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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Patent type
Prior art keywords
cavity
laser
sensor
shell
circular
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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] means for detecting an air particle size of the particle content of the air detection apparatus performs, upon detecting, first, air sampling, and then passing the sensor through the air duct will be sampled by the laser projector of the sensor provided transmitting into the air, to determine the content of particles in the air by laser light reflectance. 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 air into a larger area within the sensor, and the laser projector emits a laser beam shape was the origin, thus resulting in a small area on the laser light is transmitted to 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, to provide a large-area transmission, the 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, including a cavity provided inside a circular housing, the outer surface of the fixed housing provided with a symmetrical and a circular cavity through the outer housing inlet nozzle and outlet nozzle, the inner housing is also provided with a circular cavity between the laser and another mirror symmetry, the inlet nozzle, outlet nozzle and the laser mirror 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 evolve the dot-shaped laser beam as a fine stripe laser beam, and further, the inner cylinder is provided with a laser.

[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 is: This simple sensor cavity structure, the laser beam emitted from the dot becomes fine stripe laser beam, the laser beam irradiation area is increased, so that air can pass into 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 The present invention is further described.

[0008] 图1是本发明一种传感器腔体结构示意图。 [0008] FIG. 1 is a schematic diagram of a sensor 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, nozzle outlet; 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°。 The one shown in FIG. 1 sensor cavity, comprising an internal cavity is provided with a circular housing 1, the outer surface of the fixed housing I is symmetrical and provided with a circular cavity through the outer housing intake I mouth and an outlet nozzle 4 2, the inner shell I is also provided with a circular cavity laser 5 symmetrical to each other and the mirror 3 is provided with a laser 5 within said cylinder; said inlet nozzle 2, the mirror 3 the angle between the laser 5 and the outlet nozzle 4 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 laser will be loaded into the cylinder 5, in use, to open the laser 5, a fine stripe laser 5 is projected laser beam incident on the mirror 3, the laser 5 by a feedback period, into 2 the gas nozzle within the housing air sampling inputs I, output from the outlet nozzle 4 and then, since the air was sampled with the laser beam cross-shaped, and the laser beam is a thin strip, passes into the gas are emitted laser beam thereby possible to effectively detect the fine 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] This sensor cavity simple structure, allows the laser beam emitted from the dot becomes fine stripe laser beam, the laser beam irradiation area is increased, so that air can pass into the 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 that: the above embodiments are merely preferred embodiments of the present invention, but not form any limitation of the present invention, all based on the technical essence any simple modification of the above embodiment of the present invention is made of the embodiment, variations and equivalents 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 an internal cavity is provided with a circular housing (1), the housing (I) is fixed to the outer surface is symmetrical and provided with a through housing (I) outer circular cavity inlet nozzle (2) and outlet nozzle (4), the housing (I) inside the circular cavity symmetrical to each other is also provided with a 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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US20040080747A1 (en) * 2002-10-28 2004-04-29 Particle Measuring Systems, Inc. Low noise intracavity laser particle counter
CN2935133Y (en) * 2006-06-09 2007-08-15 深圳市赛纳威环境仪器有限公司 The optical sensor
CN201037868Y (en) * 2007-03-13 2008-03-19 魏润杰 High speed particle image speed measuring device
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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
CN2132182Y (en) * 1992-08-07 1993-05-05 中国科学院上海光学精密机械研究所 White-light optical detector of dust particle counter
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
CN1309289A (en) * 2001-03-30 2001-08-22 中国科学院上海光学精密机械研究所 Optical probe of optical dust particle counter
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CN2935133Y (en) * 2006-06-09 2007-08-15 深圳市赛纳威环境仪器有限公司 The optical sensor
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