CN210571082U - Detection apparatus for location fiber grating high temperature sensor measurement station position - Google Patents
Detection apparatus for location fiber grating high temperature sensor measurement station position Download PDFInfo
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- CN210571082U CN210571082U CN201921737460.7U CN201921737460U CN210571082U CN 210571082 U CN210571082 U CN 210571082U CN 201921737460 U CN201921737460 U CN 201921737460U CN 210571082 U CN210571082 U CN 210571082U
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Abstract
The utility model provides a detection apparatus for location fiber grating high temperature sensor measurement station position. The detection device comprises a linear displacement table, a hollow annular heating ring, a heating driving module, a left support frame and a right support frame; the hollow annular heating ring is fixed on a moving platform of the linear displacement table through a fixed support, and the heating driving module drives the annular heating ring to heat to form a stable temperature field; the left and right support frames and the linear displacement platform are arranged on the same straight line, the fiber grating high-temperature sensor is erected above the linear displacement platform after penetrating through the left and right support frames, and then the temperature information of each measuring point of the fiber grating high-temperature sensor is collected and processed through the fiber grating temperature analysis module when the hollow annular heating coil generates heat and moves along the fiber grating high-temperature sensor and is output to the terminal. The utility model discloses can replace not unidimensional subassembly in order to be adapted to not unidimensional fiber grating high temperature sensor in a flexible way, the testing result is understandable directly perceivedly, and positioning accuracy is high.
Description
Technical Field
The patent of the utility model relates to a sensor measurement station location technical field, concretely relates to detection device of location fiber grating high temperature sensor measurement station position can be used to various single-measurement station of accurate positioning or multiple measuring point fiber grating high temperature sensor's measurement station position.
Background
The fiber grating high-temperature sensor takes the fiber grating as a temperature sensing element, fully exerts the advantages of small volume, high sensitivity, corrosion resistance, electromagnetic interference resistance and the like of the fiber grating, and can meet the temperature measurement requirements in extremely severe environments such as aerospace, petrochemical industry, nuclear industry and the like.
The temperature measurement requirements in these special fields all place high demands on the dense distribution of the measurement points. The scientific distribution of the measuring point positions is beneficial to reducing the temperature representation of the whole or key parts of the measured object, thereby ensuring the normal work of the system or guiding the design improvement of the structure and the assembly, and therefore, the high requirement is provided for the accurate positioning of the measuring point of the sensor.
At present, two schemes of excimer laser ultraviolet exposure and femtosecond laser pulse direct writing are mainly adopted for preparing the fiber bragg grating. In any scheme, the writing position is controlled by a mechanical means when the fiber grating is prepared, and the actual position of the fiber grating cannot be directly distinguished after the preparation is finished; and after the fiber bragg grating is packaged into a high-temperature sensor, the positioning difficulty of the temperature measuring point is further increased.
According to the past working experience, an effective detection means for the measuring point position of the fiber bragg grating high-temperature sensor is lacked at present, and whether the measuring point position conforms to the design requirement cannot be accurately judged, so that accurate feedback of key position temperature information when the fiber bragg grating high-temperature sensor is applied is restricted.
Disclosure of Invention
In order to solve the technical problem that the fiber grating high temperature sensor measurement station position lacks the location detection means, the utility model provides a detection device of location fiber grating high temperature sensor measurement station position, this detection device can pinpoint the measurement station position of the fiber grating high temperature sensor of arbitrary measurement station quantity to judge whether the measurement station position accords with the designing requirement, provide the guarantee for the accurate feedback of key position temperature information.
In order to solve the technical scheme, the utility model provides a technical scheme: the detection device for positioning the measuring point position of the fiber bragg grating high-temperature sensor is characterized in that: the detection device comprises a linear displacement table, a heating device, a sensor support frame and a fiber bragg grating temperature processing module;
the heating device comprises a hollow annular heating ring and a heating driving module, the inner diameter of the hollow annular heating ring is larger than the outer diameter of the fiber grating high-temperature sensor to be detected, the hollow annular heating ring is fixed on a moving platform of the linear displacement platform through a fixed support, and the hollow annular heating ring is driven to horizontally move along the linear displacement platform under the movement of the moving platform; the heating driving module is connected with the hollow annular heating ring through a signal wire and drives the annular heating ring to heat to form a stable temperature field;
the sensor support frame comprises a left support frame and a right support frame, the left support frame and the right support frame are arranged on the same straight line with the linear displacement table, the fiber bragg grating high-temperature sensor to be detected is erected above the linear displacement table after penetrating through the hollow annular heating ring, and the outer wall of the fiber bragg grating high-temperature sensor to be detected is not in contact with the inner wall of the hollow annular heating ring;
the fiber bragg grating temperature analysis module is connected with a signal output end of the fiber bragg grating high-temperature sensor to be detected through a signal wire, and when the hollow annular heating coil heats and moves along the fiber bragg grating high-temperature sensor to be detected, the fiber bragg grating temperature analysis module is used for collecting and processing temperature information of each measuring point of the fiber bragg grating high-temperature sensor and outputting the temperature information to the terminal.
The utility model discloses better technical scheme: the linear displacement platform, the left support frame and the right support frame are fixedly installed on the optical anti-seismic platform through screws, and the detection device further comprises a motion control module in signal connection with the linear displacement platform.
The utility model discloses better technical scheme: the hollow annular heating ring is a cast aluminum heating ring or a nickel-chromium alloy heating ring or a copper-nickel alloy heating ring or a manganese-copper alloy, the heating driving module is a high-frequency current emitter, and the temperature field temperature is controlled by adjusting the current intensity.
The utility model discloses further technical scheme: the fixing support comprises a three-dimensional adjusting base and a heat source clamp, and the heat source clamp is used for clamping the hollow annular heating ring and is tightly pressed and fixed through a screw; the bottom of the heat source clamp is fixed on a three-dimensional adjusting base through a bolt, the three-dimensional adjusting base is fixed on a moving platform of a linear displacement table through a bolt, and the central axis of the hollow annular heating ring is coincided with the central axis of the fiber bragg grating high-temperature sensor to be detected under the adjustment of the three-dimensional adjusting base.
The utility model discloses further technical scheme: the left support frame and the right support frame respectively comprise a sensor clamp and a height-adjustable support base, the sensor clamp is used for clamping the fiber grating high-temperature sensor to be detected and fixing the fiber grating high-temperature sensor in a screw jacking mode, and the base of the sensor clamp is fixed on the height-adjustable support base through a screw; the height-adjustable support base is a vertical adjusting support or a three-dimensional adjusting support, and the left support frame and the right support frame are respectively adjusted to be at the same horizontal height through the height-adjustable support base.
The utility model discloses better technical scheme: the fiber grating temperature processing module adopts a wavelength demodulator, the spectral range of the fiber grating temperature processing module is 1525-1575 nm or 1510-1595 nm, the number of physical channels is 1 or 4 or 8 or 16 or 64, the wavelength precision is +/-2 pm, the scanning frequency is 1-1 Khz, the accurate positioning of a temperature measuring point is realized by measuring the position corresponding to the reflection wavelength variation peak value of the fiber grating high-temperature sensor to be detected, and the acquired and analyzed data is displayed through a computer or a mobile phone or a panel of a terminal.
The utility model discloses better technical scheme: the fiber bragg grating high-temperature sensor to be detected is erected on a central axis of the hollow annular heating ring through the left support frame and the right support frame.
The utility model discloses better technical scheme: the linear displacement platform adopts a one-dimensional linear displacement platform with the stroke of 2000mm and the precision of 0.1mm, and the motor drives the moving platform to move along a straight line.
The utility model discloses better technical scheme: the fiber bragg grating high-temperature sensor to be detected is a fiber bragg grating high-temperature sensor with various single measuring points or multiple measuring points, and when the fiber bragg grating high-temperature sensor to be detected is a fiber bragg grating high-temperature sensor with multiple measuring points, the moving distance of the hollow annular heating ring on the linear displacement table is larger than the distance between the measuring points.
The heat source of the utility model is a hollow annular heating ring, which has the function of generating a constant temperature field in a certain area, and the temperature of the temperature field can be automatically adjusted by a heating driving module; the aperture and the axis length of the annular heating ring can be designed and manufactured as required, the aperture needs to ensure that the armored pipe at the temperature measuring section of the fiber grating high-temperature sensor freely penetrates through the aperture, and the axis length depends on the effective length of the measuring point of the fiber grating high-temperature sensor. The moving range of the linear displacement table can be designed and manufactured according to the length of the sensor, and the moving speed and the moving precision of the linear displacement table can be adjusted through the motion control module.
The utility model discloses a theory of operation: a constant temperature field which is obviously higher than the ambient temperature is generated in a certain area through a heat source, the heat source is guided by a linear displacement platform to sequentially pass through each temperature measuring point of the fiber grating high-temperature sensor, and the reflection center wavelength value of each temperature measuring point is obtained through a fiber grating wavelength demodulator. When the heat source is close to the temperature measuring point, the reflection center wavelength value of the measuring point is gradually increased, and when the heat source reaches the center position of the temperature measuring point, the reflection center wavelength value of the measuring point reaches the maximum value. The accurate positioning of the temperature measuring point is realized by measuring the position corresponding to the peak value of the reflection center wavelength of the fiber bragg grating high-temperature sensor.
The testing device of the utility model is convenient to build and simple to operate, and can flexibly replace components with different sizes to adapt to fiber bragg grating high-temperature sensors with different sizes; the detection result is intuitive and easy to understand, and the positioning precision is high; an effective means is provided for detecting the measuring point position of the fiber bragg grating high-temperature sensor, and whether the actual position of the measuring point is consistent with the design parameters or not can be verified.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 and 3 are enlarged schematic views of the fixing bracket of the hollow annular heating ring of the present invention;
FIG. 4 is a schematic diagram of a three-dimensionally adjustable sensor support according to the present invention;
fig. 5 is a schematic diagram of the structure of the sensor support frame of the present invention, which can only be adjusted in height.
In the figure: the device comprises a fiber bragg grating temperature analysis module, a linear displacement table, a driving moving platform, a motor, a hollow annular heating ring, a heating driving module, a fixing support, a three-dimensional adjusting base, a heat source clamp, a left support frame, a sensor clamp, a height adjustable support frame base, a right support frame, a fiber bragg grating high-temperature sensor to be detected, a motion control module and an optical anti-seismic platform, wherein the fiber bragg grating temperature analysis module is 2, the linear displacement table is 2-1, the motor is 2-2, the hollow annular heating ring is 3, the heating driving module is 4, the fixing support frame is 5-1, the three-dimensional adjusting base is.
Detailed Description
The present invention will be further explained with reference to the drawings and examples. Fig. 1 to 4 are drawings of the embodiment, which are drawn in a simplified manner and are only used for clearly and concisely illustrating the purpose of the embodiment of the present invention. The following detailed description of the embodiments of the present invention is presented in the drawings and is not intended to limit the scope of the invention as claimed. 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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The embodiment provides a detection device for positioning a measurement point position of a fiber grating high-temperature sensor, as shown in fig. 1, the detection device comprises a linear displacement table 2, a heating device, a sensor support frame and a fiber grating temperature analysis module 1. Linear displacement platform 2, left branch strut 6 and right branch strut 7 are all through screw fixed mounting on optics antidetonation platform 10, and this detection device still includes the motion control module 9 with 2 signal connection of linear displacement platform, and motion control module 9 chooses for use with 2 assorted controllers of linear displacement platform. The heating device comprises a hollow annular heating ring 3 and a heating driving module 4, the hollow annular heating ring 3 is selected from a cast aluminum heating ring, the diameter of a hollow opening is 5mm, the axial length of a heating area is 5mm, and the heating device has the advantages of long service life, good constant temperature performance, strong mechanical performance, corrosion resistance and the like. The heating driving module 4 adopts an induction heating adjustable power supply device, can directly adopt a high-frequency current emitter, is connected with the hollow annular heating ring 3 through a signal wire, and drives the hollow annular heating ring 3 to generate a constant temperature field which is obviously higher than the ambient temperature. The linear displacement platform 2 adopts a one-dimensional linear displacement platform with the stroke of 2000mm and the precision of 0.1mm, and the motor 2-2 drives the moving platform 2-1 to move along a straight line.
In the embodiment of the detection device for positioning the measuring point position of the fiber bragg grating high-temperature sensor, as shown in fig. 1 to 3, a hollow annular heating ring 3 is fixed on a moving platform 2-1 of a linear displacement platform 2 through a fixed support 5, and the hollow annular heating ring 3 is driven to horizontally move along the linear displacement platform 2 under the movement of the moving platform 2-1. The fiber bragg grating high-temperature sensor 8 to be detected penetrates through the hollow annular heating ring 3 and then is erected above the linear displacement table 2 through the sensor supporting frame, the inner diameter of the hollow annular heating ring 3 is larger than the outer diameter of the fiber bragg grating high-temperature sensor 8 to be detected, and after the fiber bragg grating high-temperature sensor 8 to be detected penetrates through the hollow annular heating ring 3, the outer wall of the fiber bragg grating high-temperature sensor 8 to be detected is not in contact with the inner wall of the hollow annular heating ring 3 in the detection process. The fiber grating temperature analysis module 1 is connected with a signal output end of a fiber grating high-temperature sensor 8 to be detected through a signal wire, when the hollow annular heating coil 3 generates heat and moves along the fiber grating high-temperature sensor 8 to be detected, temperature information of each measuring point of the fiber grating high-temperature sensor is collected and processed through the fiber grating temperature analysis module 1 and is output to a computer of a terminal, and collected and analyzed data is displayed through the computer.
In the detection device for positioning the measurement point position of the fiber bragg grating high-temperature sensor in the embodiment, as shown in fig. 1, the sensor support frame comprises a left support frame 6 and a right support frame 7, and the left support frame 6, the right support frame 7 and the linear displacement table 2 are arranged on the same straight line. As shown in fig. 4, the left support frame 6 and the right support frame 7 both comprise a sensor clamp 6-1 and a height-adjustable support base 6-2, the sensor clamp 6-1 can adopt the existing sensor clamp device, the pipe diameter of the armored pipe can be clamped to be phi 1 mm-phi 4mm, the fiber grating high-temperature sensor 8 to be detected can pass through the sensor clamp 6-1 and then be clamped by the clamp and be fixed by being tightly pressed by a screw, the base of the sensor clamp 6-1 is fixed on the height-adjustable support base 6-2 by a screw, the height-adjustable support base 6-2 in the embodiment can adopt a three-dimensional adjusting support, or as shown in fig. 5, a support structure with independent height adjustment is adopted, the height between the upper support plate and the lower support plate is adjusted by an adjusting rod, the axis of the fiber grating high-temperature sensor 6 is adjusted to be in the axis with the hollow annular heating ring 3 by the left support frame and the same level.
In the detection device for positioning the measurement point position of the fiber grating high-temperature sensor in the embodiment, as shown in fig. 4, the fixing support 5 comprises a three-dimensional adjusting base 5-1 and a heat source clamp 5-2, the heat source clamp can adopt a clamp of an existing cylindrical object, and the heat source clamp can also adopt a clamp with the same structure as the sensor clamp 6-1, and can clamp a hollow annular heating ring 3 sleeved outside a fiber grating high-temperature sensor 8 to be detected and tightly support and fix the hollow annular heating ring by a screw; the bottom of the heat source clamp 5-2 is fixed on the three-dimensional adjusting base 5-1 through bolts, the three-dimensional adjusting base 5-1 is an existing three-dimensional adjusting platform and can achieve adjustment in three directions of an X axis, a Y axis and a Z axis, the adjusting stroke in each direction is 10mm and is used for adjusting the position of the axis of the hollow annular heating ring 3 and ensuring that the axis of the hollow annular heating ring 3 and the axis of the fiber grating high-temperature sensor 8 to be detected keep the same horizontal height, the heat source clamp 5-2 is fixed on the moving platform 2-1 of the linear displacement platform 2 through bolts, and the axis of the hollow annular heating ring 3 and the axis of the fiber grating high-temperature sensor 8 to be detected coincide under the adjustment of the three-dimensional adjusting base 5-1.
The fiber grating temperature analysis module 1 in the embodiment adopts a wavelength demodulator, the spectral range of the fiber grating temperature analysis module is 1525-1575 nm or 1510-1595 nm, the number of physical channels is 1 or 4 or 8 or 16 or 64, the wavelength precision is +/-2 pm, the scanning frequency is 1-1 Khz, the accurate positioning of temperature measuring points is realized by measuring the positions corresponding to the variation peak values of the reflection center wavelength, and the acquired and analyzed data are displayed by a computer of a terminal. Each temperature measuring point feeds back a reflection center wavelength value through a wavelength demodulator, when the temperature rises, the reflection center wavelength becomes larger, otherwise, the reflection center wavelength becomes smaller, when a heat source approaches the temperature measuring point, the reflection center wavelength of the measuring point starts to become larger, when the heat source reaches the center of the temperature measuring point, the reflection center wavelength reaches a peak value, and the accurate positioning of the temperature is realized by measuring the position corresponding to the change peak value of the reflection center wavelength.
In the embodiment, the fiber grating high-temperature sensor 8 to be detected is a fiber grating high-temperature sensor with various single measuring points or multiple measuring points, and when the fiber grating high-temperature sensor 8 to be detected is a fiber grating high-temperature sensor with multiple measuring points, the moving distance of the hollow annular heating ring 3 on the linear displacement table 2 is greater than the distance between the measuring points.
In the embodiment of the utility model, all three-dimensional adjusting bases 5-1, heat source clamp 5-2, left support frame 6 and right support frame 7 and linear displacement platform 2 all adopt light aluminum alloy material.
The utility model discloses before the detection, at first cavity annular heating ring 3 is installed in heat source anchor clamps 5-2 of fixed bolster 5, and press from both sides it tightly through heat source anchor clamps 5-2, then will wait to detect fiber grating high temperature sensor 8 and pass cavity annular heating ring 3, both ends are passed left branch strut 6 respectively, the sensor anchor clamps 6-1 of right branch strut 7, and press from both sides it tightly through sensor anchor clamps 6-1, then adjust three-dimensional regulation base 5-1 and a left side respectively, the height-adjustable support base 6-2 of right branch strut is to cavity annular heating ring 3 and wait to detect fiber grating high temperature sensor 8 highly finely tune, make the axis of cavity annular heating ring 3 with wait to detect the coincidence of fiber grating high temperature sensor 8's axis, alright begin to detect, its utensil testing process is as follows:
the heating driving module 4 drives the hollow annular heating ring 3 to generate heat, and after a constant temperature field which is obviously higher than the ambient temperature is generated, the linear displacement table 2 guides the hollow annular heating ring 3 to sequentially pass through various temperature measuring points of the fiber bragg grating high-temperature sensor 8 to be detected. The current temperature values are fed back through the fiber bragg grating temperature analysis module 1 and are displayed on a computer. When the heat source 1 approaches a certain temperature measuring point, the current temperature value measured by the measuring point begins to increase; when the heat source 1 reaches the central position of the measuring point, the current temperature value measured by the measuring point reaches the maximum value; when the heat source leaves the central position of the measuring point, the current temperature value measured by the measuring point is reduced. When the current temperature value reaches the maximum value, the corresponding position of the heat source 1 is the central position of the temperature measuring point. The central position of the temperature measuring point can be positioned through the stroke scale on the linear displacement platform 2 or the position information displayed by the motion control module 9, then measuring point marks are made on the fiber bragg grating high-temperature sensor 8 to be detected, and the positioning measurement of the temperature measuring point is completed.
To sum up, for the utility model discloses an embodiment of listing, nevertheless the utility model discloses not only be limited to above-mentioned embodiment, as long as reach with any same or similar means the technical effect of the utility model, all should belong to the scope of the protection of the utility model.
Claims (9)
1. The utility model provides a detection apparatus for location fiber grating high temperature sensor measurement station position which characterized in that: the detection device comprises a linear displacement table (2), a heating device, a sensor support frame and a fiber bragg grating temperature analysis module (1);
the heating device comprises a hollow annular heating ring (3) and a heating driving module (4), the inner diameter of the hollow annular heating ring (3) is larger than the diameter of a fiber grating high-temperature sensor (8) to be detected, the hollow annular heating ring (3) is fixed on a moving platform (2-1) of the linear displacement platform (2) through a fixing support (5), and the hollow annular heating ring (3) is driven to horizontally move along the linear displacement platform (2) under the movement of the moving platform (2-1); the heating driving module (4) is connected with the hollow annular heating ring (3) through a signal wire and drives the annular heating ring to heat to form a stable temperature field;
the sensor support frame comprises a left support frame (6) and a right support frame (7), the left support frame (6) and the right support frame (7) are arranged on the same straight line with the linear displacement table (2), the fiber bragg grating high-temperature sensor (8) to be detected is erected above the linear displacement table (2) after penetrating through the hollow annular heating ring (3), and the outer wall of the fiber bragg grating high-temperature sensor (8) to be detected is not in contact with the inner wall of the hollow annular heating ring (3);
the fiber grating temperature analysis module (1) is connected with a signal output end of a fiber grating high-temperature sensor (8) to be detected through a signal line, and when the hollow annular heating ring (3) heats and moves along the fiber grating high-temperature sensor (8) to be detected, temperature information of each measuring point of the fiber grating high-temperature sensor is collected and processed through the fiber grating temperature analysis module (1) and is output to a terminal.
2. The detection device for positioning the measuring point position of the fiber bragg grating high-temperature sensor according to claim 1, wherein: the linear displacement platform (2), the left support frame (6) and the right support frame (7) are fixedly mounted on the optical anti-seismic platform (10) through screws, and the detection device further comprises a motion control module (9) in signal connection with the linear displacement platform (2).
3. The detection device for positioning the measuring point position of the fiber bragg grating high-temperature sensor according to claim 1 or 2, wherein: the hollow annular heating ring (3) is a cast aluminum heating ring or a nickel-chromium alloy heating ring or a copper-nickel alloy heating ring or a manganese-copper alloy heating ring, and the heating driving module (4) is a high-frequency current transmitter and controls the temperature field temperature by adjusting the current intensity.
4. The detection device for positioning the measuring point position of the fiber bragg grating high-temperature sensor according to claim 1 or 2, wherein: the fixing support (5) comprises a three-dimensional adjusting base (5-1) and a heat source clamp (5-2), and the heat source clamp (5-2) is used for clamping the hollow annular heating ring (3) and is tightly pressed and fixed through a screw; the bottom of the heat source clamp (5-2) is fixed on a three-dimensional adjusting base (5-1) through a bolt, the three-dimensional adjusting base (5-1) is fixed on a moving platform (2-1) of the linear displacement platform (2) through a bolt, and the central axis of the hollow annular heating ring (3) is coincided with the central axis of the fiber bragg grating high-temperature sensor (8) to be detected under the adjustment of the three-dimensional adjusting base (5-1).
5. The detection device for positioning the measuring point position of the fiber bragg grating high-temperature sensor according to claim 1 or 2, wherein: the left support frame (6) and the right support frame (7) respectively comprise a sensor clamp (6-1) and a height-adjustable support base (6-2), the sensor clamp (6-1) is used for clamping a fiber grating high-temperature sensor (8) to be detected and fixing the fiber grating high-temperature sensor in a screw jacking mode, and the base of the sensor clamp (6-1) is fixed on the height-adjustable support base (6-2) through screws; the height-adjustable support base (6-2) is a vertical adjusting support or a three-dimensional adjusting support, and the left support frame (6) and the right support frame (7) are respectively adjusted to be at the same horizontal height through the height-adjustable support base (6-2).
6. The detection device for positioning the measuring point position of the fiber bragg grating high-temperature sensor according to claim 1 or 2, wherein: the fiber grating temperature analysis module (1) adopts a fiber grating wavelength demodulator, the spectral range of the fiber grating temperature analysis module is 1525-1575 nm or 1510-1595 nm, the number of physical channels is 1 or 4 or 8 or 16 or 64, the wavelength precision is +/-2 pm, the scanning frequency is 1-Khz, the accurate positioning of a temperature measuring point is realized through the position corresponding to the variation peak value of the reflection central wavelength of the fiber grating high-temperature sensor (8) to be detected, and the acquired and analyzed data are displayed through a computer or a mobile phone or a panel of a terminal.
7. The detection device for positioning the measuring point position of the fiber bragg grating high-temperature sensor according to claim 1 or 2, wherein: the fiber bragg grating high-temperature sensor (8) to be detected is erected on the central axis of the hollow annular heating ring (3) through the left support frame (6) and the right support frame (7).
8. The detection device for positioning the measuring point position of the fiber bragg grating high-temperature sensor according to claim 1 or 2, wherein: the linear displacement platform (2) adopts a one-dimensional linear displacement platform with the stroke of 2000mm and the precision of 0.1mm, and the motor (2-2) drives the moving platform (2-1) to move along a straight line.
9. The detection device for positioning the measuring point position of the fiber bragg grating high-temperature sensor according to claim 1 or 2, wherein: the fiber bragg grating high-temperature sensor (8) to be detected is a fiber bragg grating high-temperature sensor with a single measuring point or multiple measuring points, and when the fiber bragg grating high-temperature sensor (8) to be detected is a fiber bragg grating high-temperature sensor with multiple measuring points, the moving distance of the hollow annular heating ring (3) on the linear displacement table (2) is larger than the distance between the measuring points.
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| CN201921737460.7U CN210571082U (en) | 2019-10-16 | 2019-10-16 | Detection apparatus for location fiber grating high temperature sensor measurement station position |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112225449A (en) * | 2020-10-22 | 2021-01-15 | 武汉长盈通光电技术股份有限公司 | Automatic temperature sensor switching device for special optical fiber drawing furnace |
| CN112964181A (en) * | 2021-03-29 | 2021-06-15 | 中南大学 | Optical fiber Bragg grating position detection device and measurement method thereof |
| CN114323335A (en) * | 2022-03-16 | 2022-04-12 | 浙江大学湖州研究院 | Distributed optical fiber temperature measurement system for high-temperature pipeline group |
-
2019
- 2019-10-16 CN CN201921737460.7U patent/CN210571082U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112225449A (en) * | 2020-10-22 | 2021-01-15 | 武汉长盈通光电技术股份有限公司 | Automatic temperature sensor switching device for special optical fiber drawing furnace |
| CN112964181A (en) * | 2021-03-29 | 2021-06-15 | 中南大学 | Optical fiber Bragg grating position detection device and measurement method thereof |
| CN114323335A (en) * | 2022-03-16 | 2022-04-12 | 浙江大学湖州研究院 | Distributed optical fiber temperature measurement system for high-temperature pipeline group |
| CN114323335B (en) * | 2022-03-16 | 2022-06-21 | 浙江大学湖州研究院 | Distributed optical fiber temperature measurement system for high-temperature pipeline group |
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