roaster, toaster, industrial process control, etc.
Long stainless steel housing, with pointed tip, for easily penetrating and piercing soft and semi-frozen materials, handling for multi-point temperature sensing. Can be used in food processing, oven, liquid (water) boiler. Also ideal for soil and ground measurements.
Screw stainless steel housing thermistor temperature sensor probe assembly for food processing, heating, water (liquid) heater boiler, such as coffee maker, tea kettle, soybean milk machine, kitchen appliance, etc.
Hex head bolt with stainless steel tube thermistor temperature sensor probe for temperature measurement of liquid, water, air, etc. Ideal for vessel and pipe installation. Typical application coffee maker, tea kettle, water heater boilers, soybean milk cooking equipment, and other home appliance.
Glass encapsulated NTC thermistor housed in silcon tube for home electric appliances, hair beauty appliance, hair curler, hair straightener, motor temperature sensing, etc.


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