CN103149136A - Sensor cavity - Google Patents

Sensor cavity Download PDF

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Publication number
CN103149136A
CN103149136A CN 201310073250 CN201310073250A CN103149136A CN 103149136 A CN103149136 A CN 103149136A CN 201310073250 CN201310073250 CN 201310073250 CN 201310073250 A CN201310073250 A CN 201310073250A CN 103149136 A CN103149136 A CN 103149136A
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CN
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Prior art keywords
cavity
laser
sensor
shell
air
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CN 201310073250
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Chinese (zh)
Inventor
吴俊民
吴为
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苏州市尚科产品检测中心
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Abstract

The invention discloses a sensor cavity comprising a shell which is internally provided with a circular cavity, wherein the outer side face of the shell is fixedly provided with an air inlet nozzle and an air outlet nozzle, which are symmetrical to each other and penetrate through the inner and outer sides of the circular cavity of the shell; the circular cavity at the inner side of the shell is internally provided with a laser device and a reflection mirror, which are symmetrical to each other; included angles between the air inlet nozzle, the reflection mirror an air outlet nozzle and the laser device are 90 degrees; and the laser device is internally provided with a cylinder lens. The sensor cavity disclosed by the invention has the advantages that the structure is simple and emitted circular-point laser beams can be changed into thin-strip-shaped laser beams; and an irradiation area of the laser beams is enlarged and introduced air can be completely transmitted, so that the measuring precision of a sensor is improved.

Description

一种传感器腔体 A sensor cavity

技术领域 FIELD

[0001] 本发明涉及一种空气粒度检测装置,尤其涉及一种传感器腔体。 [0001] The present invention relates to an air particle detection apparatus, particularly to a sensor cavity.

背景技术 Background technique

[0002] 空气粒度检测装置是用于对空气中微粒含量进行检测的装置,检测时,首先对空气进行采样,然后通过气管将采样的空气传入传感器中,通过传感器上设置的激光投射装置对通入的空气进行透射,通过激光的反射率来判定空气中微粒的含量。 [0002] Air particle size detecting means is for airborne particulate content of the means for detecting is performed, detection, firstly the air is sampled, and then pass the sensor through the air duct will be sampled, a laser projector apparatus through the upper sensor disposed into the air transmission, to determine the content of particles in the air by the reflection of the laser light. 但是,由于输入进传感器内的空气面积较大,而激光投射装置射出的激光束呈原点状,因此,导致激光透射到空气上的面积小,使检测精度大大降低。 However, since the input into larger air area in the sensor and the laser projector emits a laser beam was origin shape, thus resulting in laser transmission to a small area on the air, so that the detection accuracy is greatly reduced.

发明内容 SUMMARY

[0003] 本发明所要解决的技术问题是,提供一种透射面积大,检测精度高的的传感器腔体。 [0003] The present invention solves the technical problem is large to provide a transmission area, a high detection accuracy of the sensor cavity.

[0004] 为了解决上述技术问题,本发明是通过以下技术方案实现的:一种传感器腔体,包括内部设置有圆形腔体的壳体,所述壳体的外侧面上固定设置有相互对称且贯通壳体圆形腔体内外侧的进气嘴和出气嘴,所述壳体内侧圆形腔体内还设置有相互对称的激光器和反射镜,进气嘴、反射镜出气嘴以及激光器之间的夹角均为90°。 [0004] To solve the above problems, the present invention is achieved by the following technical solutions: A sensor cavity, comprising internally provided with a circular cavity housing, the outer surface of the fixed housing are symmetrical to each other and penetrates the outer circular cavity housing a gas inlet nozzle and outlet nozzle, the housing inner circular cavity provided with a mutual symmetrical laser and the mirror, the intake nozzle, a mirror outlet nozzle and laser angle are 90 °.

[0005] 为了使圆点状激光束衍变为细条形激光束,进一步地,所述激光器内设置有柱镜。 [0005] In order to dot-shaped laser beam Evolution fine stripe laser beam, and further, the inner laser is provided with a lenticular.

[0006] 与现有技术相比,本发明的有益之处是:这种传感器腔体结构简单,可以使射出的圆点激光束变为细条形激光束,增大激光束的照射面积,使通入的空气能够完全透射,从而提高了传感器的测量精度。 [0006] Compared with the prior art, the benefits of the present invention are: The sensor is simple cavity structure, the dots of the laser beam emitted becomes fine stripe laser beam, increasing the irradiation area of ​​the laser beam, so that into the air to complete transmission, thereby improving the measurement accuracy of the sensor.

[0007] 附图说明: [0007] BRIEF DESCRIPTION OF DRAWINGS:

下面结合附图对本发明进一步说明。 DRAWINGS further explanation of the invention.

[0008] 图1是本发明一种传感器腔体结构示意图。 [0008] FIG. 1 is a sensor schematic cavity structure of the present invention.

[0009] 图中:1、壳体;2、进气嘴;3、反光镜;4、出气嘴;5、激光器。 [0009] FIG: 1, a housing; 2, the intake nozzle; 3, mirrors; 4, outlet nozzle; 5, laser.

[0010] 具体实施方式: [0010] DETAILED DESCRIPTION:

下面结合附图及具体实施方式对本发明进行详细描述: The present invention will be described in detail in conjunction with accompanying drawings and specific embodiments:

图1所示一种传感器腔体,包括内部设置有圆形腔体的壳体1,所述壳体I的外侧面上固定设置有相互对称且贯通壳体I圆形腔体内外侧的进气嘴2和出气嘴4,所述壳体I内侧圆形腔体内还设置有相互对称的激光器5和反射镜3,所述激光器5内设置有柱镜;所述进气嘴2、反射镜3出气嘴4以及激光器5之间的夹角均为90°。 Chart A shown in FIG. 1 sensor cavity, comprising internally provided with a circular cavity housing 1, the housing I is the outer surface of the fixing provided symmetrical to each other and passing through the outer circular cavity housing I intake mouth 2 and an outlet nozzle 4, the case inside I circular cavity is also provided with a symmetrical laser 5 and the mirror 3 is provided with a cylinder within said laser 5; said inlet nozzle 2, the mirror 3 the angle between the outlet nozzle 4 and a laser 5 are 90 °.

[0011] 其工作原理如下,将柱镜装入激光器5内,使用时,打开激光器5,激光器5投射出细条形的激光束射到反光镜3上,并由激光器5进行反馈,期间,进气嘴2将采样的空气输入壳体I内,再由出气嘴4输出,由于激光束与采样的空气呈十字交叉形,且激光束为细条形,因此通入的气体均被激光束所射中,从而能够有效检测出空气中微粒的含量。 [0011] It works as follows, the lenticular loaded into the laser 5, in use, to open the laser 5, the laser 5 projects a thin stripe laser beam impinges the mirror 3 by laser 5 feedback period, into gas nozzle 2 the air sampled input within a housing I, and then output from the outlet nozzle 4, since the form of the air of the laser beam and the sample cross-shaped, and the laser beam is a thin strip, passes into the gas are laser beam emitted thereby possible to effectively detect the content of particles in the air.

[0012] 这种传感器腔体结构简单,可以使射出的圆点激光束变为细条形激光束,增大激光束的照射面积,使通入的空气能够完全透射,从而提高了传感器的测量精度。 [0012] The sensor cavity structure is simple, can make dots of the laser beam emitted becomes fine stripe laser beam, increasing the irradiation area of ​​the laser beam that passed through the air to complete transmission, thereby improving the measurement accuracy of the sensor .

[0013] 需要强调的是:以上仅是本发明的较佳实施例而已,并非对本发明作任何形式上的限制,凡是依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均仍属于本发明技术方案的范围内。 [0013] It is emphasized: The above are only preferred embodiments of the present invention, but not be limited to any form of the present invention, all based on any simple modification techniques essence of the invention of the above embodiments taken embodiment, all equivalent changes modifications as would fall within the scope of the present invention.

Claims (2)

  1. 1.一种传感器腔体,其特征在于:包括内部设置有圆形腔体的壳体(1),所述壳体(I)的外侧面上固定设置有相互对称且贯通壳体(I)圆形腔体内外侧的进气嘴(2)和出气嘴(4),所述壳体(I)内侧圆形腔体内还设置有相互对称的激光器(5)和反射镜(3),进气嘴(2)、反射镜(3)出气嘴(4)以及激光器(5)之间的夹角均为90°。 A sensor cavity, characterized by: comprising internally provided with a circular cavity housing (1), the housing (I) of the outer surface is fixedly provided symmetrically to each other and passing through the casing (I) outside of the circular cavity inlet nozzle (2) and outlet nozzle (4), the housing (I) inside the circular cavity is also provided with a symmetrical laser (5) and the mirror (3), the intake nozzle (2), the angle between the mirrors (3) the outlet nozzle (4) and a laser (5) are 90 °.
  2. 2.根据权利要求1所述的传感器腔体,其特征在于:所述激光器(5)内设置有柱镜。 The sensor cavity according to claim 1, wherein: said laser (5) provided with a cylinder.
CN 201310073250 2013-03-08 2013-03-08 Sensor cavity CN103149136A (en)

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CN1062209A (en) * 1990-12-05 1992-06-24 中国科学院上海光学精密机械研究所 Optical probe for laser dust particle calculator
CN2109569U (en) * 1992-01-30 1992-07-08 中国科学院上海光学精密机械研究所 Optical probe for laser dust particle counter
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CN2145380Y (en) * 1992-12-30 1993-11-03 华东工学院 Optical sensor for dust particle counter
CN2316653Y (en) * 1997-10-17 1999-04-28 苏州苏净集团公司 Miniature optical sensor for laser dust particle counter
US6016194A (en) * 1998-07-10 2000-01-18 Pacific Scientific Instruments Company Particles counting apparatus and method having improved particle sizing resolution
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