CN209745909U - Sensor calibration device - Google Patents
Sensor calibration device Download PDFInfo
- Publication number
- CN209745909U CN209745909U CN201822235076.9U CN201822235076U CN209745909U CN 209745909 U CN209745909 U CN 209745909U CN 201822235076 U CN201822235076 U CN 201822235076U CN 209745909 U CN209745909 U CN 209745909U
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- sensor
- calibration device
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- gas
- calibration
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Abstract
The utility model discloses a sensor calibration device, which comprises a sensor shell; the method is characterized in that: the sensor shell comprises a sensor upper cover and a sensor lower cover; the bottom surface of the upper sensor cover is connected with the top surface of the lower sensor cover; the outer surface of the lower sensor cover is connected with a calibration device; and an air inlet and an air outlet are arranged on the bottom surface of the calibration device. And a detection cavity is arranged between the interior of the calibration device and the bottom surface of the lower cover of the sensor. And a sealing ring is arranged on the connecting surface between the calibration device and the lower sensor cover. The utility model discloses a gas detection is gathered to the inlet port, and the gas that will gather is stored through detecting the chamber, then detects through the sensor, and the gas outgoing who will detect after the chamber at last detects the chamber, realizes the purpose of short-term test and quick discernment. The effect of quick gas reaction during calibration is realized, the gas path is compact and simple in structure, the calibration gas path is sealed, and the gas calibration reaction time is short.
Description
Technical Field
The utility model relates to a gaseous detection device, in particular to sensor calibration device.
Background
In an explosive gas detection environment, a gas detector is more and more widely applied, along with the complexity of the detection environment and the increase of the types of target gases, the types of sensor parts in the gas detector are increased, the control on the numerical accuracy and the response time of gas sensor calibration is more and more difficult, a typical gas calibration structure of the gas calibration is a left-right gas inlet and outlet structure, and gas only enters the sensor from the periphery due to the fact that the opening of the sensor faces downwards, so that the T9015S is found to hardly meet ideal requirements and cannot reach understood numerical values in the calibration process of the combustible gas sensor. Therefore, the problems of the precision and the response time of gas calibration are solved, and the technical problem which needs to be solved urgently is solved.
SUMMERY OF THE UTILITY MODEL
the utility model aims at providing a calibration device with a sensor, wherein the air inlet and the air outlet can be aligned with the sensor port, and the sensor is calibrated in a direct blowing mode; the calibration device has the advantages of compact and simple gas circuit, sealed calibration gas circuit, short gas calibration reaction time and the like.
The purpose of the utility model is realized like this:
A sensor calibration device comprises a sensor shell; the method is characterized in that: the sensor shell comprises a sensor upper cover and a sensor lower cover; the bottom surface of the upper sensor cover is connected with the top surface of the lower sensor cover; the outer surface of the lower sensor cover is connected with a calibration device; and an air inlet and an air outlet are arranged on the bottom surface of the calibration device.
And a detection cavity is arranged between the interior of the calibration device and the bottom surface of the lower cover of the sensor.
And a sealing ring is arranged on the connecting surface between the calibration device and the lower sensor cover.
The utility model discloses a theory of operation: the utility model discloses a gas detection is gathered to the inlet port, and the gas that will gather is stored through detecting the chamber, then detects through the sensor, and the gas outgoing who will detect after the chamber at last detects the chamber, realizes the purpose of short-term test and quick discernment.
the utility model has the advantages that: the utility model discloses realize the effect of gaseous quick reaction when calibrating, not only gas circuit compact structure is simple, and it is sealed to mark the gas circuit moreover, and gaseous demarcation reaction time is fast.
Drawings
Fig. 1 is a schematic view of the cross-sectional structure of the present invention.
In the figure: 1-sensor upper cover, 2-sensor lower cover, 3-calibration device, 4-air inlet, 5-air outlet, 6-detection cavity and 7-sealing ring.
Detailed Description
The invention will be described in more detail below by way of example with reference to the accompanying drawings:
Example 1
A sensor calibration device comprises a sensor shell; the method is characterized in that: the sensor shell comprises a sensor upper cover 1 and a sensor lower cover 2; the bottom surface of the upper sensor cover 1 is connected with the top surface of the lower sensor cover 2; the outer surface of the lower sensor cover 2 is connected with the calibration device 3; and an air inlet 4 and an air outlet 5 are arranged on the bottom surface of the calibration device 3.
And a detection cavity 6 is arranged between the inside of the calibration device 3 and the bottom surface of the lower sensor cover 2.
And a sealing ring 7 is arranged on the connecting surface between the calibration device 3 and the sensor lower cover 2.
Example 2
The utility model discloses a theory of operation: the utility model discloses an inlet port 4 gathers the detection gas, and the gas that will gather is stored through detecting chamber 6, then detects through the sensor, and the gas outgoing who will detect at last detects chamber 6, realizes the purpose of short-term test and quick discernment.
Example 3
The utility model discloses in, mark the cover and can adopt the nylon material, its appearance is short shape cylinder, and inside is the spill structure, and its spill structure combines together with the lower 2 structures of cover of sensor, opens into sealed detection chamber 6 structure. The bottom of the calibration device 3 is provided with two internal thread holes, the internal thread of the calibration device can be connected with a quick connector to form an air inlet and an exhaust hole 5, the two holes are aligned to the center of the sensor through the detection cavity 6, an O-shaped sealing ring 7 is designed between the structure of the lower cover 2 of the sensor and the side wall of the calibration device 3, and the calibration gas is sealed in the detection cavity 6 through the sealing structure of the sealing ring 7 during calibration, so that the purpose of quick reaction during calibration gas is achieved.
Example 4
As shown in the figure, the structural schematic diagram of the present actual calibration apparatus 3 includes: the device comprises an upper sensor cover 1, a lower sensor cover 2, a calibration device 3, an air inlet 4, an exhaust hole 5, a detection cavity 6 and an O-shaped sealing ring 7. The sensor upper cover 1 and the sensor lower cover 2 are sensor mounting structures. The calibration device 3 and the sensor lower cover 2 are fixedly installed through an O-shaped sealing ring 7.
As shown in the figure, the real type detection cavity 6 is formed by sealing the sensor lower cover 2, the calibration device 3 and an O-shaped sealing ring 7.
As shown in the figure, the real air inlet hole 4 and the exhaust hole 5 are used for calibrating target gas through the detection cavity 6.
Claims (3)
1. A sensor calibration device comprises a sensor shell; the method is characterized in that: the sensor shell comprises a sensor upper cover and a sensor lower cover; the bottom surface of the upper sensor cover is connected with the top surface of the lower sensor cover; the outer surface of the lower sensor cover is connected with a calibration device; and an air inlet and an air outlet are arranged on the bottom surface of the calibration device.
2. A sensor calibration device according to claim 1, wherein: and a detection cavity is arranged between the interior of the calibration device and the bottom surface of the lower cover of the sensor.
3. A sensor calibration device according to claim 1, wherein: and a sealing ring is arranged on the connecting surface between the calibration device and the lower sensor cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822235076.9U CN209745909U (en) | 2018-12-28 | 2018-12-28 | Sensor calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822235076.9U CN209745909U (en) | 2018-12-28 | 2018-12-28 | Sensor calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209745909U true CN209745909U (en) | 2019-12-06 |
Family
ID=68703027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822235076.9U Active CN209745909U (en) | 2018-12-28 | 2018-12-28 | Sensor calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209745909U (en) |
-
2018
- 2018-12-28 CN CN201822235076.9U patent/CN209745909U/en active Active
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