Portable combustible gas detector having temperature compensation function
A gas detector and temperature compensation technology, applied in the direction of instruments, alarms, etc., can solve the problems of misjudgment and unsatisfactory effect, and achieve the effect of eliminating influence, reducing hidden dangers and easy operation.
Inactive Publication Date: 2017-09-15
CHENGDU ANGDIJIA TECH CO LTD
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Problems solved by technology
Conventional combustible gas sensors have a zero point temperature drift of 0.1-0.3mv / K, which will be misjudged as a combustible gas concentration signal, and temperature-sensitive element compensation or software compensation is often used, but the effect is not ideal
Method used
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Embodiment Construction
[0016] The present invention will be further described below with reference to the accompanying drawings and examples, and the implementation of the present invention includes but not limited to the following examples.
[0017] Such as figure 1 , 2 A portable combustible gas detector with temperature compensation function is shown, including a housing 1, an air inlet 2 arranged on the housing 1, a display screen 3, an on / off key 4, a detection key 5 and an inquiry key 6, The circuit board 7, microprocessor, combustible gas sensor 8, temperature compensation circuit, filter circuit, analog-to-digital conversion circuit, power supply 9, memory and alarm module arranged in the housing 1; the combustible gas sensor 8 is connected with the The air port 2 is connected and connected to the microprocessor through the temperature compensation circuit, the filter circuit, and the analog-to-digital conversion circuit in turn, and the circuit board 7 is connected to the power supply 9, m...
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The invention discloses a portable combustible gas detector having a temperature compensation function. The portable combustible gas detector comprises a shell, an air inlet, a display screen, an on / off key, a detection key and an inquiry key which are arranged on the shell, and a circuit mainboard, a microprocessor, a combustible gas sensor, a temperature compensation circuit, a filter circuit, an analog-to-digital conversion circuit, a power supply, a memory and an alerter module which are arranged in the shell. The combustible gas sensor is conducted with the air inlet and connected with the microprocessor through the temperature compensation circuit, the filter circuit and the analog-to-digital conversion circuit in turn. The circuit mainboard is connected with the power supply, the memory, the alerter module, the display screen, the on / off key, the detection key, the inquiry key and the microprocessor. The combustible gas detector having the temperature compensation function is accurate in detection, handheld, convenient to operate, small in size and convenient to carry and can be taken to different places to measure the content of the combustible gas according to the requirements so as to be convenient and practical.
Description
technical field [0001] The invention relates to the field of gas detection, in particular to a portable combustible gas detector with temperature compensation function. Background technique [0002] Combustible gases such as natural gas, liquefied petroleum gas, coal gas, hydrogen, etc. are prone to fire and explosion when exposed to fire or sparks in the air, posing a great threat to life and property. In order to prevent the explosion of combustible gas after reaching a certain concentration and ensure production safety, it is often necessary to install combustible gas detection and alarm devices in factories or places that produce and use combustible gas. The main component of this combustible gas detection and alarm device is a combustible gas sensor, which is usually fixed and can only detect combustible gas at a fixed location. It is very inconvenient when other locations or different locations need to be detected. The portability and ease of use of testing instrument...
Claims
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IPC IPC(8): G08B21/16
CPCG08B21/16
Inventor 周建英
Owner CHENGDU ANGDIJIA TECH CO LTD