Thermistor type air velocity transducer with temperature compensation
A wind speed sensor and thermistor technology, applied in the field of sensors, can solve the problems of complex signal processing circuit, weak output signal, limited rotation quality, etc., and achieve the effect of simple back-end processing circuit, small measurement inertia, simple and reliable structure
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[0019] A thermistor-type wind speed sensor with temperature compensation, such as figure 1 As shown, the sensor includes a self-heating thermistor 1, a temperature compensation thermistor 2, a thermal insulation pillar 3, a metal tube 4, glue 5, a wire A6 and a wire B8; the thermal insulation pillar 3 has a through hole 7;
[0020] Self-heating thermistor 1 is a MF51 type semiconductor thermistor, and its resistance at 0°C is 2KΩ;
[0021] The temperature compensation thermistor 2 is a semiconductor thermistor of type MF51, and its resistance at 0°C is 25KΩ;
[0022] The heat-insulating pillar 3 is made of polyamide oxide material, which has high structural strength and can withstand high temperatures of 400°C;
[0023] Adhesive 5 is CH31 epoxy adhesive, which has high bonding strength and can withstand high temperature of 220°C;
[0024] Use glue 5 to fix the self-heating thermistor 1 and temperature compensation thermistor 2 in the heat insulation support 3, the sensitive ...
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