Multi-channel heat release electric detector
A detector and multi-channel technology, applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve the problems of low detection rate, simple, weak signal output, etc.
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Embodiment 1
[0020] Such as figure 1 , figure 2 with image 3 As shown, a dual-channel infrared pyroelectric detector includes a detector housing 2, an optical filter 1 embedded in the top surface of the housing, a pyroelectric film 4 arranged on the side wall of the housing, and a pyroelectric film for supporting the pyroelectric film. The film support 3, the detector base 7 forming a closed space with the shell, the circuit board 6 arranged on the base, the curved mirror 5 located on the circuit board, and the pins 8 embedded under the circuit.
[0021] In this embodiment, there are two optical filters 1, one is a reference optical filter, which only allows to pass through the optical filter of 3.9 μm infrared light (the optical filter can be selected according to specific needs). The infrared light basically does not absorb methane gas (take methane as an example here, other measured gases can be substituted) and water vapor, that is, it is not affected by gas, so it is used as a ref...
Embodiment 2
[0023] Such as Figure 4 , Figure 5 with Image 6 As shown, a four-channel infrared pyroelectric detector includes a detector housing 2, an optical filter 1 embedded in the top surface of the housing, a pyroelectric film 4 arranged on the side wall of the housing, and a pyroelectric film for supporting the pyroelectric film. The film support 3, the detector base 7 forming a closed space with the shell, the circuit board 6 arranged on the base, the curved mirror 5 located on the circuit board, and the pins 8 embedded under the circuit.
[0024] In this embodiment, there are four optical filters 1, one is a reference optical filter, which only allows to pass through the optical filter of 4.0 μm infrared light (the optical filter can be selected according to specific needs), and here, the optical filter The infrared light in the wave band basically does not absorb methane, carbon monoxide, carbon dioxide gas (this embodiment takes methane, carbon monoxide, carbon dioxide gas a...
Embodiment 3
[0026] Such as image 3 , Figure 4 with Figure 5 As shown, a four-channel infrared pyroelectric detector includes a detector housing 2, an optical filter 1 embedded in the top surface of the housing, a pyroelectric film 4 arranged on the side wall of the housing, and a pyroelectric film for supporting the pyroelectric film. The film support 3, the detector base 7 forming a closed space with the shell, the circuit board 6 arranged on the base, the curved mirror 5 located on the circuit board, and the pins 8 embedded under the circuit.
[0027] In the present embodiment, described optical filter 1 has four, and one is a reference optical filter, only allows to pass through the optical filter of 3.9 μm infrared light (can select optical filter according to specific needs), here the The infrared light in the band basically does not absorb the C-H bond, that is, it does not absorb alcohol, acetic acid volatile gas (alcohol, acetic acid volatile gas is used as an example here, w...
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