Special calibrating apparatus for automobile exhaust telemeter

A verification device, a technology for automobile exhaust, applied in the direction of testing moving fluids/granular solids, etc.

Inactive Publication Date: 2015-06-17
北京市计量检测科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of detecting automobile exhaust is currently the most advanced method in the world, but whether the exhaust value detected by this instrument is accurate and reliable, there is currently no special instrument to verify it.

Method used

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  • Special calibrating apparatus for automobile exhaust telemeter
  • Special calibrating apparatus for automobile exhaust telemeter
  • Special calibrating apparatus for automobile exhaust telemeter

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Embodiment Construction

[0012] A special verification device for automobile exhaust remote detectors, including a control part, a standard gas ventilation part, and a standard gas tank part. The standard gas tank part includes a cavity 4 with openings 2 on both sides. The positions of the openings 2 on both sides should allow the light path to pass through the cavity The body 4 is provided with an air inlet 1 and an air outlet 7, and the openings 2 on both sides of the cavity 4 are provided with a movable cover 11 that can make the cavity 4 airtight, and the cover 11 is connected with the cavity 4 through a pivot 9, A connecting piece 10 is fixed on the cover 11, and the connecting piece 10 is movably connected with the connecting rod 12 through the rotating shaft 15. The connecting rod 12 is installed on the telescopic electromagnetic relay 14, and a detachable standard gas ventilation part (the Not shown in some figures), and a tee 8 is housed on the air outlet 7, an oxygen sensor 5 is equipped with...

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PUM

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Abstract

The invention discloses a special calibrating apparatus for an automobile exhaust telemeter. The special calibrating apparatus for the automobile exhaust telemeter comprises a standard gas ventilating part, and a standard gas tank part, wherein the standard gas tank part comprises a cavity with openings in two edges; a light path can pass through the positions of the openings in the two edges; an air inlet and an air outlet are formed in the cavity; movable cover bodies capable of sealing the cavity are arranged on the openings in the two edges of the cavity; the cover bodies are respectively connected with the cavity through a pivot shaft; a connector is fixedly arranged on each cover body; the connectors are movably connected with an connecting rod through rotating shafts; the connecting rod is arranged on an adjustable electromagnetic relay; and the detachable standard gas ventilating part is arranged on the air inlet. The problem of testing whether the detection result of the automobile exhaust telemeter is accurate is solved. Thus, the detection accuracy of the telemeter is greatly improved; and the work of the telemeter can be brought into the range of metrological verification.

Description

1. Technical field [0001] The invention relates to a metering verification device, in particular to a special verification device for automobile exhaust remote meter. 2. Background technology [0002] "Automotive Exhaust Remote Meter" is a device that uses telemetry technology to measure the level of automobile exhaust pollutants. Its principle is a detection instrument that uses long-distance luminosity changes caused by exhaust pollutants. When in use, the instrument is placed on both sides of the road, and the instrument emits a beam of light across the road. When a car passes by the instrument, the exhaust gas emitted by the car will change the characteristics of the light beam, thereby detecting the exhaust gas of the car. The level of exhaust pollutants discharged, it is done without affecting the normal driving of the car. At present, there are three kinds of light sources used in automobile exhaust remote detectors at home and abroad, infrared tunable diode laser (T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/85
Inventor 刘育
Owner 北京市计量检测科学研究院
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