CN218524257U - Needle type temperature measuring probe - Google Patents
Needle type temperature measuring probe Download PDFInfo
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- CN218524257U CN218524257U CN202222715246.XU CN202222715246U CN218524257U CN 218524257 U CN218524257 U CN 218524257U CN 202222715246 U CN202222715246 U CN 202222715246U CN 218524257 U CN218524257 U CN 218524257U
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Abstract
The utility model provides a pin type temperature probe, the probe includes: the probe comprises a needle head, a needle body, an optical fiber Bragg grating and a photoelectric interface, wherein the needle head is connected to the needle body and forms a probe cavity with a hollow inner part, the optical fiber Bragg grating is arranged in the probe cavity, and the photoelectric interface is arranged on the outer surface of the needle body and is connected with the optical fiber Bragg grating. The temperature of a tiny space is integrally measured and controlled by utilizing the characteristic that the wavelength of the fiber Bragg grating can linearly change although the temperature is changed, and the fiber Bragg grating is arranged in the cavity and is made into a probe, so that the temperature characteristics of different parts in a circuit can be accurately controlled and measured, the debugging of the circuit is facilitated, and the reliability of the system is improved. By using a plurality of probes simultaneously, the temperature of different parts of the circuit is controlled and measured, and thus the temperature gradient information of the circuit is obtained.
Description
Technical Field
The utility model relates to a temperature detect field especially relates to a pin type temperature probe.
Background
In the process of detecting the working state of the circuit, the temperature characteristic of the circuit is an important index for circuit test and calibration. The temperature characteristic of the circuit is obtained by placing the circuit in different temperature environments and detecting the operating characteristic of the circuit. In the related art, in order to obtain the temperature characteristic of the circuit, it is necessary to place the entire circuit in a constant temperature oven, control the external temperature of the circuit by changing the oven temperature, and detect the operating state of the circuit, thereby obtaining the temperature characteristic of the circuit. The detection operation of the temperature characteristic is complex through the method, the temperature gradient effect of each part of the circuit, which cannot be obtained by the temperature characteristic of the whole intelligent test circuit, is avoided, and the obtained circuit temperature characteristic result is inaccurate.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present disclosure is to provide a needle type temperature probe for solving the technical problem in the related art that the temperature gradient effect of a circuit cannot be tested.
Based on the above-mentioned utility model purpose, a pin type temperature probe, the probe includes: the device comprises a needle head, a needle body, a fiber Bragg grating and an optoelectronic interface;
the needle head is connected to the needle body and forms a probe cavity with a hollow interior;
the fiber Bragg grating is arranged in the probe cavity;
the photoelectric interface is arranged on the outer surface of the needle body and is connected with the optical fiber Bragg grating.
Further, the needle head and the needle body are made of an alumina ceramic material.
Further, resistance paste is attached to the surfaces of the needle head and the needle body.
Further, the inner diameter of the probe cavity is 0.35 mm, and the diameter of the fiber Bragg grating is 0.3 mm.
Further, the probe also comprises a test unit;
the test unit is arranged outside the probe cavity and is connected with the photoelectric interface.
Further, the probe also comprises a display unit;
the display unit is arranged on the outer surface of the needle body and connected with the test unit.
Further, the probe further comprises a heating unit;
the heating unit is arranged in the probe cavity and connected with the fiber Bragg grating.
Further, the heating unit includes a positive electrode terminal and a negative electrode terminal;
the positive electrode terminal and the negative electrode terminal are disposed on an outer surface of the needle body.
The present disclosure can achieve at least the following advantageous effects:
a needle-type thermometric probe, the probe comprising: the probe comprises a needle head, a needle body, an optical fiber Bragg grating and a photoelectric interface, wherein the needle head is connected to the needle body and forms a probe cavity with a hollow interior, the optical fiber Bragg grating is arranged in the probe cavity, and the photoelectric interface is arranged on the outer surface of the needle body and is connected with the optical fiber Bragg grating. Therefore, although the wavelength of the fiber Bragg grating can change linearly, the fiber Bragg grating is arranged in the cavity and made into a probe, so that the temperature integrated measurement and control of a tiny space are realized, the temperature characteristics of different parts in the circuit can be accurately controlled and measured, the debugging of the circuit is facilitated, and the reliability of the system is improved. By using a plurality of probes simultaneously, the temperature of different parts of the circuit is controlled and measured, and thus the temperature gradient information of the circuit is obtained.
Drawings
FIG. 1 is a side view of a needle thermometric probe according to an exemplary embodiment.
FIG. 2 is a diagram illustrating an exemplary size of a needle-type temperature probe, according to an exemplary embodiment.
FIG. 3 is a diagram illustrating another example size of a needle thermometry probe according to an exemplary embodiment.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
FIG. 1 is a side view of a needle thermometry probe according to an exemplary embodiment, as shown in FIG. 1, the probe comprising: the device comprises a needle head, a needle body, a fiber Bragg grating and an optoelectronic interface;
the needle head is connected to the needle body and forms a probe cavity with a hollow interior;
the fiber Bragg grating is arranged in the probe cavity;
the photoelectric interface is arranged on the outer surface of the needle body and is connected with the optical fiber Bragg grating.
It can be understood that the circuit that needs to perform temperature characteristic detection is relatively tight and is wrapped by the insulating protective layer, and the ordinary-shaped detection device cannot reach the inside of the circuit, so the probe-type temperature detection device is arranged in this embodiment to detect the temperature condition of each part of the circuit. The needle type temperature measuring probe consists of a needle head 1, a needle body 2, a fiber Bragg grating 3 and a photoelectric interface 4. The probe head 1 and the probe body 2 are connected to form an external structure of the probe, a hollow probe cavity is arranged in the probe, a Fiber Bragg Grating (FBG) with a certain length is wrapped in the probe cavity, the FBG is used for having the characteristic of sensing integration, the input and the output are in the same optical path, and the passive structure of the sensor can be realized. The characteristic that the wavelength of the FBG changes linearly with the temperature is utilized to determine the condition that the wavelength of the FBG changes with the temperature. When the temperature detection is carried out through the needle type temperature measuring probe, the needle head is inserted into a corresponding circuit part needing temperature detection, the characteristic of FBG wavelength to linear change is applied, the wavelength change condition of the FBG is converted into an electric signal through a photoelectric interface connected with the FBG, and the electric signal is subjected to signal analysis, so that the temperature change condition of the corresponding circuit part is determined, the circuit characteristic condition at the corresponding moment is compared, and the temperature characteristic of the corresponding part of the circuit is determined. For example, fig. 2 is a bottom view of a needle-type thermometric probe according to an exemplary embodiment, referring to fig. 2, the probe has a needle length of 10mm and a needle length of 10mm, and the micro-scale is set to enable the thermometric probe to penetrate into the circuit and to facilitate the conduction of the circuit temperature.
Further, the needle head and the needle body are made of an alumina ceramic material.
Further, resistance paste is attached to the surfaces of the needle head and the needle body.
It can be understood that, in this embodiment, the resistance paste is printed on the alumina ceramic sleeve green body, and is baked at a high temperature of about 1600 ℃, and then is processed by the electrode and the lead to form the needle-type temperature measuring probe, the thermal conductivity of the alumina ceramic material is utilized, so that the probe can more accurately conduct the circuit temperature, and the resistance paste is printed on the surface of the probe and in the cavity to block the current in the circuit, so that the temperature conducted to the fiber bragg grating is the accurate temperature condition of the circuit at the corresponding position.
Further, FIG. 3 is a bottom view of a needle thermometric probe shown according to an exemplary embodiment. Referring to fig. 3, the inner diameter of the probe cavity is 0.35 mm, and the diameter of the fiber bragg grating is 0.3 mm.
Further, the probe further comprises a heating unit;
the heating unit is arranged in the probe cavity and connected with the fiber Bragg grating.
Further, the heating unit includes a positive electrode terminal and a negative electrode terminal;
the positive electrode end and the negative electrode end are disposed on an outer surface of the needle body.
As shown in fig. 3, the temperature probe further includes a heating unit for externally heating a local circuit corresponding to the circuit to be tested when the temperature of the local circuit does not reach a preset temperature value, so as to determine the temperature characteristic of the circuit according to the temperature variation. Therefore, the heating unit for external heating through the thermometric probe is included in the present embodiment, the heating power supply comprises a positive electrode terminal 5 and a negative electrode terminal 6, the electrode terminals are arranged at the bottom of the needle body and are used for converting electric energy transmitted by external equipment into heat energy, and the heat energy is conducted to corresponding positions of the circuit through the thermometric probe, so as to realize external heating of the circuit.
Further, the probe also comprises a test unit;
the test unit is arranged outside the probe cavity and is connected with the photoelectric interface.
Further, the probe also comprises a display unit;
the display unit is arranged on the outer surface of the needle body and connected with the test unit.
It is understood that the display unit is used for displaying the temperature change condition of the circuit.
A needle-type thermometric probe, the probe comprising: the probe comprises a needle head, a needle body, an optical fiber Bragg grating and a photoelectric interface, wherein the needle head is connected to the needle body and forms a probe cavity with a hollow interior, the optical fiber Bragg grating is arranged in the probe cavity, and the photoelectric interface is arranged on the outer surface of the needle body and is connected with the optical fiber Bragg grating. Therefore, although the wavelength of the fiber Bragg grating can change linearly, the fiber Bragg grating is arranged in the cavity and made into a probe, so that the temperature integrated measurement and control of a tiny space are realized, the temperature characteristics of different parts in the circuit can be accurately controlled and measured, the debugging of the circuit is facilitated, and the reliability of the system is improved. By using a plurality of probes simultaneously, the temperature of different parts of the circuit is controlled and measured, and thus the temperature gradient information of the circuit is obtained.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. A needle-type thermometric probe, said probe comprising: the device comprises a needle head, a needle body, a fiber Bragg grating and a photoelectric interface;
the needle head is connected to the needle body and forms a probe cavity with a hollow interior;
the fiber Bragg grating is arranged in the probe cavity;
the photoelectric interface is arranged on the outer surface of the needle body and is connected with the optical fiber Bragg grating.
2. The thermometric probe of claim 1, wherein said needle head and said needle body are made of an alumina ceramic material.
3. The thermometric probe of claim 1, wherein the resistance paste is attached to the surface of said needle head and said needle body.
4. The thermometric probe of claim 1, wherein the inner diameter of the probe cavity is 0.35 mm and the diameter of the fiber bragg grating is 0.3 mm.
5. The thermometric probe of claim 1, wherein said probe further comprises a test unit;
the test unit is arranged outside the probe cavity and is connected with the photoelectric interface.
6. The thermometric probe of claim 5, wherein said probe further comprises a display unit;
the display unit is arranged on the outer surface of the needle body and connected with the test unit.
7. The thermometric probe of claim 1, wherein said probe further comprises a heating unit;
the heating unit is arranged in the probe cavity and connected with the fiber Bragg grating.
8. The thermometric probe of claim 7, wherein said heating element comprises a positive electrode terminal and a negative electrode terminal;
the positive electrode terminal and the negative electrode terminal are disposed on an outer surface of the needle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222715246.XU CN218524257U (en) | 2022-10-11 | 2022-10-11 | Needle type temperature measuring probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222715246.XU CN218524257U (en) | 2022-10-11 | 2022-10-11 | Needle type temperature measuring probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218524257U true CN218524257U (en) | 2023-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222715246.XU Active CN218524257U (en) | 2022-10-11 | 2022-10-11 | Needle type temperature measuring probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218524257U (en) |
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2022
- 2022-10-11 CN CN202222715246.XU patent/CN218524257U/en active Active
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