Temperature sensing module

A technology of temperature sensor and temperature sensing, applied in thermometers, thermometer applications, radiation pyrometry, etc., can solve the problems of different physical properties, different heating/cooling speeds, etc., and achieve the same heating/cooling speed and anti-interference The energy can be improved and the effect of saving electric energy
CN101532886AInactive Publication Date: 2009-09-16FORTUNE SEMICON
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
FORTUNE SEMICON
Publication Date
2009-09-16
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a temperature sensing module which comprises a first temperature sensor and a second temperature sensor. The first temperature sensor is used for sensing the ambient temperature, while the second temperature sensor is used for sensing the temperature of eardrum. The first temperature sensor adopts a thermal diode, while the second temperature sensor can adopt a thermopile type thermal sensor or an infrared temperature sensor (CMOS-IR Detector) which is manufactured by the complementary metal-oxide semiconductor manufacturing technology. The temperature sensors are both made of semiconductor material so as to maintain identical physical properties. Even if the temperature sensors are simultaneously operated under the conditions with different temperature, the heating / cooling rates thereof are identical. The invention has the advantages of simple correction, low manufacturing cost and low power consumption.
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Description

technical field

[0001] The invention relates to a temperature sensing element suitable for an infrared ear thermometer, in particular to a temperature sensing module integrating two temperature sensing elements. Background technique

[0002] Infrared sensors can be mainly divided into two categories: one is a thermal sensor, and the other is a light sensor. Among them, thermal sensors are generally the type commonly used in infrared ear thermometers. Currently, thermal sensors can be divided into three types: thermopile, pyroelectric and bolometer. ). Since every object with temperature emits infrared thermal radiation, when using an infrared ear thermometer to measure the eardrum temperature, the ambient temperature can easily affect the accuracy of the ear temperature measurement results. For infrared ear thermometers As far as the manufacturer is concerned, the infrared ear thermometer designed and produced must be able to automatically compensate and adjust according t...

Claims

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