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Temperature sensor

A technology of temperature sensors and heat transfer devices, applied in thermometers, instruments, scientific instruments, etc., can solve the problems of low sensitivity of temperature sensors and large measurement errors, and achieve the effects of easy promotion, accuracy and simple structure

Inactive Publication Date: 2014-12-17
昆山超强光电设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Traditional temperature sensors have relatively low sensitivity and are easily affected by environmental interference signals. For moving objects, small targets or objects with small heat capacity, large measurement errors will occur

Method used

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  • Temperature sensor

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Embodiment Construction

[0015] A temperature sensor, including a mounting base 1, a silicon base 2 and a silicon cup 3, the top of the mounting base 1 is connected to the silicon base 2, the top edge of the silicon base 2 is connected to the silicon cup 3, the top of the silicon cup 3 is connected to the silicon film 5, and the silicon film 5 A piezoresistive bridge 6 is arranged on the top, and an expansion chamber 4 is provided between the silicon seat 2 and the silicon cup 3. The expansion chamber 4 is equipped with an expansion fluid 7, and the expansion chamber 4 is equipped with a T-shaped heat transfer device 8 inside. The heater 8 passes through the silicon seat 2 and the mounting seat 1, the expansion liquid 7 is a concentrated ammonia solution, the material of the T-shaped heat transfer device 8 is stainless steel, the structure is simple, no PN junction is used, and external signals are prevented from interfering with the measurement, and the measurement sensitivity is relatively high. High...

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Abstract

The invention provides a temperature sensor. The temperature sensor comprises a mounting seat, a silicon seat and a silicone cup; the silicon seat is connected to the top part of the mounting seat; the silicon cup is connected to the side edge of the top part of the silicon seat; a silicon film on which a piezoresistive bridge is arranged is connected to the top part of the silicon cup; an expansion chamber in which expansion solution is contained is arranged between the silicon seat and the silicon cup; a T-shaped heat transfer device is arranged in the expansion chamber and passes through the silicon seat and the mounting seat; the expansion solution is concentrated ammonium solution; the T-shaped heat transfer device is stainless steel. The temperature sensor has the beneficial effects that the structure is simple, a PN junction is saved, the measuring interference caused by an outside signal is avoided, therefore, the measuring sensitivity is high, the measuring accuracy can be maintained all the time during moving, and the popularization is easily carried out.

Description

technical field [0001] The invention relates to a temperature sensor. Background technique [0002] A temperature transducer is 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 categories: contact type and non-contact type. According to the characteristics of sensor materials and electronic components, it can be divided into two types: thermal resistance and thermocouple. [0003] Temperature is a basic physical quantity, and all processes in nature are closely related to temperature. The temperature sensor is the earliest developed and most widely used type of sensor. The market share of temperature sensors greatly exceeds that of other sensors. Since the beginning of the 17th century, people have used temperature to measure. With the support of semiconductor technol...

Claims

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Application Information

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IPC IPC(8): G01K7/16
Inventor 不公告发明人
Owner 昆山超强光电设备有限公司
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