| abstract |
The invention discloses a multi-component harmful gas detection device and detection method in a kitchen environment. The detection device includes a sampling module, a power supply module, a gas chamber and a sensor module, a signal processing module, an AD conversion module, a minimum system module of a single chip microcomputer, serial port module. When the air is fed into the gas chamber at a constant speed from the outside, the sensor can quickly stabilize, respond and restore the voltage baseline. The output voltage response can be received and processed by the single-chip microcomputer, and output three kinds of carbon monoxide, methane and formaldehyde in the mixed gas to the upper computer. Component concentration test results. The device has perfect functions, small size, convenient operation, good accuracy, stability and repeatability, and can be used as a core device in the production of harmful gas detection instruments in the kitchen environment. |