Pyroelectric sensor and preparation method thereof
A pyroelectric sensor and circuit board technology, applied in the field of sensors, can solve the problems of reduced transmittance of infrared filters, reduced signal strength, and many required components, so as to reduce the complexity of production process, reduce signal attenuation, The effect of improving production efficiency
Pending Publication Date: 2021-06-22
驻马店市赛琅格斯光电有限公司
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Problems solved by technology
[0003] However, the existing technical solutions still have the following disadvantages: the existing pyroelectric sensor has a complex structure, and the infrared filter is used to reduce the transmittance and reduce the signal strength; the process is complex, the required parts are many, and the investment in equipment is large.
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[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0028] Such as figure 1 and figure 2 Shown is a schematic structural diagram of the pyroelectric sensor of the present invention. A pyroelectric sensor in the present invention includes a cap 1 integrating a Fresnel lens, an induction element 2, a signal processing chip 3, a circuit board 4 and a TO base 6;
[0029] Specifically, the circuit board 4 is fixedly placed on the upper end of the TO base 6, the signal processing chip 3 is fixedly placed on the upper end of the circuit board 4, and the sensing element 2 is fixedly placed on the signal processing chip 3, and is connected with the signal input terminal of the signal processing chip 3; the lower end of the TO base 6 is fixedly connected with a terminal lea...
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The invention relates to a pyroelectric sensor and a preparation method thereof, and belongs to the technical field of sensors. The pyroelectric sensor comprises a pipe cap integrated with a Fresnel lens, an induction element, a signal processing chip, a circuit board and a TO base, the circuit board is fixedly arranged at the upper end of the TO base, the signal processing chip is fixedly arranged at the upper end of the circuit board, and the induction element is fixedly arranged at the upper end of the signal processing chip and connected with the signal input end of the signal processing chip; the lower end of the TO base is fixedly connected with a terminal lead, and the terminal lead is connected with the signal output end of the signal processing chip through the circuit board; and the tube cap is fixedly arranged at the upper end of the TO base and covers the circuit board and the signal processing chip. Compared with the prior art, the signal intensity and the response area of the pyroelectric sensor can be improved, the complexity of the production process is reduced, and the production efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of sensors, in particular to a pyroelectric sensor and a preparation method thereof. Background technique [0002] The pyroelectric sensor in the prior art adopts a large-sized TO39 / 5 base, the diameter of the base is 10MM, and its height is 4-5MM; gaskets, PCB circuit boards, infrared filters and tubes are also used Caps and other materials are processed into pyroelectric sensors; the assembly steps of pyroelectric sensors include: TO39 base loading→gasket loading and dispensing→PCB circuit board processing→PCB circuit board loading and dispensing→dot silver link TO39 base Leads and PCB circuit board → die-bonding gasket → die-bonding sensor element contact silver → loading tube cap → sealing and welding → testing. [0003] However, the existing technical solutions still have the following disadvantages: the existing pyroelectric sensor has a complex structure, and the use of an infrared filter reduces the...
Claims
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Login to View More IPC IPC(8): G01J5/34G01J5/02
CPCG01J5/0205G01J5/34
Inventor路卫华肖涛戴凤斌黄伟林
Owner驻马店市赛琅格斯光电有限公司