CN210570467U - Wire and cable length measuring device - Google Patents
Wire and cable length measuring device Download PDFInfo
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- CN210570467U CN210570467U CN201921448599.XU CN201921448599U CN210570467U CN 210570467 U CN210570467 U CN 210570467U CN 201921448599 U CN201921448599 U CN 201921448599U CN 210570467 U CN210570467 U CN 210570467U
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- copper
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- copper connecting
- cable
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 99
- 229910052802 copper Inorganic materials 0.000 claims abstract description 99
- 239000010949 copper Substances 0.000 claims abstract description 99
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000003993 interaction Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
A wire and cable length measuring device relates to the technical field of wire and cable detection. One end of a first copper connecting wire is connected to the first copper buckle through a binding post, the other end of the first copper connecting wire is connected to one end of a copper coil through the binding post, and the copper coil is wound on the iron core; one end of a second copper connecting wire is connected to the other end of the copper coil through a wiring terminal, and the other end of the second copper connecting wire is connected to one end of the electronic switch through the wiring terminal; one end of a third copper connecting wire is connected to the other end of the electronic switch through a binding post, and the other end of the third copper connecting wire is connected to one end of a direct-current power supply through the binding post; one end of a fourth copper connecting wire is connected to the other end of the direct-current power supply through a wiring terminal, and the other end of the fourth copper connecting wire is connected to the second copper buckle through the wiring terminal. The measuring device has simple integral structure and low manufacturing cost, and is suitable for great popularization. The measuring method is simple and feasible, does not damage the cable, can perfectly replace the existing detection method with damage and low working efficiency, and has great economic and social benefits.
Description
Technical Field
The utility model relates to a wire and cable detects technical field, specifically is to relate to a wire and cable length measurement device.
Background
The cable length measurement has a very wide application range, and can measure the length of a transmission line (such as a communication line and an overhead line) as well as the well depth, the building height, the length and the distance of a conducting wire, detect various communication cables and power cables (such as a coaxial cable, a shielded and unshielded twisted pair of an interface, a broken line fault of a telephone line and the like.
In the current market, counterfeit and shoddy products are serious, the phenomenon of weight shortage and short time is very common, and the shortage of the cable length is also a prominent problem. However, the length of the cable to be measured needs to be measured, which is not only tedious, but also affected by the field, environment and human error of operators, and meanwhile, the insulation appearance of the cable is damaged by irreparable damage, which causes economic loss for enterprises and users. The purpose of cable detection is to improve product quality, prevent to be good again, reduce the loss. However, this detection method increases the loss and effort, which is not affordable.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an electric wire and cable length measuring device, measuring device simple structure measures portably, swiftly.
In order to realize the above purpose, the utility model discloses the technical scheme who adopts is:
a wire and cable length measuring device mainly comprises a device structure unit, wherein the device structure unit mainly comprises a wire and cable to be measured, a first copper buckle, a first copper connecting lead, a copper coil, an iron core, a second copper connecting lead, an electronic switch, a third copper connecting lead, a direct-current power supply, a fourth copper connecting lead and a second copper buckle; one end of a first copper connecting wire is connected to the first copper buckle through a binding post, the other end of the first copper connecting wire is connected to one end of a copper coil through the binding post, and the copper coil is wound on the iron core; one end of a second copper connecting wire is connected to the other end of the copper coil through a wiring terminal, and the other end of the second copper connecting wire is connected to one end of the electronic switch through the wiring terminal; one end of a third copper connecting wire is connected to the other end of the electronic switch through a binding post, and the other end of the third copper connecting wire is connected to one end of a direct-current power supply through the binding post; one end of a fourth copper connecting wire is connected to the other end of the direct-current power supply through a wiring terminal, and the other end of the fourth copper connecting wire is connected to the second copper buckle through the wiring terminal.
In the wire and cable length measuring device, the wire and cable to be measured, the length of which needs to be measured, can be placed in any form.
In the wire and cable length measuring device, the two copper buckles are copper buckles with clamping devices and are used for tightly connecting the two copper connecting wires with the wire and cable to be measured.
The device for measuring the length of the wire and the cable further comprises a measuring module unit, wherein the measuring module unit mainly comprises a magnetic field intensity measuring module, a signal amplifying module, an A/D conversion module, a single chip microcomputer and a liquid crystal display module which are sequentially electrically connected, and the single chip microcomputer receives a control signal input by a man-machine interaction module and controls an electronic switch to act.
The utility model discloses a wire and cable length measurement device, its beneficial effect shows:
the utility model discloses a measuring device overall structure is simple, and the cost is with low costs, is fit for wideling popularize. The measuring method is simple and feasible, does not damage the cable, can perfectly replace the existing cable length detection method with damage and low working efficiency, and has great economic and social benefits.
Drawings
The following detailed description will be made on the wire and cable length measuring device according to the present invention with reference to the accompanying drawings.
Fig. 1 is a schematic view of the structural unit of the wire and cable length measuring device.
Fig. 2 is an electrical schematic diagram of a measuring module unit of the wire and cable length measuring apparatus.
Detailed Description
The utility model discloses a wire and cable length measuring device divide into two units, is device constitutional unit and measuring module unit respectively. Referring to fig. 1, the device structure unit mainly includes a to-be-tested wire cable 101, a first copper buckle 102, a first copper connecting wire 103, a copper coil 104, an iron core 105, a second copper connecting wire 106, an electronic switch 110, a third copper connecting wire 107, a dc power supply 109, a fourth copper connecting wire 108, and a second copper buckle 111.
The wire and cable 101 to be measured, the length of which needs to be measured, is drawn straight in the drawing, but it is just an expression that the wire and cable to be measured may be either bent or in a form used in a coil. No matter what kind of form of placing, utilize the utility model relates to a length measuring device measures this wire and cable's length does not have any influence.
The two copper buckles 102 and 111 are copper buckles with clamping devices and are used for tightly connecting the first copper connecting lead 103 and the fourth copper connecting lead 108 with the electric wire 101 to be measured.
One end of a first copper connection wire 103 is connected to the first copper clip 102 via a terminal, and the other end is connected to one end of a copper coil 104 via a terminal, and the copper coil 104 is wound around an iron core 105. The second copper connecting wire 106 has one end connected to the other end of the copper coil 104 via a terminal, and the other end connected to one end of the electronic switch 110 via a terminal. One end of a third copper connecting wire 107 is connected to the other end of the electronic switch 110 through a binding post, and the other end is connected to one end of the direct-current power supply 109 through the binding post; one end of the fourth copper connecting wire 108 is connected to the other end of the dc power supply 109 through a terminal, and the other end is connected to the second copper buckle 111 through a terminal.
As shown in fig. 2, the measuring module unit of the electric wire and cable length measuring device of the present invention mainly comprises a magnetic field strength measuring module 201, a signal amplifying module 202, an a/D conversion module 203, a single chip microcomputer 204, and a liquid crystal display module 205 electrically connected in sequence, and at the same time, the single chip microcomputer 204 receives a control signal inputted by a human-computer interaction module 206, and controls the electronic switch 110 to operate. In addition, the power module provides power supply for each component of the measuring module unit.
The following description focuses on the usage, procedure and working principle of the wire and cable length measuring device of the present invention. Before testing, preparation work is done. Firstly, a first copper buckle 102 and a second copper buckle 111 with clamping devices are firmly clamped at two ends of a wire cable 101 to be tested; two ends of a first copper connecting lead 103 are respectively connected to the first copper buckle 102 and one end of a copper coil 104 through binding posts, and the copper coil 104 is wound on an iron core 105 in advance and used for increasing the magnetic field intensity; two ends of a second copper connecting lead 106 are respectively connected with the other end of the copper coil 104 and one end of the electronic switch 110 through binding posts; the two ends of the third copper connecting wire 107 are respectively connected with the other end of the electronic switch 110 and the direct current power supply 109 through binding posts; both ends of the fourth copper connecting wire 108 are connected to the dc power supply 109 and the second copper clip 111 through terminals, respectively.
After the connection is completed, the magnetic field intensity measuring module 201 is placed near the copper coil 104 so as to sensitively receive the magnetic field intensity, and then the direct current power supply 109 is turned on. Then the power supply module of the measuring module unit of the wire and cable length measuring device is started, and the measuring position may have a magnetic field generated by other factors, so that the man-machine interaction module 206 is operated to enable the singlechip 204 (which can adopt a C8051F102 singlechip) to be in a calibration function, and the magnetic field intensity H measured by the magnetic field intensity measuring module 201 is used for measuring the magnetic field intensity H1And the reference value is recorded as zero in the singlechip. Then, the man-machine interaction module 206 is operated to enable the singlechip 204 to be in a length measurement function, the singlechip 204 firstly controls the electronic switch 110 to be closed, the closing time of the electronic switch 110 can be measured in advance and is recorded as time t1Will t1Recording in a memory of the singlechip; since the electronic switch 110 is closed, the current reaches the copper coil 104 after a certain time, and since the copper coil 104 is energized, the current will flow in the vicinity of the copper coil 104Generating a constant magnetic field, assuming a magnetic field strength of H2Then, at this moment, the singlechip considers that the magnetic field intensity in the current environment is (H)2-H1)，(H2-H1) Is significantly greater than H1That is, the magnetic field intensity at the position of the wire and cable length measuring device is obviously increased. The time when the magnetic field intensity is obviously increased is recorded by the singlechip and is recorded as time t2. Meanwhile, when the propagation velocity of the electromagnetic wave is denoted by v, the sum of the lengths of all the wires is (v (t)2-t1)). The lengths of the first copper connecting lead 103, the second copper connecting lead 106, the third copper connecting lead 107 and the fourth copper connecting lead 108 may be measured in advance before the measurement, and are respectively marked as l1、l2、l3And l4Then the length of the wire 101 to be tested is (v (t)2-t1)-l1-l2-l3-l4)。
In addition, in order to reduce errors, the second copper connecting wires 106 with various lengths can be replaced for testing, the length difference among the various lengths is selected to be larger, then the measurement is carried out for multiple times, and the average value is obtained, so that the measurement errors can be greatly reduced.
The foregoing is merely exemplary and illustrative of the principles of the present invention, and various modifications, additions and substitutions as may be made to the specific embodiments described herein by those skilled in the art are intended without departing from the spirit and scope of the invention as defined in the accompanying claims.
Claims (3)
1. A wire and cable length measuring device is composed of a device structure unit, and is characterized in that: the device structure unit comprises a wire cable to be tested, a first copper buckle, a first copper connecting lead, a copper coil, an iron core, a second copper connecting lead, an electronic switch, a third copper connecting lead, a direct-current power supply, a fourth copper connecting lead and a second copper buckle; one end of a first copper connecting wire is connected to the first copper buckle through a binding post, the other end of the first copper connecting wire is connected to one end of a copper coil through the binding post, and the copper coil is wound on the iron core; one end of a second copper connecting wire is connected to the other end of the copper coil through a wiring terminal, and the other end of the second copper connecting wire is connected to one end of the electronic switch through the wiring terminal; one end of a third copper connecting wire is connected to the other end of the electronic switch through a binding post, and the other end of the third copper connecting wire is connected to one end of a direct-current power supply through the binding post; one end of a fourth copper connecting wire is connected to the other end of the direct-current power supply through a wiring terminal, and the other end of the fourth copper connecting wire is connected to the second copper buckle through the wiring terminal.
2. The wire and cable length measuring device of claim 1, wherein: the two copper buckles are copper buckles with clamping devices and are used for tightly connecting the two copper connecting wires with the wire cable to be tested.
3. The wire-cable length measuring device according to claim 1 or 2, wherein: the device also comprises a measuring module unit, wherein the measuring module unit comprises a magnetic field intensity measuring module, a signal amplifying module, an A/D conversion module, a single chip microcomputer and a liquid crystal display module which are sequentially electrically connected, and the single chip microcomputer receives a control signal input by the human-computer interaction module and controls the action of an electronic switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921448599.XU CN210570467U (en) | 2019-08-30 | 2019-08-30 | Wire and cable length measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921448599.XU CN210570467U (en) | 2019-08-30 | 2019-08-30 | Wire and cable length measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN210570467U true CN210570467U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921448599.XU Active CN210570467U (en) | 2019-08-30 | 2019-08-30 | Wire and cable length measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411330A (en) * | 2019-08-30 | 2019-11-05 | 国网安徽省电力有限公司培训中心 | A kind of device for measuring length of roll of cable and measurement method |
-
2019
- 2019-08-30 CN CN201921448599.XU patent/CN210570467U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411330A (en) * | 2019-08-30 | 2019-11-05 | 国网安徽省电力有限公司培训中心 | A kind of device for measuring length of roll of cable and measurement method |
| CN110411330B (en) * | 2019-08-30 | 2024-08-06 | 国网安徽省电力有限公司培训中心 | Wire and cable length measuring device and measuring method |
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