Double-channel pyroelectric infrared sensor
A dual-channel pyroelectric and infrared sensor technology, which is used in instruments, scientific instruments, measuring devices, etc., can solve the problems of limiting the use range of the sensor, increasing the volume, and high production cost of the dual-channel pyroelectric infrared sensor, and achieves a high level of improvement. Production efficiency, the effect of reducing production costs
Active Publication Date: 2014-03-26
郑州炜盛电子科技有限公司
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Problems solved by technology
[0002] Most of the existing dual-channel pyroelectric infrared sensors are manufactured by the direct bonding process of FET wafers. Due to the high requirements on the production process and production environment, the production cost of the dual-channel pyroelectric infrared sensors is high; the existing The dual-channel pyroelectric infrared sensor can also be made with packaged field effect tubes. Although the cost of this method is low, the volume of the produced dual-channel pyroelectric infrared sensor is increased due to the large volume of the packaged field effect tube. Large, which limits the scope of use of the sensor itself
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[0013] The technical solutions of the present invention will be described in further detail below through specific implementation methods.
[0014] Such as figure 1 As shown, a dual-channel pyroelectric infrared sensor includes a cap 7, a window arranged at the head end of the cap 7, an infrared filter 6 arranged inside the cap 7, a tube installed at the end of the cap 7 The base 1, the pin 2 set through the tube base 1, the sensor circuit connected to the pin 2, and the upper layer circuit board 4 and the lower layer circuit board 8 arranged in the tube cap 7;
[0015] The upper circuit board 4 and the lower circuit board 8 are respectively arranged on the pins 2, and the sensor circuit is printed on the upper circuit board 4 and the lower circuit board 8, that is, the upper circuit board 4 and the lower circuit board 8 are positioned through the pins 2 on the socket 1;
[0016] The sensor circuit includes two sets of infrared sensitive elements 5 and two field effect trans...
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The invention provides a double-channel pyroelectric infrared sensor which comprises a pipe cap, a window arranged at the head end of the pipe cap, an infrared filter arranged inside the pipe cap, a pipe base arranged at the tail end of the pipe cap, a pipe pin penetrating through the pipe base and a sensor circuit connected to the pipe pin, wherein the sensor circuit comprises two groups of infrared sensitive elements and two field effect transistors; an upper layer circuit board and a lower layer circuit board are arranged in the pipe cap; the upper layer circuit board and the lower layer circuit board are respectively arranged on the pipe pin; the sensor circuit is arranged on the upper layer circuit board and the lower layer circuit board; the two groups of infrared sensitive elements are arranged on the upper side of the upper layer circuit board; and the two field effect transistors are arranged on the upper side of the lower layer circuit board. The double-channel pyroelectric infrared sensor has the advantages of small volume, simplicity in manufacturing, low production cost, high production efficiency and wide application range.
Description
technical field [0001] The invention relates to an infrared gas sensor, in particular to a dual-channel pyroelectric infrared sensor. Background technique [0002] Most of the existing dual-channel pyroelectric infrared sensors are manufactured by the direct bonding process of FET wafers. Due to the high requirements on the production process and production environment, the production cost of the dual-channel pyroelectric infrared sensors is high; the existing The dual-channel pyroelectric infrared sensor can also be made with packaged field effect tubes. Although the cost of this method is low, the volume of the produced dual-channel pyroelectric infrared sensor is increased due to the large volume of the packaged field effect tube. Large, which limits the scope of use of the sensor itself. [0003] For this reason, people have been seeking an ideal technical solution. Contents of the invention [0004] Aiming at the deficiencies of the prior art, the invention provides...
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IPC IPC(8): G01J5/00G01J5/02
Inventor 张小水金贵新赵金领钟克创祁明锋范子亮
Owner 郑州炜盛电子科技有限公司