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Digital thermometer

A thermometer and digital technology, applied in the field of temperature measurement, can solve the problems of time-consuming, low-accuracy, and inappropriate use of thermometers, and achieve the effects of low power consumption, fast response time, and low cost

Inactive Publication Date: 2016-06-01
SHAANXI HI TECH ENERGY DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional thermometers take time to measure and have low accuracy. Moreover, the temperature measuring devices on the market are suitable for large power consumption appliances and are not easy to use.

Method used

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  • Digital thermometer

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Embodiment Construction

[0014] A digital thermometer, characterized in that it is composed of a timing circuit, a temperature acquisition circuit, a pulse amplification circuit, a counting circuit, and a decoding display circuit; wherein, the timing circuit, the temperature acquisition circuit, the pulse amplification circuit, the counting circuit, and the decoding display circuit Connected in sequence, the timing circuit is connected with the counting circuit. The timing circuit is connected with the counting circuit through a differential circuit. The timing circuit is a monostable trigger circuit, which is composed of NE555. The temperature acquisition circuit is composed of a digital temperature sensor SWC and an amplifier tube VT1. The counting circuit is composed of 3-bit dynamic scanning counter MC14553. The decoding display circuit is a BCD decoder MC14511 with latch / decode / drive functions.

[0015] MC14511 is a latched /

[0016] The BCD decoder with decoding / driving function is a CMOS de...

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Abstract

The invention relates to the field of temperature measurement, and specifically relates to a digital thermometer. The digital thermometer is characterized by comprising a timing circuit, a temperature collection circuit, a pulse amplification circuit, a counting circuit and a decoding display circuit, wherein the timing circuit, the temperature collection circuit, the pulse amplification circuit, the counting circuit and the decoding display circuit are connected in sequence, and the timing circuit and the counting circuit are connected. Compared with the traditional mercury thermometer, the digital thermometer is quicker in response. Compared with other thermometers and temperature measuring systems, the digital thermometer has the advantages of visual and clear display, high sensitivity, low power consumption, strong anti-jamming capability and the like. In addition, the digital thermometer is not easy to damage and is of low cost. If the digital thermometer is equipped with a special connection plug-in or a sensor wire is lengthened, multi-point or remote temperature measurement can be implemented. The digital thermometer can be widely used for measuring the temperature of greenhouses, flower houses, bedrooms, cars, air-conditioning outlets or other environments.

Description

technical field [0001] The invention relates to the field of temperature measurement, in particular to a digital thermometer. Background technique [0002] Ambient temperature has a great influence on industry, agriculture, commerce and people's daily life, and the measurement of temperature has become an indispensable work in people's production and life. Traditional thermometers are time-consuming and less accurate. Moreover, the temperature measuring devices on the market are suitable for high-power consumption appliances and are not easy to use. Contents of the invention [0003] The present invention aims to propose a digital thermometer capable of measuring temperature quickly and accurately. [0004] Technical scheme of the present invention is: [0005] A digital thermometer, characterized in that it is composed of a timing circuit, a temperature acquisition circuit, a pulse amplification circuit, a counting circuit, and a decoding display circuit; wherein, the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/00
Inventor 王耀斌
Owner SHAANXI HI TECH ENERGY DEV
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