CN219224553U - Portable hydrogen sensor probe - Google Patents
Portable hydrogen sensor probe Download PDFInfo
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- CN219224553U CN219224553U CN202320694129.1U CN202320694129U CN219224553U CN 219224553 U CN219224553 U CN 219224553U CN 202320694129 U CN202320694129 U CN 202320694129U CN 219224553 U CN219224553 U CN 219224553U
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Abstract
The utility model belongs to the field of sensor probes, and particularly discloses a portable hydrogen sensor probe, which comprises: the sensor comprises a sensor main body, wherein one end of the sensor main body is connected with a sensor probe; the sensor probe comprises a switch door, a detection mechanism and a control system; the detection mechanism comprises a first detection mechanism and a second detection mechanism; the switch door comprises a first switch door and a second switch door, the first switch door is arranged at the lower end of the right side of the first detection mechanism, and the second switch door is arranged on the right side above the second detection mechanism; the first switch door, the second switch door and the detection mechanism are electrically connected with a control system; the control system is used for controlling the detection mechanism to detect hydrogen and controlling the state of opening and closing the door. The device generated by the technical scheme has the characteristics of long service life, high sensitivity and high accuracy in hydrogen gas detection.
Description
Technical Field
The utility model belongs to the field of sensor probes, and particularly relates to a portable hydrogen sensor probe.
Background
Hydrogen is used as a clean high-energy fuel and important reducing gas, and is widely applied to the fields of aerospace, military national defense, metallurgical chemical industry, green energy sources and the like, however, the inflammable and explosive property brings serious potential safety hazards to the storage and use of hydrogen. Conventional hydrogen sensors based on electrochemical or semiconductor conductivity may generate electric sparks during operation, easily form a great safety hazard, and are susceptible to electromagnetic interference, thus being difficult to adapt to complex environments.
The thermal conductivity type hydrogen sensor can determine the concentration of hydrogen in the binary mixture by measuring the thermal conductivity of the gas to be measured and comparing it to a reference gas. Two identical thermistors are used to convert the thermal conductivity signal into an electrical signal, one resistor being in contact with the gas to be measured and the other being in contact with the reference gas. The temperature (resistance) of the thermistor depends on the thermal conductivity of the surrounding gas, which is proportional to the hydrogen concentration in the mixed gas. The thermal conductivity type hydrogen sensor is relatively very stable, has long service life, is particularly suitable for detecting high-concentration hydrogen, but has the problem of poor sensitivity. While other types of sensors, while sensitive, have a short lifetime.
Disclosure of Invention
The utility model aims to provide a portable hydrogen sensor probe which is used for solving the problems existing in the prior art.
To achieve the above object, the present utility model provides a portable hydrogen sensor probe comprising:
the sensor comprises a sensor main body, wherein one end of the sensor main body is connected with a sensor probe;
the sensor probe comprises a switch door, a detection mechanism and a control system 5;
the door opening and closing device comprises a door opening and closing device, a door opening and closing device and a door opening and closing device, wherein the door opening and closing device comprises a first door opening and closing device 1 and a second door opening and closing device 2, and the detection mechanism comprises a first detection mechanism and a second detection mechanism;
the first switch door 1 is arranged at the lower end of the right side of the first detection mechanism, and the second switch door 2 is arranged at the right side above the second detection mechanism;
the first switch door 1, the second switch door 2 and the detection mechanism are electrically connected with a control system 5;
the control system 5 is used for controlling the detection mechanism to detect hydrogen and controlling the state of opening and closing the door.
Optionally, the first detection mechanism includes: a first electric heating element 3 and a second electric heating element 4;
wherein the first electric heating element 3 and the second electric heating element 4 are both electrically connected to the control system 5.
Optionally, the second detection mechanism includes: the optical fiber, the optical fiber collimator 6, the reflecting film 7, the double-sided polished quartz plate 8 and the metal palladium film 9;
wherein the reflecting film 7 and the metal palladium film 9 are arranged on two sides of the double-sided polished quartz plate 8; one end of the optical fiber collimator 6 is connected with the reflecting film 7, and the other end of the optical fiber collimator 6 is connected with the optical fiber.
Optionally, the sensor body includes: the control processing unit, the laser, the optical fiber beam combiner, the optical detector and the sensor probe;
the sensor probe is connected with the optical fiber beam combiner, the output end of the optical fiber beam combiner is connected with the input end of the optical detector, the output end of the optical detector is connected with the input end of the control processing unit, the output end of the control processing unit is connected with the input end of the laser, and the output end of the laser is connected with the input end of the optical fiber beam combiner.
The utility model has the technical effects that:
according to the sensor provided by the utility model, by combining the two types of probes, when high-concentration hydrogen is detected, the detection can be finished through the first detection mechanism, and data are transmitted into the sensor through the control system; when facing low concentration hydrogen, because the thermal conductivity sensor detects sensitivity lower, judge the data of first detection mechanism through control system to make first switch door close through control switch door, open the second switch door, detect through the second detection mechanism that sensitivity is high. The sensor probe provided by the utility model has the characteristics of long service life, high sensitivity and high accuracy in hydrogen gas detection, and the signal detection processing method and system are simple in structure, outstanding in anti-interference capability and have engineering practical values.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a system block diagram in an embodiment of the utility model;
FIG. 2 is a schematic diagram of a sensor structure according to an embodiment of the present utility model;
description of the reference numerals: 1-first switch door, 2-second switch door, 3-first electric heating element, 4-second electric heating element, 5-control system, 6-fiber collimator, 7-reflection film, 8-double-sided polishing film, 9 metal palladium film.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Example 1
As shown in fig. 1-2, there is provided a portable hydrogen sensor probe in this embodiment, including:
the sensor comprises a sensor main body, wherein one end of the sensor main body is connected with a sensor probe;
the sensor probe comprises a switch door, a detection mechanism and a control system 5;
the door opening and closing device comprises a door opening and closing device, a door opening and closing device and a door opening and closing device, wherein the door opening and closing device comprises a first door opening and closing device 1 and a second door opening and closing device 2, and the detection mechanism comprises a first detection mechanism and a second detection mechanism;
the first switch door 1 is arranged at the lower end of the right side of the first detection mechanism, and the second switch door 2 is arranged at the right side above the second detection mechanism;
the first switch door 1, the second switch door 2 and the detection mechanism are electrically connected with a control system 5;
the control system 5 is used for controlling the detection mechanism to detect hydrogen and controlling the state of opening and closing the door.
In practice, the first detection mechanism comprises: a first electric heating element 3 and a second electric heating element 4;
wherein the first electric heating element 3 and the second electric heating element 4 are both electrically connected to the control system 5.
In practice, the second detection mechanism comprises: the optical fiber, the optical fiber collimator 6, the reflecting film 7, the double-sided polished quartz plate 8 and the metal palladium film 9;
wherein the reflecting film 7 and the metal palladium film 9 are arranged on two sides of the double-sided polished quartz plate 8; one end of the optical fiber collimator 6 is connected with the reflecting film 7, and the other end of the optical fiber collimator 6 is connected with the optical fiber.
In practice, the sensor body comprises: the control processing unit, the laser, the optical fiber beam combiner, the optical detector and the sensor probe;
the sensor probe is connected with the optical fiber beam combiner, the output end of the optical fiber beam combiner is connected with the input end of the optical detector, the output end of the optical detector is connected with the input end of the control processing unit, the output end of the control processing unit is connected with the input end of the laser, and the output end of the laser is connected with the input end of the optical fiber beam combiner.
The sensor probe provided by the embodiment can finish detection through the first detection mechanism when detecting high-concentration hydrogen by combining two types of probes, and transmits data into the sensor through the control system, when facing low-concentration hydrogen, the data of the first detection mechanism are judged through the control system due to lower detection sensitivity of the thermal conductivity sensor, the first switch door is closed by controlling the switch door, the second switch door is opened, the second detection mechanism with high sensitivity is used for detection, and the sensor probe provided by the embodiment has the characteristics of long service life, high sensitivity and high accuracy in hydrogen detection.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
Claims (4)
1. A portable hydrogen sensor probe, comprising:
the sensor comprises a sensor main body, wherein one end of the sensor main body is connected with a sensor probe;
the sensor probe comprises a switch door, a detection mechanism and a control system (5);
the door opening and closing device comprises a door opening and closing device and comprises a door opening and closing device, wherein the door opening and closing device comprises a first door opening and closing device (1) and a second door opening and closing device (2), and the detecting mechanism comprises a first detecting mechanism and a second detecting mechanism;
the first switch door (1) is arranged at the lower end of the right side of the first detection mechanism, and the second switch door (2) is arranged at the right side above the second detection mechanism;
the first switch door (1), the second switch door (2) and the detection mechanism are electrically connected with a control system (5);
the control system (5) is used for controlling the detection mechanism to detect hydrogen and controlling the state of opening and closing the door.
2. A portable hydrogen sensor probe according to claim 1, wherein,
the first detection mechanism includes: a first electric heating element (3) and a second electric heating element (4);
wherein the first electric heating element (3) and the second electric heating element (4) are both electrically connected with the control system (5).
3. A portable hydrogen sensor probe according to claim 1, wherein,
the second detection mechanism includes: the optical fiber, the optical fiber collimator (6), the reflecting film (7), the double-sided polished quartz plate (8) and the metal palladium film (9);
wherein the reflecting film (7) and the metal palladium film (9) are arranged at two sides of the double-sided polished quartz plate (8); one end of the optical fiber collimator (6) is connected with the reflecting film (7), and the other end of the optical fiber collimator (6) is connected with the optical fiber.
4. A portable hydrogen sensor probe according to claim 1, wherein,
the sensor body includes: the control processing unit, the laser, the optical fiber beam combiner, the optical detector and the sensor probe;
the sensor probe is connected with the optical fiber beam combiner, the output end of the optical fiber beam combiner is connected with the input end of the optical detector, the output end of the optical detector is connected with the input end of the control processing unit, the output end of the control processing unit is connected with the input end of the laser, and the output end of the laser is connected with the input end of the optical fiber beam combiner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320694129.1U CN219224553U (en) | 2023-03-31 | 2023-03-31 | Portable hydrogen sensor probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320694129.1U CN219224553U (en) | 2023-03-31 | 2023-03-31 | Portable hydrogen sensor probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219224553U true CN219224553U (en) | 2023-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320694129.1U Active CN219224553U (en) | 2023-03-31 | 2023-03-31 | Portable hydrogen sensor probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219224553U (en) |
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- 2023-03-31 CN CN202320694129.1U patent/CN219224553U/en active Active
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