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Combustible gas sensor

A gas sensor and gas technology, applied in the field of sensors, can solve problems such as deviation of measurement values, and achieve the effect of accurate measurement

Inactive Publication Date: 2018-10-16
佛山市澄澜点寸科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the combustible gas sensor has the problem that the combustible gas concentration is measured by raising the temperature of the crystal oscillator due to the heat generated by the combustible gas reaction catalyst layer, so the measured value will deviate from the temperature of the environment in which it is used.

Method used

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  • Combustible gas sensor

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Embodiment Construction

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] Such as figure 1 As shown, the present invention provides a sensor, and the sensor includes a housing, a motor, fan blades and an analysis device. The housing is generally rectangular. The motor and fan blades are arranged at the lower part of the casing, and relatively, the analyzing device is arranged at the upper part of the casing. The casing is provided with accommodating space for accommodating the motor and fan blades. The analysis device includes a gas absorption container...

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Abstract

The invention relates to a combustible gas sensor. Gas to be detected, which is blown in, is subjected to oxidization combustion, so that a current concentration index of the gas to be detected is obtained; a user of the sensor can more clearly know about a concentration condition of the inhaled gas to be detected, so as to determine a current practical action; when the sensor is in contact with gas including the gas to be detected which contains combustible gas and the like, the frequency difference and frequency ratio of a first crystal vibrator ad a second crystal vibrator or a combinationof the frequency difference and the frequency ratio is used for carrying out operation, so that influences, caused by factors except oxidization heat of the combustible gas, can be eliminated. According to the combustible gas sensor provided by the invention, the measurement of the concentration of the gas to be detected can be accurately implemented even if the environment temperature is changed.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a combustible gas sensor. Background technique [0002] Due to its advantages of high combustion efficiency and non-polluting products, natural gas, together with solar energy and nuclear energy, is called the three major new energy sources. As a new energy source, natural gas is widely used in aviation, power and other fields; at the same time, natural gas, as a reducing gas and carrier gas, plays an extremely important role in chemical industry, electronics, medical treatment, metal smelting, especially in the field of military defense. Value. However, natural gas molecules are very small, and are easy to leak during production, storage, transportation and use. Since natural gas is not conducive to breathing, it is colorless and odorless, and cannot be detected by the human nose, and its ignition point is only 585°C. In the range of 4% to 75%, an explosion will occur when encountering ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/22
CPCG01N25/22
Inventor 徐雪华
Owner 佛山市澄澜点寸科技有限公司
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