CN112629423A - Auxiliary device for measuring thickness of diaphragm material - Google Patents
Auxiliary device for measuring thickness of diaphragm material Download PDFInfo
- Publication number
- CN112629423A CN112629423A CN202110122655.6A CN202110122655A CN112629423A CN 112629423 A CN112629423 A CN 112629423A CN 202110122655 A CN202110122655 A CN 202110122655A CN 112629423 A CN112629423 A CN 112629423A
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- light source
- rod
- thickness
- supporting rod
- source receiving
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- 239000000463 material Substances 0.000 title claims abstract description 58
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 239000012528 membrane Substances 0.000 abstract description 16
- 238000001514 detection method Methods 0.000 description 12
- 239000010408 film Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 7
- 230000003321 amplification Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
- G01B11/0616—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating
- G01B11/0625—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating with measurement of absorption or reflection
Abstract
The invention discloses an auxiliary device for measuring the thickness of a diaphragm material, and relates to the technical field of diaphragm thickness measurement. The device comprises a first supporting rod and a second supporting rod, wherein the first supporting rod and the second supporting rod are mutually crossed, the first supporting rod or the second supporting rod comprises a first rod part and a second rod part, and a crossed part for connecting the first rod part and the second rod part is arranged on the first rod part, a measuring roller is arranged on the first rod part, a light source receiving device is arranged on the second rod part, a light source emitter is arranged on the first supporting rod or the second supporting rod, and the distance from the measuring roller to a cross point is smaller than the distance from the farthest end of the light source receiving device to the cross point. The invention has the advantages of simple structure, convenient and flexible measurement, real-time and accurate measurement of the thickness of the membrane material and guarantee of the quality of the produced product.
Description
Technical Field
The invention relates to the technical field of membrane thickness measurement, in particular to an auxiliary device for membrane material thickness measurement.
Background
For film samples, the thickness is an important indicator for evaluating the performance of the film. For some coiled materials, especially for functional thin film materials such as aluminum plastic films, packaging films and the like, the functional thin film materials need to be processed subsequently to complete the function value, and the requirement on the thickness is stricter.
The invention, which is named as a device for detecting the thickness of a sheet material and is disclosed in patent No. CN202020271131.4, comprises a contact type distance sensor, a detection roller, a support roller and a mounting bracket, wherein the contact type distance sensor is arranged on the mounting bracket, a sensing head of the contact type distance sensor is connected with the detection roller, the support roller is arranged on the mounting bracket, the detection roller and the support roller are arranged oppositely, and the detection roller and the support roller are respectively used for contacting with the upper surface and the lower surface of the sheet material. The invention is provided with the detection roller and the support roller for clamping the flaky materials, and further, the thickness of the flaky materials is measured by detecting the up-and-down displacement of the rollers. The device clamps the flaky material between the detection roller and the supporting roller, avoids the influence of factors such as flaky material shaking and multilayer gaps on thickness detection, and improves the detection accuracy.
The thickness detection device is complex in structure, limits the width of the membrane material, and only the membrane material within the width range of the thickness detection device can pass through the thickness detection device, so that the application range of the device is reduced. In addition, there are also methods and corresponding devices for measuring the thickness of the film, partly using highly penetrating radiation, which are costly and involve a risk of radiation, which is not suitable for widespread use.
Disclosure of Invention
The invention provides an auxiliary device for measuring the thickness of a diaphragm material, which amplifies the thickness of the diaphragm by taking similar amplification as a principle so as to conveniently measure and obtain the amplified thickness value of the diaphragm or other size data associated with the amplified thickness value of the diaphragm.
The technical scheme for solving the problems is as follows: the utility model provides a diaphragm material thickness measurement auxiliary device, including first branch and second branch, first branch and second branch intercross, first branch or second branch include first pole portion, second pole portion, connect the crossing portion of first pole portion and second pole portion, install the measurement gyro wheel in the first pole portion, install light source receiving arrangement in the second pole portion, install light source emitter on first branch or the second branch, and the distance of measuring the gyro wheel to the crosspoint is less than the distance to the crosspoint of last most distal to the crosspoint of light source receiving arrangement.
Furthermore, the first support rod and the second support rod are both provided with inserting holes, and the connecting device further comprises an intermediate connecting shaft which is inserted into the two inserting holes simultaneously to connect the first support rod and the second support rod. When the first supporting rod and the second supporting rod are clamped on two sides of the membrane material by the measuring roller, the first supporting rod and the second supporting rod can adaptively rotate around the middle connecting shaft according to the actual thickness of the membrane material, so that the included angle between the first supporting rod and the second supporting rod changes.
Further, the light source receiving device includes a light source receiving plate and a light source reflection plate. The light source reflector plate is used for reflecting the light signals, the light source receiving plate is used for receiving the light signals, when the light signals are transmitted to the light source receiving device through the light source transmitter, the light signals are reflected by the light source reflector plate, and after the light signals are reflected for multiple times, the light signals are received by the light source receiving plate, so that the light signals can be conveniently acquired by the light source receiving device at the position as far as possible.
Further, the light source receiving plate and the light source reflection plate are attached to each other, and when the light source receiving device is installed on the second rod portion, the light source receiving plate is located between the second rod portion and the light source reflection plate. The light source reflecting plate is made of a glass plate material which can transmit part of optical signals and reflect part of the optical signals. When the light signal sent by the light source emitter reaches the light source reflecting plate, part of the light signal reaches the light source receiving plate through the light source reflecting plate to be received; the residual light signals are reflected to other positions of the light source reflection plate, finally, a plurality of signal points are generated on the light source receiving plate, and then a plurality of measurement and calculation signals are provided for the same position of the same diaphragm in one measurement and calculation.
Further, a light source receiving plate may be installed at the end of the second rod portion at the far crossing position, and a light source reflection plate is installed between the light source emitter and the light source receiving plate. The light source emitter emits light signals, and the light signals are received by the light source receiving plate located at the farthest end of the second rod part after being reflected for multiple times, so that the thickness size numerical value of the diaphragm material is amplified to the maximum, and the measurement of the amplified thickness numerical value of the diaphragm is facilitated.
Further, the connecting device also comprises an elastic tensioning piece which is connected and arranged between the second rod part of the first supporting rod and the second rod part of the second supporting rod. The elastic tensioning piece controls the two measuring rollers at one end of the first rod part to mutually lean against two sides of the diaphragm material, so that a gap is prevented from being formed between the measuring rollers and the diaphragm material.
Further, the thickness of the intersection portion is less than or equal to half the thickness of the first rod portion or the second rod portion. When the first supporting rod and the second supporting rod are mutually crossed and connected, the two measuring rollers at the end of the first rod part can be in opposite contact, and the light source can also be transmitted at the middle position of the first supporting rod and the second supporting rod, so that the problems that the light source receiving device cannot receive light signals and cannot measure the light signals due to light reflection deviation are avoided.
Furthermore, the light source emitter is arranged on the cross part and faces the light source receiving device on the other supporting rod, and the light source receiving device also comprises a rotary adjusting piece used for adjusting the included angle between the light source emitter and the second rod part. The rotating adjusting piece is rotated to adjust the included angle between the light source emitter and the second rod part, so that the included angle between the light source emitter and the second rod part is adjusted according to actual situations, and the use is flexible.
Further, the rotary adjusting member includes a connection screw shaft connected to the light source emitter, and a screw adjusting hole opened on the crossing portion. The light source emitter is mounted on the cross part through a connecting threaded shaft in a threaded mode, and the included angle between the light source emitter and the second rod part can be changed through a threaded rotation mode.
The invention has the beneficial effects that: when the auxiliary device for measuring the thickness of the diaphragm material is used, the first rod parts of the first support rod and the second support rod are clamped on two sides of the diaphragm material at the same time, point contact is formed between the measuring roller and the diaphragm material, the second rod part is provided with the light source receiving device, and according to the incident angle of an optical signal received by the light source receiving device and the distance value from the optical signal to the intersection point of the first support rod and the second support rod, the values are combined to obtain a measured value which is in a fixed proportion to the thickness of the diaphragm material, namely the thickness value of the diaphragm material is amplified by a plurality of times, so that the auxiliary device can better measure and detect the minimum thickness value of the diaphragm material without a high-precision measuring tool.
When the distance from the measuring roller to the intersection point is smaller than the distance from the farthest end of the intersection point to the intersection point on the light source receiving device, the film thickness data can be amplified into the same-direction distance between the first supporting rod and the second supporting rod at least at the farthest end of the intersection point on the light source receiving device, so that the amplification function of the film thickness data is ensured. The middle connecting shaft can fix the two support rods and can rotate by taking the middle connecting shaft as a circle center to adapt to the phenomenon that the coiled material fluctuates up and down in the production process; in the test process, the elastic tensioning piece is in a proper elastic state, so that the measuring roller has proper pressure on the coiled material and keeps a contact state, and the actual thickness of the coiled material can be reflected.
The invention can accurately test the thickness of the film material in real time, ensure the quality of the produced product, reduce the test cost and the detection time and improve the qualification rate of the product. The thickness tester is simple in device, small in occupied space, suitable for being installed in the most places of a production line and high in anti-interference capacity.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to indicate like elements. The drawings in the following description are directed to some, but not all embodiments of the invention. For a person skilled in the art, other figures can be derived from these figures without inventive effort.
Fig. 1 is a schematic view of an overall structure of an auxiliary device for measuring a thickness of a diaphragm material according to an embodiment of the present invention;
FIG. 2 is a schematic view of the overall structure of an auxiliary device for measuring the thickness of a membrane material according to another embodiment of the present invention;
fig. 3 is a schematic view of a mounting structure of a light source emitter of an auxiliary device for measuring a thickness of a film material according to an embodiment of the present invention.
1-a first supporting rod, 2-a second supporting rod, 3-a first rod part, 4-a second rod part, 5-a cross part, 6-a measuring roller, 7-a light source receiving device, 8-a light source emitter, 9-a plug hole, 10-an intermediate connecting shaft, 11-a light source receiving plate, 12-a light source reflecting plate, 13-an elastic tensioning piece, 14-a rotary adjusting piece, 15-a connecting threaded shaft and 16-a threaded adjusting hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Referring to fig. 1 to 3, an auxiliary device for measuring a thickness of a film material according to an embodiment of the present invention includes a first supporting rod 1 and a second supporting rod 2, where the first supporting rod 1 and the second supporting rod 2 are intersected with each other, and in this embodiment, the first supporting rod 1 and the second supporting rod 2 are composed of a first rod portion 3, a second rod portion 4, and an intersecting portion 5. Wherein the crossing part 5 is connected with the first rod part 3 and the second rod part 4, the rotatable measuring roller 6 is arranged on the first rod part 3, and the central axis of the roller is superposed with the central axis of the first rod part 3. The light source receiving device 7 is mounted on the second rod part 4 of the first support rod 1 and the second rod part 4 of the second support rod 2, the insertion hole 9 is formed in the crossing part 5, the first support rod 1 and the second support rod 2 are overlapped in a crossing mode at the crossing part 5, meanwhile, an intermediate connecting shaft 10 is inserted into the insertion hole 9 to connect the first support rod 1 and the second support rod 2, and the first support rod 1 and the second support rod 2 rotate around the intermediate connecting shaft 10.
When the measuring roller 6 on the first rod part 3 is tightly attached to the membrane material, a set included angle is formed between the first rod part 1 and the second rod part 2, the light source emitter 8 on the cross part 5 of the first rod part 1 emits light signals, the light signals are received by the light source receiving device 7 on the second rod part 4 of the second rod part, the distance from the farthest end of the light source receiving device 7 to the middle connecting shaft 10 is larger than the distance from the measuring roller 6 to the middle connecting shaft 10, and at the moment, the distance from the light signal receiving point to the membrane material in the thickness direction is in a direct proportion relation with the membrane thickness.
As one of the preferred options of this embodiment, the light source receiving device 7 includes a light source receiving plate 11 and a light source reflection plate 12, the size of the light source receiving plate 11 is the same as that of the light source reflection plate 12, the light source receiving plate 11 and the light source reflection plate 12 are closely and completely overlapped with each other, and the light source receiving plate 11 is fixed to the second rod portion 4. The light source emitter 8 is arranged on the intersection part 5 of the light source receiving device 7 at one end close to the middle connecting shaft 10, and the light source emitter 8 on the first supporting rod 1 faces the light source receiving device 7 on the second supporting rod 2; the light source reflection plate 12 is made of a glass plate material which can transmit part of light signals and reflect part of the light signals, when the light signals sent by the light source emitter 8 reach the light source reflection plate 12, one part of the light signals is received to generate signal receiving points, and one signal receiving point corresponds to one amplification thickness value and the corresponding amplification proportion. By properly adjusting the angle of the light source transmitter 8, the light signal can be reflected multiple times on the light source receiving device 7 by means of the light source reflection plate 12, so as to generate multiple signal receiving points.
As one preferable item of another embodiment of the present invention, the light source reflection plate 12 and the light source reception plate 11 may also be separately disposed, the light source reception plate 11 is installed at the end of the second rod portion 4, the light source reflection plate 12 is a total reflection mirror, the light signal emitted by the light source emitter 8 reaches the light source reception plate 11 after being reflected by the light source reflection plate 12 for multiple times, only one signal point is obtained, and only one amplified value is measured for a single position of the film material.
However, the minimum width of the light source receiving plate 11 has higher requirements, and it is necessary to ensure that the light source receiving plate 11 can receive the optical signal when the first supporting rod 1 and the second supporting rod 2 maintain the minimum included angle and the maximum included angle. The light source reflection plate 12 of the present embodiment only needs to have a reflection function, so that the cost can be reduced, but the relative thickness measurement accuracy is reduced.
As a second preferred embodiment, an elastic tension member 13, i.e. a spring, is mounted between the first strut 1 and the second strut 2. In this embodiment, the elastic tension member 13 has one end connected to the end of the second rod portion 4 of the first rod 1 farthest from the intermediate connecting shaft 10 and the other end connected to the end of the second rod portion 4 of the second rod 2 farthest from the intermediate connecting shaft 10, and is further away from the intermediate connecting shaft 10 than the light source receiving device 7. So as to prevent the elastic tension member 13 from blocking light to influence the transmission of optical signals. And when elasticity tensioning member 13 is connected between first branch 1 and second branch 2, keep tensile state to under the elasticity effect of assurance elasticity tensioning member 13, be located the measuring roller 6 of first pole portion 3 department and can keep real-time contact state with the diaphragm material that is in the transmission moving state, with the contained angle between first branch 1 and the second branch 2 of real-time thickness self-adaptation adjustment according to the diaphragm material.
As a complement to the present embodiment, the thickness of the intersecting portion 5 in the present embodiment is equal to half the thickness of the first rod portion 3 or the second rod portion 4. The first rod part 3 and the second rod part 4 are equal in thickness, and the emission point of the light source emitter 8 is located on the center line of the second rod part 4 to avoid light reflection deviation. And the central axis of the measuring roller 6 is also coincident with the central axis of the first rod part 3, so that the two measuring rollers 6 are respectively contacted with the same position on the two side surfaces of the membrane material.
And a connection screw thread shaft 15 is integrally arranged on the light source emitter 8, a screw thread adjusting hole 16 is arranged at one end of the cross part 5 close to the second rod part 4, the connection screw thread shaft 15 and the screw thread adjusting hole 16 are combined into a rotary adjusting part 14, and when the light source emitter 8 is arranged on the first supporting rod 1 in a screw thread mode, the included angle between the light source emitter 8 and the second rod part 4 can be changed by means of the screw thread rotary installation mode, so that the number of signal points or the reflection times of optical signals can be changed, and the actual use requirements can be met.
In addition, the measuring roller 6 is detachably arranged on the first rod part 3, the measuring roller 6 can be adaptively replaced according to the actual approximate thickness numerical value interval of the membrane material, and when the membrane thickness is small and the accuracy is high, the diameter of the measuring roller 6 is properly adjusted to be small; if the thickness of the membrane is larger, the requirement on the accuracy is not high, and the diameter of the measuring roller 6 can be properly increased. To avoid that the small-size measuring roller 6 is sunk into the material with larger thickness to influence the measuring precision when a defect pit occurs on the material with larger thickness.
What needs to be supplemented is: the position of the signal receiving point on the second rod part 4 contains the numerical information of the distance from the signal receiving point to the intermediate connecting shaft 10 and the numerical information of the included angle between the first supporting rod 1 and the second supporting rod 2, and the thickness value of the membrane material can be reversely calculated subsequently according to the similar triangle theorem. The specific calculation method includes various methods such as software calculation and manual calculation, which are not described in detail.
Where not mentioned above, all are applicable to the prior art.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. An auxiliary device for measuring the thickness of a diaphragm material is characterized in that: including first branch (1) and second branch (2), first branch (1) and second branch (2) intercross, first branch (1) or second branch (2) include first pole portion (3), second pole portion (4), cross portion (5) of connecting first pole portion (3) and second pole portion (4), install on first pole portion (3) and measure gyro wheel (6), install light source receiving device (7) on second pole portion (4), install light source emitter (8) on first branch (1) or second branch (2), and measure gyro wheel (6) and be less than light source receiving device (7) and go up the distance to the most distal to the crosspoint of crosspoint to the distance of crosspoint.
2. An auxiliary device for measuring the thickness of a diaphragm material according to claim 1, wherein: the connecting rod comprises a first supporting rod (1), a second supporting rod (2), connecting holes (9) and a middle connecting shaft (10), wherein the connecting holes (9) are formed in the first supporting rod (1) and the second supporting rod (2), and the middle connecting shaft (10) is simultaneously inserted into the two connecting holes (9) to connect the first supporting rod (1) and the second supporting rod (2).
3. An auxiliary device for measuring the thickness of a diaphragm material according to claim 1, wherein: the light source receiving device (7) includes a light source receiving plate (11) and a light source reflecting plate (12).
4. A film material thickness measurement aid according to claim 3, wherein: the light source receiving plate (11) and the light source reflecting plate (12) are mutually attached, and when the light source receiving device (7) is arranged on the second rod part (4), the light source receiving plate (11) is positioned between the second rod part (4) and the light source reflecting plate (12).
5. A film material thickness measurement aid according to claim 3, wherein: the light source receiving plate (11) can also be arranged at the end of the far-crossing position of the second rod part (4), and the light source reflecting plate (12) is arranged between the light source emitter (8) and the light source receiving plate (11).
6. An auxiliary device for measuring the thickness of a diaphragm material according to claim 1, wherein: the elastic tensioning part (13) is arranged between the second rod part (4) of the first supporting rod (1) and the second rod part (4) of the second supporting rod (2) in a connecting mode.
7. An auxiliary device for measuring the thickness of a diaphragm material according to claim 1, wherein: the thickness of the intersection part (5) is less than or equal to half the thickness of the first rod part (3) or the second rod part (4).
8. A film material thickness measurement aid according to claim 3, wherein: the light source emitter (8) is arranged on the cross part (5) and faces the light source receiving device (7) on the other supporting rod, and the light source receiving device also comprises a rotary adjusting piece (14) used for adjusting the included angle between the light source emitter (8) and the second rod part (4).
9. An auxiliary device for measuring the thickness of a diaphragm material according to claim 8, wherein: the rotary adjusting member (14) includes a connecting threaded shaft (15) connected to the light source emitter (8), and a threaded adjusting hole (16) opened on the intersection portion (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110122655.6A CN112629423A (en) | 2021-01-29 | 2021-01-29 | Auxiliary device for measuring thickness of diaphragm material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110122655.6A CN112629423A (en) | 2021-01-29 | 2021-01-29 | Auxiliary device for measuring thickness of diaphragm material |
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| Publication Number | Publication Date |
|---|---|
| CN112629423A true CN112629423A (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110122655.6A Pending CN112629423A (en) | 2021-01-29 | 2021-01-29 | Auxiliary device for measuring thickness of diaphragm material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838690A (en) * | 2022-04-14 | 2022-08-02 | 新兴铸管股份有限公司 | Large-scale pipeline wall thickness measuring device and measuring method thereof |
-
2021
- 2021-01-29 CN CN202110122655.6A patent/CN112629423A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838690A (en) * | 2022-04-14 | 2022-08-02 | 新兴铸管股份有限公司 | Large-scale pipeline wall thickness measuring device and measuring method thereof |
| CN114838690B (en) * | 2022-04-14 | 2023-05-19 | 新兴铸管股份有限公司 | Wall thickness measuring device and wall thickness measuring method for large-scale pipeline |
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Effective date of registration: 20240123 Address after: 310000, Building 14, 201, No. 8 Foster Street, Jinbei Street, Lin'an District, Hangzhou City, Zhejiang Province (self declared) Applicant after: Hangzhou Foster Functional Membrane Materials Co.,Ltd. Country or region after: China Address before: 215555 Xinzhuang Industrial Park, Changshu City, Suzhou City, Jiangsu Province Applicant before: SUZHOU FIRST PV MATERIAL CO.,LTD. Country or region before: China |
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