CN212274972U - Large capacity sensor calibration air chamber frame and calibrating device - Google Patents
Large capacity sensor calibration air chamber frame and calibrating device Download PDFInfo
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- CN212274972U CN212274972U CN202020918172.8U CN202020918172U CN212274972U CN 212274972 U CN212274972 U CN 212274972U CN 202020918172 U CN202020918172 U CN 202020918172U CN 212274972 U CN212274972 U CN 212274972U
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Abstract
The utility model provides a large capacity sensor calibration air chamber frame, including hollow tube body, connecting seat, gland, first sealing ring and stifled piece, hollow tube body upper end is equipped with at least one air inlet, hollow tube body lower extreme is equipped with at least one gas outlet, it has a plurality of inspection holes to open on the hollow tube body lateral wall; the connecting seat is installed on the inspection hole of cavity body, and the gland passes through threaded connection on the connecting seat, first sealing ring sets up on the pressfitting face between gland and the connecting seat. The sensor to be measured penetrates through the first hole body of the connecting seat and the second hole body of the gland, and when the gland is screwed tightly, the first sealing ring is squeezed to deform, and then the inner ring and the periphery of the sensor are squeezed and sealed; and (4) replacing the detection hole with a blocking piece at the detection hole without the sensor. The calibration device can calibrate a plurality of sensors synchronously, greatly saves the calibration time, and can also save the total usage of an air source.
Description
Technical Field
The utility model relates to a sensor calibration technical field, concretely relates to large capacity sensor calibration air chamber frame and calibrating device.
Background
Calibration of a sensor refers to applying a standard measurand to the sensor and then adjusting certain components or software parameters of the sensor so that the output of the sensor corresponds exactly to the measurand. At present, the calibration of a water quality sensor is generally that a sensor to be measured sequentially extends into an air chamber with certain gas concentration for calibration, and only one sensor can be calibrated at a time, so that the efficiency is low.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a large capacity sensor calibration air chamber frame and calibrating device.
In order to achieve the above object, the technical solution of the present invention is: a high capacity sensor calibration plenum frame comprising:
the device comprises a hollow pipe body, a detection device and a detection device, wherein the hollow pipe body is vertically arranged, at least one air inlet is arranged at the upper end of the hollow pipe body, at least one air outlet is arranged at the lower end of the hollow pipe body, and a plurality of detection holes are formed in the side wall of the hollow pipe body;
the connecting seat is arranged on the detection hole of the hollow pipe body, and a first hole body matched with the outer diameter of the sensor to be calibrated is arranged in the center of the connecting seat;
the gland is connected to the connecting seat through threads, and a second hole body matched with the outer diameter of the sensor to be calibrated is arranged in the center of the gland;
the first sealing ring is arranged on a pressing surface between the pressing cover and the connecting seat;
the outer diameter of the plug is matched with the inner diameter of the second hole body, and the plug is installed in the center hole body where the gland of the sensor to be calibrated and the connecting seat are not placed.
Compared with the prior art, the utility model, a plurality of detection holes are arranged on the hollow pipe body, the sensor to be detected is arranged in the first hole body of the connecting seat and the second hole body of the gland in a penetrating way, when the gland is screwed, the first sealing ring is extruded to cause the inner ring to be tightly extruded and sealed with the periphery of the sensor after the first sealing ring is deformed; and (4) replacing the detection hole with a blocking piece at the detection hole without the sensor. Because the average molecular weight of the detection gas that lets in is lighter than the air, the upper portion air inlet through the hollow body admits air and the lower part gas outlet is given vent to anger, can let in the detection gas of standard concentration in the hollow body fast, can calibrate in step to a plurality of sensors, has practiced thrift the calibration man-hour greatly, also can practice thrift the total use amount of air supply simultaneously.
Further, the connecting seat is bonded on the edge of the outer opening of the detection hole in the hollow pipe body through a colloid.
Further, the edge of the outer opening of the detection hole of the hollow pipe body is provided with an inner concave part, and the outer diameter of the inner concave part is matched with the outer diameter of the root part of the connecting seat.
Adopt above-mentioned preferred scheme, make simply, can install the connecting seat fast conveniently.
Further, the connecting seat is connected in the detection hole of the hollow pipe body through threads.
Adopt above-mentioned preferred scheme, can be through changing the calibration of connecting seat and the gland with the sensor of different external diameter sizes of adaptation in different apertures.
Further, the horizontal cross-sectional profile of the hollow pipe body is square, and the detection hole is formed in each side face of the hollow pipe body.
Adopt above-mentioned preferred scheme, the installation face of connecting seat is the plane, makes things convenient for the contour machining of connecting seat.
Further, the number of air inlets is 2, and 2 air inlets are distributed in pairs of angles, and the number of air outlets is 2, and 2 air outlets are distributed in pairs of angles.
By adopting the preferable scheme, the air inlet uniformity of the inner cavity of the hollow pipe body is improved.
Further, still include temperature sensor, the cavity body upper end is equipped with and is used for installing temperature sensor's mounting hole.
By adopting the preferable scheme, the temperature of the gas in the hollow pipe body is detected through the temperature sensor, the temperature coefficient compensation is carried out, and the calibration accuracy is improved.
Furthermore, a movable frame with rollers is arranged below the hollow pipe body.
Adopt above-mentioned preferred scheme, make things convenient for the removal of calibration air chamber frame.
A calibration device, comprising:
a gas source;
the air source is connected to an air inlet of the high-capacity sensor calibration air chamber frame through a pipeline;
the air outlet pipeline is connected to an air outlet of the high-capacity sensor calibration air chamber frame, and an air outlet control valve is arranged on the air outlet pipeline;
and the calibration controller is in signal connection with the sensor to be calibrated.
By adopting the technical scheme, because a plurality of sensors can be installed on the high-capacity sensor calibration air chamber frame, all the sensors can be connected to the calibration controller for synchronous calibration, and the calibration efficiency of the sensors is improved.
Further, the air source comprises a first air source and a second air source, the first air source is connected to the first flow control valve through a pipeline, the second air source is connected to the second flow control valve through a pipeline, air outlets of the first flow control valve and the second flow control valve are respectively communicated to a mixing pipeline through pipelines, and the mixing pipeline is connected to an air inlet of the high-capacity sensor calibration air chamber frame.
By adopting the preferable scheme, the proportion of the first gas source and the second gas source can be adjusted by controlling the first flow control valve and the second flow control valve, so that the configuration of mixed gas with different proportions is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a top view of an embodiment of the present invention;
fig. 3 is a partially enlarged view of a portion a in fig. 1.
Names of corresponding parts represented by numerals and letters in the drawings:
10-a hollow tube body; 101-an air inlet; 102-an air outlet; 103-detection holes; 104-mounting holes; 20-a connecting seat; 201-a first porous body; 30-pressing cover; 301-a second porous body; 40-a first sealing ring; 50-a plug; 60-moving rack.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
1-3, a high capacity sensor calibration plenum frame, comprising:
the detection device comprises a hollow pipe body 10 which is vertically arranged, wherein the upper end of the hollow pipe body 10 is provided with at least one air inlet 101, the lower end of the hollow pipe body 10 is provided with at least one air outlet 102, and the side wall of the hollow pipe body 10 is provided with a plurality of detection holes 103;
the connecting base 20 is installed on the detection hole 103 of the hollow pipe body 10, and the center of the connecting base 20 is provided with a first hole body 201 matched with the outer diameter of the sensor to be calibrated;
the gland 30 is connected to the connecting seat 20 through threads, and a second hole body 301 matched with the outer diameter of the sensor to be calibrated is arranged in the center of the gland 30;
a first sealing ring 40 provided on a press-fit surface between the press cover 30 and the coupling seat 20;
the outer diameter of the plug 50 is matched with the inner diameter of the second hole body 301, and the plug 50 is installed in a central hole body where a gland of a sensor to be calibrated and a connecting seat are not placed.
The beneficial effect of adopting above-mentioned technical scheme is: the hollow pipe body is provided with a plurality of detection holes, the sensor to be detected is arranged in the first hole body of the connecting seat and the second hole body of the gland in a penetrating manner, and when the gland is screwed tightly, the first sealing ring is squeezed to deform, and then the inner ring is tightly squeezed and sealed with the periphery of the sensor; and (4) replacing the detection hole with a blocking piece at the detection hole without the sensor. Because the average molecular weight of the detection gas that lets in is lighter than the air, the upper portion air inlet through the hollow body admits air and the lower part gas outlet is given vent to anger, can let in the detection gas of standard concentration in the hollow body fast, can calibrate in step to a plurality of sensors, has practiced thrift the calibration man-hour greatly, also can practice thrift the total use amount of air supply simultaneously.
In other embodiments of the present invention, the connecting seat 20 is adhered to the outer edge of the detecting hole 103 on the hollow tube 10 by glue. The edge of the outer opening of the hollow pipe body detection hole 103 is provided with an inner concave part, and the outer diameter of the inner concave part is matched with the outer diameter of the root part of the connecting seat 20. The beneficial effect of adopting above-mentioned technical scheme is: the manufacture is simple, and the connecting seat can be installed quickly and conveniently.
In other embodiments of the present invention, the connecting seat 20 is screwed into the detecting hole 103 of the hollow pipe body. The beneficial effect of adopting above-mentioned technical scheme is: the calibration of the sensor with different outer diameter sizes can be adapted by replacing the connecting seat and the gland with different apertures.
In other embodiments of the present invention, the horizontal cross-section of the hollow pipe 10 is square, and each side of the hollow pipe 10 is provided with a detection hole 103. The beneficial effect of adopting above-mentioned technical scheme is: the installation face of connecting seat is the plane, makes things convenient for the forming process of connecting seat.
As shown in fig. 2, in other embodiments of the present invention, the number of air inlets 101 is 2, 2 air inlets 101 are distributed in diagonal pairs, the number of air outlets 102 is 2, and 2 air outlets 102 are distributed in diagonal pairs. The beneficial effect of adopting above-mentioned technical scheme is: improve the air inlet uniformity of the inner cavity of the hollow pipe body.
As shown in fig. 2, in other embodiments of the present invention, the present invention further comprises a temperature sensor, and a mounting hole 104 for mounting the temperature sensor is formed at the upper end of the hollow pipe body. The beneficial effect of adopting above-mentioned technical scheme is: the temperature sensor is used for detecting the temperature of the gas in the hollow pipe body, temperature coefficient compensation is carried out, and the calibration accuracy is improved.
As shown in fig. 1, in other embodiments of the present invention, a movable frame 60 having rollers is provided under the hollow tube 10. The beneficial effect of adopting above-mentioned technical scheme is: the movement of the air chamber frame is convenient to calibrate.
A calibration device, comprising:
a gas source;
the air source is connected to an air inlet of the high-capacity sensor calibration air chamber frame through a pipeline;
the air outlet pipeline is connected to an air outlet of the high-capacity sensor calibration air chamber frame, and an air outlet control valve is arranged on the air outlet pipeline;
and the calibration controller is in signal connection with the sensor to be calibrated.
The beneficial effect of adopting above-mentioned technical scheme is: because a plurality of sensors can be installed on the large-capacity sensor calibration air chamber frame, all the sensors can be connected to the calibration controller for synchronous calibration, and the calibration efficiency of the sensors is improved.
In other embodiments of the present invention, the air source includes a first air source and a second air source, the first air source is connected to the first flow control valve through a pipeline, the second air source is connected to the second flow control valve through a pipeline, the air outlets of the first flow control valve and the second flow control valve are respectively communicated to the mixing pipeline through a pipeline, and the mixing pipeline is reconnected to the air inlet of the high capacity sensor calibration air chamber frame. The beneficial effect of adopting above-mentioned technical scheme is: the proportion of the first air source and the second air source can be adjusted by controlling the first flow control valve and the second flow control valve, so that the configuration of mixed gas with different proportions can be realized.
The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (10)
1. A high capacity sensor calibration plenum frame, comprising:
the device comprises a hollow pipe body, a detection device and a detection device, wherein the hollow pipe body is vertically arranged, at least one air inlet is arranged at the upper end of the hollow pipe body, at least one air outlet is arranged at the lower end of the hollow pipe body, and a plurality of detection holes are formed in the side wall of the hollow pipe body;
the connecting seat is arranged on the detection hole of the hollow pipe body, and a first hole body matched with the outer diameter of the sensor to be calibrated is arranged in the center of the connecting seat;
the gland is connected to the connecting seat through threads, and a second hole body matched with the outer diameter of the sensor to be calibrated is arranged in the center of the gland;
the first sealing ring is arranged on a pressing surface between the pressing cover and the connecting seat;
the outer diameter of the plug is matched with the inner diameter of the second hole body, and the plug is installed in the center hole body where the gland of the sensor to be calibrated and the connecting seat are not placed.
2. The mass sensor calibration plenum frame of claim 1, wherein said attachment base is glued to the outer mouth edge of the inspection hole in said hollow tube body by glue.
3. The high capacity sensor calibration air chamber frame of claim 2, wherein the edge of the outer opening of the detection hole of the hollow tube body is provided with an inner concave part, and the outer diameter of the inner concave part is matched with the outer diameter of the root part of the connecting seat.
4. The mass sensor calibration plenum rack of claim 1, wherein the connection base is threaded into a detection hole of the hollow tube body.
5. The mass sensor calibration plenum frame of claim 1, wherein the horizontal cross-sectional profile of said hollow tube body is square, said detection holes being provided on each side of said hollow tube body.
6. The mass sensor calibration plenum frame of claim 5, wherein the number of air inlets is 2, 2 air inlets are angularly distributed in pairs, the number of air outlets is 2, and 2 air outlets are angularly distributed in pairs.
7. The mass sensor calibration plenum frame of claim 6, further comprising a temperature sensor, wherein the hollow tube body is provided at an upper end thereof with a mounting hole for mounting the temperature sensor.
8. The mass sensor calibration plenum frame of claim 1, wherein a moving frame with rollers is provided below said hollow tube.
9. A calibration device, comprising:
a gas source;
the mass sensor calibration plenum of any of claims 1-8, said air supply being plumbed to an air inlet of said mass sensor calibration plenum;
the air outlet pipeline is connected to an air outlet of the high-capacity sensor calibration air chamber frame, and an air outlet control valve is arranged on the air outlet pipeline;
and the calibration controller is in signal connection with the sensor to be calibrated.
10. The calibration device according to claim 9, wherein the air source comprises a first air source and a second air source, the first air source is connected to the first flow control valve through a pipeline, the second air source is connected to the second flow control valve through a pipeline, the air outlets of the first flow control valve and the second flow control valve are respectively communicated to a mixing pipeline through a pipeline, and the mixing pipeline is connected to the air inlet of the mass sensor calibration air chamber frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020918172.8U CN212274972U (en) | 2020-05-27 | 2020-05-27 | Large capacity sensor calibration air chamber frame and calibrating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020918172.8U CN212274972U (en) | 2020-05-27 | 2020-05-27 | Large capacity sensor calibration air chamber frame and calibrating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109510A (en) * | 2021-03-25 | 2021-07-13 | 山东瑶安电子科技发展有限公司 | Calibration device for gas sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109510A (en) * | 2021-03-25 | 2021-07-13 | 山东瑶安电子科技发展有限公司 | Calibration device for gas sensor |
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