CN211626562U - Measuring device for magnetic conduction metal cable passing speed and length - Google Patents
Measuring device for magnetic conduction metal cable passing speed and length Download PDFInfo
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- CN211626562U CN211626562U CN202020614253.9U CN202020614253U CN211626562U CN 211626562 U CN211626562 U CN 211626562U CN 202020614253 U CN202020614253 U CN 202020614253U CN 211626562 U CN211626562 U CN 211626562U
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Abstract
The utility model discloses a measuring device for the passing speed and the passing length of a magnetic conductive metal cable, which comprises an excitation circuit, a first induction circuit, a second induction circuit and a degaussing circuit which are arranged in sequence, wherein a detection controller is respectively in communication connection with the excitation circuit, the first induction circuit, the second induction circuit and the degaussing circuit; the excitation circuit is used for magnetizing the magnetic conductive metal cable; the first induction circuit and the second induction circuit are used for generating electromagnetic induction with the magnetized magnetic conductive metal cable to generate induction voltage; the degaussing circuit is used for eliminating magnetic signals on the magnetic conductive metal cable; the detection controller is used for controlling the switches of the excitation circuit and the demagnetization circuit, collecting and analyzing induction voltages generated by the first induction circuit and the second induction circuit, and calculating the passing speed and the accumulated passing length of the magnetic conductive metal cable. The utility model discloses can improve the not enough of prior art, improve measuring degree of accuracy and measurement of efficiency.
Description
Technical Field
The utility model belongs to the technical field of the measurement technique and specifically relates to a measuring device of magnetic conduction metal cable through speed and length.
Background
The magnetic conduction metal cable is measured through speed and length by adopting a steel tape manual measurement or a photoelectric pulse coding disc, and is a manual or contact measurement mode, and the modes have the phenomena of low measurement efficiency, slipping of the photoelectric pulse coding disc and the like, so that the measurement efficiency and accuracy are influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a magnetic conduction metal cable passes through measuring device of speed and length, can solve the not enough of prior art, improves measuring degree of accuracy and measurement of efficiency.
In order to solve the technical problem, the utility model adopts the following technical proposal.
A device for measuring the passing speed and the passing length of a magnetic conductive metal cable comprises an excitation circuit, a first induction circuit, a second induction circuit and a degaussing circuit which are sequentially arranged, wherein a detection controller is respectively in communication connection with the excitation circuit, the first induction circuit, the second induction circuit and the degaussing circuit;
the excitation circuit is used for magnetizing the magnetic conductive metal cable;
the first induction circuit and the second induction circuit are used for generating electromagnetic induction with the magnetized magnetic conductive metal cable to generate induction voltage;
the degaussing circuit is used for eliminating magnetic signals on the magnetic conductive metal cable;
the detection controller is used for controlling the switches of the excitation circuit and the demagnetization circuit, collecting and analyzing induction voltages generated by the first induction circuit and the second induction circuit, and calculating the passing speed and the accumulated passing length of the magnetic conductive metal cable.
Preferably, the excitation circuit includes a first power supply, a first switch, and an excitation coil arranged in series.
Preferably, the first induction circuit includes a first induced electromotive force measuring instrument and a first induction coil arranged in series.
Preferably, the second induction circuit includes a second induced electromotive force measuring instrument and a second induction coil which are arranged in series.
Preferably, the degaussing circuit comprises a second power supply, a second switch and a degaussing coil arranged in series.
Adopt the beneficial effect that above-mentioned technical scheme brought to lie in: the utility model discloses structural adoption arranges the mode of excitation circuit, two way electromagnetic induction circuit, demagnetization circuit in proper order on the magnetic conduction cable traffic direction, realizes contactless measurement through the electromagnetic induction principle, adopts magnetic induction count and cross correlation principle computation speed and length, can realize contactless automatic measure, has reached the purpose that improves work efficiency and measurement accuracy.
Drawings
Fig. 1 is a circuit diagram of an embodiment of the present invention;
fig. 2 is a flow chart of measurement control of the detection controller according to an embodiment of the present invention.
Detailed Description
Referring to fig. 1, the device for measuring the passing speed and the passing length of the magnetic conductive metal cable comprises an excitation circuit 1, a first induction circuit 2, a second induction circuit 3 and a degaussing circuit 4 which are sequentially arranged, wherein a detection controller 5 is respectively in communication connection with the excitation circuit 1, the first induction circuit 2, the second induction circuit 3 and the degaussing circuit 4;
the excitation circuit 1 is used for magnetizing the magnetic conductive metal cable 6;
the first induction circuit 2 and the second induction circuit 3 are used for generating electromagnetic induction with the magnetized magnetic conductive metal cable 6 to generate induction voltage;
the degaussing circuit 4 is used for eliminating magnetic signals on the magnetic conductive metal cable;
the detection controller 5 is used for controlling the switches of the excitation circuit 1 and the demagnetization circuit 4, collecting and analyzing the induced voltages generated by the first induction circuit 2 and the second induction circuit 3, and calculating the passing speed and the accumulated passing length of the magnetic conductive metal cable.
The excitation circuit 1 includes a first power supply a1, a first switch K1, and an excitation coil S1, which are arranged in series. The first induction circuit 2 includes a first induced electromotive force measuring instrument e1 and a first induction coil S2, which are arranged in series. The second induction circuit 3 includes a second induced electromotive force measuring instrument e2 and a second induction coil S3, which are arranged in series. The degaussing circuit 4 comprises a second power supply a2, a second switch K2 and a degaussing coil S4 arranged in series.
The detection controller 5 can adopt known control devices such as an industrial PC, a PLC and the like, the connection and use method of the detection controller also belongs to the common knowledge in the field, and the technicians in the field can completely use the detection controller without barriers according to the product manual and the algorithm flow chart provided by the utility model.
Referring to fig. 2, a method for measuring the passing speed and the passing length of the magnetic conductive metal cable includes the following steps:
let the distance between the excitation circuit 1 and the first induction circuit 2 be L1, and the distance between the first induction circuit 2 and the second induction circuit 3 be L2;
A. the magnetic conductive metal cable 6 passes through an excitation coil S1 of the excitation circuit 1, at the moment, the detection controller 5 controls the first switch K1 to be switched on and off, the magnetic conductive metal cable 6 is instantaneously magnetized, and a magnetic signal is left at a position where the magnetic conductive metal cable passes through the excitation coil S1; the magnetic conductive metal cable 6 continues to move, when a magnetic signal passes through the first induction coil S2, an electromagnetic induction phenomenon occurs, an induced voltage is generated, the voltage signal is detected by the first induced electromotive force measuring instrument e1, the voltage signal is transmitted to the detection controller 5, the counting module in the detection controller 5 starts counting at the moment, the counting value is 1 at the moment, and meanwhile, the detection controller 5 controls the first switch K1 to be opened and closed again to magnetize the magnetic conductive metal cable 6 for the next time; when the detection controller 5 receives the second voltage signal transmitted by the first electromotive force measuring instrument e1, the counting module in the detection controller 5 counts up by one, and sequentially cycles, and the total counting times are represented by N;
B. when a first magnetic signal passes through the second induction coil S3, an electromagnetic induction phenomenon occurs, an induced voltage is generated, the voltage signal is detected by the second induced electromotive force measuring instrument e2, the voltage signal is transmitted to the detection controller 5, the detection controller 5 calculates a time difference Δ t1 between the magnetic signal passing through the first induction coil S2 and the second induction coil S3, then a movement speed v1 of the first magnetic signal passing through the first induction coil S2 and the second induction coil S3 can be obtained from v 1L 2/Δ t1, a movement speed v2 of the second magnetic signal passing through the first induction coil S2 and the second induction coil S3 is obtained by using the same formula, and by analogy, a movement speed vn of the nth magnetic signal passing through the first induction coil S2 and the second induction coil S3 can be obtained;
C. if the current counting number of the detection controller 5 is N, the magnetic conductive metal cable 6 at the current moment passes through the total length L of the exciting coil S1 and is obtained from L being N × L1+ v × Δ t2, the movement speed v is the movement speed of the (N-1) th magnetic signal, and the Δ t2 is the time difference between the current moment and the nth counting moment calculated by the detection controller 5;
D. the detection controller 5 controls the second switch K2 to close, the demagnetizing coil S4 starts to work, and the magnetic signal on the magnetic conductive metal cable 6 is eliminated.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a measurement device of magnetic conduction metal cable through speed and length which characterized in that: the device comprises an excitation circuit (1), a first induction circuit (2), a second induction circuit (3) and a demagnetization circuit (4) which are arranged in sequence, wherein a detection controller (5) is respectively in communication connection with the excitation circuit (1), the first induction circuit (2), the second induction circuit (3) and the demagnetization circuit (4);
the excitation circuit (1) is used for magnetizing the magnetic conductive metal cable (6);
the first induction circuit (2) and the second induction circuit (3) are used for generating electromagnetic induction with the magnetized magnetic conductive metal cable (6) to generate induction voltage;
the degaussing circuit (4) is used for eliminating magnetic signals on the magnetic conductive metal cable;
the detection controller (5) is used for controlling the switches of the excitation circuit (1) and the demagnetization circuit (4), collecting and analyzing induction voltages generated by the first induction circuit (2) and the second induction circuit (3), and calculating the passing speed and the accumulated passing length of the magnetic conductive metal cable.
2. The device for measuring the passing speed and the passing length of the magnetic-conductive metal cable according to claim 1, is characterized in that: the excitation circuit (1) comprises a first power supply (A1), a first switch (K1) and an excitation coil (S1) which are arranged in series.
3. The device for measuring the passing speed and the passing length of the magnetic conductive metal cable according to claim 2, is characterized in that: the first induction circuit (2) includes a first induced electromotive force meter (e1) and a first induction coil (S2) that are arranged in series.
4. A device for measuring the passing speed and the passing length of a magnetic conductive metal cable according to claim 3, which is characterized in that: the second induction circuit (3) includes a second induced electromotive force measuring instrument (e2) and a second induction coil (S3) that are arranged in series.
5. The device for measuring the passing speed and the passing length of the magnetic conductive metal cable according to claim 4, is characterized in that: the degaussing circuit (4) comprises a second power supply (A2), a second switch (K2) and a degaussing coil (S4) which are arranged in series.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020614253.9U CN211626562U (en) | 2020-04-22 | 2020-04-22 | Measuring device for magnetic conduction metal cable passing speed and length |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020614253.9U CN211626562U (en) | 2020-04-22 | 2020-04-22 | Measuring device for magnetic conduction metal cable passing speed and length |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112919321A (en) * | 2021-02-04 | 2021-06-08 | 上海海事大学 | Detection apparatus for non-contact measurement synchronous error |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112919321A (en) * | 2021-02-04 | 2021-06-08 | 上海海事大学 | Detection apparatus for non-contact measurement synchronous error |
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