CN217789985U - Strain gauge and device for processing pad surface of strain gauge - Google Patents
Strain gauge and device for processing pad surface of strain gauge Download PDFInfo
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- CN217789985U CN217789985U CN202220381001.5U CN202220381001U CN217789985U CN 217789985 U CN217789985 U CN 217789985U CN 202220381001 U CN202220381001 U CN 202220381001U CN 217789985 U CN217789985 U CN 217789985U
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- strain gauge
- strainometer
- clamp
- pad
- transition layer
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Abstract
The utility model discloses a strain gauge, include: a circuit board; a welding disc is arranged on the circuit board; a metal transition layer is arranged on the bonding pad; and the bonding pad is welded with a lead through the metal transition layer. Also disclosed is an apparatus for treating a strain gauge pad surface, comprising: the electrolytic cell, the clamp, the counter electrode and the power supply; the negative electrode of the power supply is connected with the clamp, and the positive electrode of the power supply is connected with the counter electrode; the electrolytic cell is used for containing electrolyte; the clamp is clamped on the sensitive grid of the strain gauge of any of claims 1-3. The utility model provides a pair of strainometer and be used for handling strainometer pad surface device through only on the strainometer pad of 3 ~ 5 mu m in thickness, through being provided with the metal transition layer, has promoted easily weldability by a wide margin, and then has improved the stability of strainometer welding in to a great extent and the use.
Description
Technical Field
The utility model relates to a strainometer preparation technical field, specifically speaking, in particular to strainometer and be used for handling the device on strainometer pad surface.
Background
The land pads are basic constituent units of surface mount assembly, and are used for forming land patterns (land patterns) of a circuit board, namely, various land combinations designed for specific component types.
During the use process of the strain gauge, the output signal of the strain gauge needs to be connected with a circuit board through two leads, and the leads and the strain gauge bonding pads need to be welded through soldering tin. Because the oxide in the sensitive grid has good chemical stability and is difficult to remove, the soldering flux must be adopted in the existing industrial production process to improve the solderability and further improve the soldering quality and efficiency. The existing soldering flux welding process is easy to cause insufficient soldering on one hand, so that the service life of the sensor is short; on the other hand, the flux increases the pressure of environmental protection, and is easy to cause skin and eye damage to welding workers.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem of the prior art, the embodiment of the utility model provides a strainometer and be used for handling the surperficial device of strainometer pad. The technical scheme is as follows:
in one aspect, a strain gauge is provided, comprising: a circuit board; a bonding pad is arranged on the circuit board; a metal transition layer is arranged on the bonding pad; and the bonding pad is welded with a lead through the metal transition layer.
Further, the metal transition layer adopts nickel.
Further, the strain gauge further comprises a sensitive grid, and the sensitive grid is arranged on the circuit board.
In another aspect, an apparatus for treating a surface of a strain gauge pad, comprising: the electrolytic cell, the clamp, the counter electrode and the power supply; the negative electrode of the power supply is connected with the clamp, and the positive electrode of the power supply is connected with the counter electrode; the electrolytic cell is used for containing electrolyte; the clamp clamps on the sensitive grid of the strain gauge.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is:
the utility model provides a pair of strainometer and be used for handling strainometer pad surface device through only on the strainometer pad of 3 ~ 5 mu m in thickness, through being provided with the metal transition layer, has promoted easily weldability by a wide margin, and then has improved the stability of strainometer welding in to a great extent and the use.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of a strain gauge wire bonding according to embodiment 1 of the present invention;
fig. 2 is a schematic view of an apparatus for processing a pad surface of a strain gauge according to embodiment 2 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Example 1
The utility model provides a strain gauge, see figure 1, include: a circuit board 1; a bonding pad 2 is arranged on the circuit board 1; a metal transition layer is arranged on the bonding pad 2; the bonding pad 2 is welded with a lead through the metal transition layer.
Further, the metal transition layer adopts nickel.
Further, the strain gauge further comprises a sensitive grid 4, and the sensitive grid is arranged on the circuit board.
In this embodiment, the pad is provided with a solder joint 3 and is connected to the lead through the solder joint.
Example 2
An apparatus for treating a surface of a strain gauge pad, see fig. 2, is provided, comprising: an electrolytic cell 5, a clamp 6, a counter electrode 7 and a power supply 8; the negative electrode of the power supply 8 is connected with the clamp 6, and the positive electrode of the power supply 8 is connected with the counter electrode 7; the electrolytic cell 5 is used for containing electrolyte; the clamp 6 is clamped to the sensitive grating of the strain gauge of example 1.
When the device is applied specifically, the electrolytic cell holds electrolyte, the clamp is clamped on the sensitive grid to be electrified, the bonding pad is immersed in the electrolyte, and two electrodes are used for constant current electrolysis.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is:
the utility model provides a pair of strainometer and be used for handling strainometer pad surface device through only on the strainometer pad of 3 ~ 5 mu m in thickness, through being provided with the metal transition layer, has promoted easily weldability by a wide margin, and then has improved the stability of strainometer welding in to a great extent and the use.
The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (4)
1. A strain gauge, comprising: a circuit board; a bonding pad is arranged on the circuit board; a metal transition layer is arranged on the bonding pad; the bonding pad is welded with a lead through the metal transition layer;
the welding pads are provided with welding points and connected with the leads through the welding points; the thickness of the bonding pad is 3-5 mu m.
2. The strain gage of claim 1 wherein said metal transition layer comprises nickel.
3. The strain gauge of claim 1, further comprising a sensitive grating disposed on the circuit board.
4. An apparatus for treating a surface of a strain gauge pad, comprising: the electrolytic cell, the clamp, the counter electrode and the power supply; the negative electrode of the power supply is connected with the clamp, and the positive electrode of the power supply is connected with the counter electrode; the electrolytic cell is used for containing electrolyte; the clamp is clamped to the sensitive grating of the strain gauge of any of claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220381001.5U CN217789985U (en) | 2022-02-24 | 2022-02-24 | Strain gauge and device for processing pad surface of strain gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220381001.5U CN217789985U (en) | 2022-02-24 | 2022-02-24 | Strain gauge and device for processing pad surface of strain gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217789985U true CN217789985U (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220381001.5U Active CN217789985U (en) | 2022-02-24 | 2022-02-24 | Strain gauge and device for processing pad surface of strain gauge |
Country Status (1)
| Country | Link |
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| CN (1) | CN217789985U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115942642A (en) * | 2022-12-30 | 2023-04-07 | 中山市中力衡传感科技有限公司 | Resistance foil type sensor processing method and resistance foil type sensor |
-
2022
- 2022-02-24 CN CN202220381001.5U patent/CN217789985U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115942642A (en) * | 2022-12-30 | 2023-04-07 | 中山市中力衡传感科技有限公司 | Resistance foil type sensor processing method and resistance foil type sensor |
| CN115942642B (en) * | 2022-12-30 | 2024-03-12 | 中山市中力衡传感科技有限公司 | Resistive foil sensor processing method and resistive foil sensor |
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