CN215413854U - Measuring instrument for comprehensive parameters of electric wire - Google Patents
Measuring instrument for comprehensive parameters of electric wire Download PDFInfo
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- CN215413854U CN215413854U CN202121908493.0U CN202121908493U CN215413854U CN 215413854 U CN215413854 U CN 215413854U CN 202121908493 U CN202121908493 U CN 202121908493U CN 215413854 U CN215413854 U CN 215413854U
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Abstract
The utility model discloses a measuring instrument for comprehensive parameters of an electric wire, which comprises a shell, a measuring device and a measuring device, wherein the outer side of the shell is provided with a holding area, and the inner part of the shell is provided with a hollow structure of an installation cavity; the diameter measuring device is arranged in the mounting cavity, one end of the diameter measuring device extends out of the bottom end of the shell and is used for measuring the diameter of the conductor to be measured; the diameter measuring device comprises a laser scanner and a positioning device arranged on one side of the laser scanner; the temperature sensor is arranged on the inner side of the positioning device and used for measuring the temperature of the conductor to be measured; the calculation module is arranged in the shell and used for calculating the resistivity and the length of the conductor to be measured; the computing module is electrically connected with the temperature sensor and the laser scanner; the display is arranged on the outer side of the shell and is electrically connected with the computing module; the display is used for displaying the parameters of the temperature, the diameter, the resistivity and the length of the conductor to be tested; the utility model has simple test and accurate test result, and can calculate the length of the conductor to be tested.
Description
Technical Field
The utility model relates to the technical field of wire and cable measurement, in particular to a wire comprehensive parameter measuring instrument.
Background
The wire and cable is used for transmitting electric (magnetic) energy, information and wire products for realizing electromagnetic energy conversion, the wire and cable in a broad sense is also called as cable for short, the cable in a narrow sense is insulated cable, and it can be defined as: the cable may also have additional uninsulated conductors, and its diameter and length need to be measured during manufacture and use of the cable.
And installation, repair or maintenance work of electrical equipment often requires electricians and other personnel to perform a series of measurements and inspections at the work site. For example, an electrician may need to accurately measure various distances or spans of a wire installation location to determine the length of wire needed, check a lead spool to check whether the wire on the spool is long enough, and check the length of the cut wire before installing the wire to the installation location.
If the meter ruler is directly adopted to measure the length of the electric wire, the method is only suitable for short sections, and if the length of the electric wire exceeds 1000 meters, the measurement is not easy, and the situation of inaccurate measurement is easy to occur due to the bending of the electric wire.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a measuring instrument for the comprehensive parameters of electric wires.
In order to achieve the purpose of the utility model, the utility model adopts the technical scheme that: a measuring instrument for comprehensive parameters of an electric wire comprises,
the outer side of the shell is provided with a holding area, and the inner part of the shell is provided with a hollow structure of an installation cavity;
the diameter measuring device is arranged in the mounting cavity, one end of the diameter measuring device extends out of the bottom end of the shell and is used for measuring the diameter of the conductor to be measured; the diameter measuring device comprises a laser scanner and a positioning device arranged on one side of the laser scanner;
the temperature sensor is arranged on the inner side of the positioning device and used for measuring the temperature of the conductor to be measured;
the calculation module is arranged in the shell and used for calculating the resistivity and the length of the conductor to be measured; the computing module is electrically connected with the temperature sensor and the laser scanner;
the display is arranged on the outer side of the shell and is electrically connected with the computing module; the display is used for displaying the parameters of the temperature, the diameter, the resistivity and the length of the conductor to be tested.
Preferably, positioner includes fixed bolster and two fixed chucks, and the fixed bolster includes two parallel and relative support arms that set up, two the cooperation of the one end joint of fixed chuck, the other end is fixed on the support arm through the spring respectively.
Preferably, the spring is in a compressed state.
Preferably, two of said fixed jaws form an elliptical ring-like structure.
Preferably, the laser scanner is installed in the installation cavity, and the bottom of shell has seted up the through-hole corresponding the laser scanner.
Preferably, the temperature sensor is installed on the inner side surface of one of the fixed chucks, and a pressure sensor is arranged on the inner side surface of the other fixed chuck and electrically connected with the laser scanner.
Preferably, the holding area is provided with a plurality of anti-skid stripes.
Preferably, the inner side surfaces of the two fixed chucks are provided with insulating layers.
Preferably, the bottom end of the outer shell is hinged with a collision-proof shell which is adaptive to the shape of the diameter measuring device.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
1. the utility model tests the diameter of the conductor to be tested, the ambient temperature and the resistivity of the conductor, and further calculates the length of the conductor to be tested, the instrument has simple test and accurate test result;
2. the positioning device is arranged, the fixed chucks are respectively fixed on the supporting arm through the springs, and the conductor to be measured is in a cylindrical shape, so that the two fixed chucks form an elliptical ring-shaped structure, the horizontal radial movement of the conductor to be measured can be limited, the distance from the axis of the conductor to be measured to the laser scanner is ensured to be unchanged, the measurement error is reduced, and the operation is convenient;
3. according to the utility model, the outer diameter of the conductor to be measured is measured by the laser scanner, data can be displayed on a display, and the temperature t, the diameter D, the resistivity Rt and the calculated length L on the display are provided for a user to check, so that the method is more intuitive;
4. the utility model has simple structure and convenient operation, and is suitable for popularization and application.
Drawings
FIG. 1 is a plan view of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Wherein: 1. a housing; 2. a laser scanner; 3. a temperature sensor; 4. a calculation module; 5. a display; 6. a support arm; 7. fixing the chuck; 8. a spring; 9. a through hole; 10. sliding stripes; 11. an anti-collision shell; 12. a pressure sensor.
Detailed Description
The utility model is further described with reference to the following figures and examples:
a measuring instrument for comprehensive parameters of an electric wire comprises,
the outer side of the shell 1 is provided with a holding area, and the interior of the shell is provided with a hollow structure of an installation cavity; the holding area is provided with a groove towards the inner side of the shell 1 and is provided with a plurality of anti-skid stripes 10, so that an operator can hold the holding area conveniently;
the diameter measuring device is arranged in the mounting cavity, one end of the diameter measuring device extends out of the bottom end of the shell 1, and the diameter measuring device is used for measuring the diameter of the conductor to be measured; the diameter measuring device comprises a laser scanner 2 and a positioning device arranged on one side of the laser scanner 2; the bottom end of the shell 1 is hinged with an anti-collision shell 11 which is adaptive to the diameter measuring device in shape and used for protecting the diameter measuring device and avoiding the diameter measuring device from being impacted;
the temperature sensor 3 is arranged on the inner side of the positioning device and used for measuring the temperature of the conductor to be measured;
the calculation module 4 is arranged inside the shell 1 and used for calculating the resistivity and the length of the conductor to be measured; calculation module 4 with temperature sensor 3 and laser scanner 2 electricity are connected, and calculation module 4 receives laser scanner 2 records the external diameter length D of the conductor that awaits measuring and the temperature t of the conductor that awaits measuring that temperature sensor 3 measures, matches corresponding temperature coefficient k through the temperature of surveyt；
The display 5 is arranged on the outer side of the shell 1 and is electrically connected with the computing module 4; the display 5 is used for displaying the temperature t, the diameter D and the resistivity R of the conductor to be testedtAnd a length L parameter.
The laser scanner 2 is located in the installation cavity, the positioning device extends out of the bottom end of the shell 1, and a through hole 9 is formed in the bottom end of the shell 1 corresponding to the laser scanner 2; the positioning device comprises a fixed support and two fixed chucks 7, the fixed support comprises two parallel supporting arms 6 which are arranged oppositely, and the supporting arms 6 are fixed on the shell 1.
One ends of the two fixed chucks 7 are in clamping fit, and the other ends of the two fixed chucks are fixed on the supporting arm 6 through springs 8 respectively; the springs 8 are in a compressed state, so that the two fixed chucks 7 can clamp a conductor to be detected, and the inner side surfaces of the two fixed chucks 7 are provided with insulating layers, so that the detection result is prevented from being influenced; two fixed chuck 7 forms oval ring column structure, and the conductor that awaits measuring passes oval ring column structure, and by oval ring column structure that oval ring column structure is fixed here exerts the effort to fixed chuck 7 through the spring 8 that is in compression state to make fixed chuck 7 form oval ring column structure and can press from both sides the conductor that awaits measuring.
An operator adjusts the position of the conductor to be measured, so that the conductor to be measured is clamped and fixed by the elliptical ring-shaped structure and passes through the through hole 9 at the bottom end of the shell 1; temperature sensor 3 installs one the medial surface of fixed chuck 7, the medial surface of another fixed chuck 7 are equipped with pressure sensor 12, pressure sensor 12 with laser scanner 2 electricity is connected, senses as pressure sensor 12 during the oval ring structure centre gripping post conductor that awaits measuring, laser scanner 2 carries out the external diameter measurement to the conductor that awaits measuring.
The calculation module 4 receives the temperature t measured by the temperature sensor 3 and the diameter D measured by the laser scanner 2 and calculates the length L of the conductor to be measured, and the display 5 displays the temperature t, the diameter D, the resistivity Rt and the calculated length L.
Formula by resistance: r is rho L/S;
it is known that L ═ R × S/ρ;
wherein: r ═ Rt*kt*1000/L；RtIs the direct current resistance value of the conductor at t DEG C, ktIs the temperature coefficient;
S＝π*D2(ii)/4; d is the diameter of the conductor to be measured;
ρt＝Rt*S。
wherein the temperature coefficient is as follows:
the previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the above-described embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A measuring instrument for comprehensive parameters of an electric wire is characterized by comprising,
the outer side of the shell (1) is provided with a holding area, and the interior of the shell is provided with a hollow structure of an installation cavity;
the diameter measuring device is arranged in the mounting cavity, one end of the diameter measuring device extends out of the bottom end of the shell (1), and the diameter measuring device is used for measuring the diameter of the conductor to be measured; the diameter measuring device comprises a laser scanner (2) and a positioning device arranged on one side of the laser scanner (2);
the temperature sensor (3) is arranged on the inner side of the positioning device and used for measuring the temperature of the conductor to be measured;
the calculation module (4) is arranged in the shell (1) and used for calculating the resistivity and the length of the conductor to be measured; the computing module (4) is electrically connected with the temperature sensor (3) and the laser scanner (2);
the display (5) is arranged on the outer side of the shell (1) and is electrically connected with the computing module (4); the display (5) is used for displaying the parameters of the temperature, the diameter, the resistivity and the length of the conductor to be tested.
2. The instrument for measuring the comprehensive parameters of the electric wire as claimed in claim 1, wherein the positioning device comprises a fixed support and two fixed chucks (7), the fixed support comprises two parallel and oppositely arranged supporting arms (6), one end of each fixed chuck (7) is in clamping fit, and the other end of each fixed chuck is fixed on the corresponding supporting arm (6) through a spring (8).
3. A device for measuring the electrical wire synthesis parameters according to claim 2, characterized in that said spring (8) is in compression.
4. A device for measuring the electrical wire synthesis parameters according to claim 2, characterized in that the two fixed jaws (7) form an elliptical ring-like structure.
5. The instrument for measuring the comprehensive parameters of the electric wire as claimed in claim 1, wherein the laser scanner (2) is installed in the installation cavity, and the bottom end of the housing (1) is provided with a through hole (9) corresponding to the laser scanner (2).
6. A device for measuring the comprehensive parameters of electric wires as claimed in claim 2, wherein said temperature sensor (3) is mounted on the inner side of one of said fixed chucks (7), and the inner side of the other fixed chuck (7) is provided with a pressure sensor (12), and said pressure sensor (12) is electrically connected to said laser scanner (2).
7. The comprehensive parameter measuring instrument for the electric wire as claimed in claim 1, wherein the holding area is provided with a plurality of anti-slip stripes (10).
8. A device for measuring the overall parameters of an electric wire as in claim 2, wherein the inner sides of both said fixed jaws (7) are provided with an insulating layer.
9. A device for measuring the overall parameters of an electric wire as in claim 1, characterized in that the bottom end of the outer sheath (1) is hinged with a crash shell (11) adapted to the shape of the diameter measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121908493.0U CN215413854U (en) | 2021-08-16 | 2021-08-16 | Measuring instrument for comprehensive parameters of electric wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121908493.0U CN215413854U (en) | 2021-08-16 | 2021-08-16 | Measuring instrument for comprehensive parameters of electric wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215413854U true CN215413854U (en) | 2022-01-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121908493.0U Active CN215413854U (en) | 2021-08-16 | 2021-08-16 | Measuring instrument for comprehensive parameters of electric wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215413854U (en) |
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2021
- 2021-08-16 CN CN202121908493.0U patent/CN215413854U/en active Active
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