Self-powered gas sensor based on asymmetric electrostatic shielding effect and its preparation method
A gas sensor and electrostatic shielding technology, applied in the field of sensors, can solve the problems of difficult large-scale integration, complex preparation, high cost, etc., and achieve the effects of low cost, simple preparation process, and stable output performance
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Embodiment 1
[0049] Such as figure 1 As shown, the present invention provides a method for preparing a self-powered gas sensor based on the asymmetric electrostatic shielding effect, comprising the following steps:
[0050] Step A: Prepare the friction rotor 4; use a laser cutting machine to cut the Teflon film to form a four-leaf fan-shaped structure with a diameter of 5 cm as the friction film. According to the common knowledge in the art, the material for the friction rotor 4 can be any suitable material , this embodiment only gives a preferred material; in order to better drive the rotation of the fan-shaped blades, this embodiment adheres a light and thin forced air cylinder on the side of each fan-shaped blade. According to the common knowledge in the art: it is helpful The structure rotating on the fan-shaped blade is not limited to the above-mentioned structure, but can be any suitable structure;
[0051] Step B: prepare a gas-sensitive double electrode; select a plexiglass substr...
Embodiment 2
[0060] In this embodiment, except that the Teflon film is a reinforced polymer friction film with a rough surface obtained through reactive ion etching, the rest of the structure and preparation process are the same as those in Embodiment 1, and will not be repeated here.
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Abstract
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