CN217954573U - Measurement circuit system suitable for camera inductance coil - Google Patents
Measurement circuit system suitable for camera inductance coil Download PDFInfo
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- CN217954573U CN217954573U CN202221241125.XU CN202221241125U CN217954573U CN 217954573 U CN217954573 U CN 217954573U CN 202221241125 U CN202221241125 U CN 202221241125U CN 217954573 U CN217954573 U CN 217954573U
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Abstract
The utility model aims at providing a simple structure, the cost is lower to convenient to use's measurement circuitry who is applicable to camera inductance coils. The utility model comprises a control circuit board, a TAG measuring module and a plurality of product measuring modules, wherein the product measuring modules comprise a needle adapter plate and a signal adapter plate; the signal adapter plate is used for measuring signal fan-out and coil winding direction electromagnetic induction circuits; the pin adapter plate is used for connecting signals transmitted by the signal adapter plate and measuring the detected induction coil through a connection test; the control circuit board is used for switching TAG measuring signals to be respectively connected into the plurality of product measuring modules; the TAG measuring module is used for measuring various impedance parameters of the detected induction coil. The utility model discloses be applied to the measurement technical field of the steady accuse coil of camera optics.
Description
Technical Field
The utility model discloses be applied to the measurement technical field of the steady accuse coil of camera optics, in particular to measurement circuitry suitable for camera inductance coil.
Background
At present, most of inductance measurement methods use an LCR measuring instrument, for example, a precision LCR meter using Keysight E4980A is used to realize the measurement of inductance and impedance. However, the measurement using the conventional Keysight E4980A precision LCR meter has the following problems: firstly, the cost of the instrument is high, in addition, the measured product is a small-size coil applied to a camera, if the instrument is directly used for measurement, a laminated structure is also needed to be used for leading out signals, but a test probe of the instrument does not have a special model, and operations such as redesigning and calibration are needed, so that the instrument is troublesome. If a measuring circuit system which is simple in structure, low in cost and convenient to use and is suitable for the camera inductance coil can be designed, the problems can be well solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome prior art not enough, provide a simple structure, the cost is lower to can improve work efficiency's measurement circuit system who is applicable to camera inductance coils.
The utility model adopts the technical proposal that: the utility model discloses a control circuit board, TAG measuring module and a plurality of product measuring module, a plurality of the product measuring module all with TAG measuring module signal connection, TAG measuring module with control circuit board signal connection;
the product measuring module comprises a needle adapter plate and a signal adapter plate, the needle adapter plate is in signal connection with the signal adapter plate, and the signal adapter plate is in signal connection with the control circuit board;
the signal adapter plate is used for measuring signal fan-out and electromagnetic induction circuits of coil winding directions;
the pin adapter plate is used for connecting signals transmitted by the signal adapter plate and measuring the detected induction coil through a connection test;
the control circuit board is used for switching TAG measuring signals to be respectively connected into the plurality of product measuring modules;
the TAG measuring module is used for measuring various impedance parameters of the detected induction coil.
Furthermore, the product measuring module also comprises a board-to-board connector, and the signal adapter board is in signal connection with the control circuit board through the board-to-board connector.
Furthermore, the control circuit board comprises a power supply module and a channel conversion module, wherein the power supply module is used for converting input voltage into working voltage required by each module and providing stable power supply voltage for each module; the channel switching module is used for switching a loop of the detected induction coil to the TAG measuring module through the relay module to measure.
Further, be provided with needle and Lpot on the needle keysets, be provided with needle and Lpot down under Hcur and the lower needle of Lcur on the signal keysets, be provided with Hcur port, hpot port, lcur port and Lpot port on the TAG measurement module, needle on Hpot, lpot go up the needle, hcur down the needle, lur down the needle respectively with Hpot port, lpot port, hcur port and Lcur port signal connection.
Further, the measurement circuit system further comprises a power adapter, and the power adapter is electrically connected with the control circuit board.
Further, measure circuit system still includes network switch, computer and product two-dimensional code and sweep yard rifle, the network switch with TAG measurement module signal connection, the computer with network switch signal connection, the product two-dimensional code sweep yard rifle with computer signal connection.
Further, the power supply module further comprises a direct current switching step-down voltage regulator of model TPS5430 DDA.
The utility model has the advantages that: the utility model discloses a control circuit board, TAG measuring module and a plurality of product measurement module, a plurality of the product measurement module is used for measuring a plurality of inductance coils respectively, control circuit board is used for switching TAG measuring signal and inserts these three kinds of coils respectively, TAG measuring module is used for measuring various impedance parameters such as inductance, electric capacity, resistance, phase place, consequently can pass through control circuit board's switching realizes multichannel simultaneous measurement's purpose, has improved work efficiency widely, and the flexibility is high, is fit for the data acquisition and the arrangement of automatic production line, has reduced measuring occupation of land space and cost, measures the instrument interface wire rod that uses and also need not other customization purchase, and the flexibility of this kind of application has also shortened purchase cycle and the degree of difficulty simultaneously.
Drawings
Fig. 1 is a connection block diagram of the present invention;
FIG. 2 is a schematic structural diagram of the product measuring module;
FIG. 3 is a schematic diagram of the connection of the sensed sensing coil and the TAG measurement module;
FIG. 4 is a circuit schematic of the TAG measurement module;
FIG. 5 is a circuit schematic of the power module;
FIG. 6 is a circuit schematic of the channel switching module;
FIG. 7 is a schematic circuit diagram of the on-off control module;
FIG. 8 is a circuit schematic of the excitation source control module and the IO interface module;
FIG. 9 is a circuit schematic of the signal patch panel;
fig. 10 is a schematic circuit diagram of the pin adapter plate.
Detailed Description
As shown in fig. 1 to 10, in this embodiment, the present invention includes a control circuit board 1, a TAG measurement module 2 and a plurality of product measurement modules 3, wherein the plurality of product measurement modules 3 are all in signal connection with the TAG measurement module 2, and the TAG measurement module 2 is in signal connection with the control circuit board 1;
the product measuring module 3 comprises a pin adapter plate 4 and a signal adapter plate 5, the pin adapter plate 4 is in signal connection with the signal adapter plate 5, and the signal adapter plate 5 is in signal connection with the control circuit board 1;
the signal adapter plate 5 is used for measuring signal fan-out and coil winding direction electromagnetic induction circuits;
the pin adapter plate 4 is used for connecting the signal transmitted by the signal adapter plate 5 and measuring the to-be-detected induction coil 12 through a connection test;
the control circuit board 1 is used for switching TAG measuring signals to be respectively connected into the product measuring modules 3;
the TAG measuring module 2 is used for measuring various impedance parameters of the detected induction coil 12.
In this embodiment, the product measuring module 3 further includes a board-to-board connector 6, and the signal adapter board 5 is in signal connection with the control circuit board 1 through the board-to-board connector 6.
In this embodiment, the control circuit board 1 includes a power supply module and a channel conversion module, where the power supply module is configured to convert an input voltage into a working voltage required by each module, and provide a stable power supply voltage for each module; the channel switching module is used for switching a loop of the detected induction coil 12 to the TAG measuring module 2 through the relay module 7 for measurement.
In this embodiment, be provided with needle 13 and Lpot on the needle keysets 4 and go up needle 14, be provided with needle 15 and Lcur down needle 16 under the Hcur on the signal keysets 5, be provided with Hcur port, hpot port, lcur port and Lpot port on the TAG measurement module 2, needle 13 on the Hpot, needle 14 on the Lpot, needle 15 under the Hcur, needle 16 under the LCur respectively with the Hpot port, the Lpot port, hcur port and Lcur port signal connection.
In this embodiment, the sensing coil to be measured is placed in the product measuring module 3 for needle drop measurement, and the two lead wires led out from the sensing coil 12 are respectively contacted with the Hcur lower needle 15, the Lcur lower needle 16, the Hpot upper needle 13 and the Lpot upper needle 14 in the product measuring module 3, so as to form an excitation source loop and a measurement feedback loop for four-wire measurement. The Hpot upper needle 13 is connected with the Hpot port through a first signal line, the Lpot upper needle 14 is connected with the Lpot port through a second signal line, the Hcur lower needle 15 is connected with the Hcur port through a third signal line, and the Lcur lower needle 16 is connected with the Lcur port through a fourth signal line. The third signal line and the fourth signal line are excitation source signals (voltage signals or current signals) provided by the TAG measurement module 2 to the sensing coil 12 to be detected, and then the signals of the sensing coil 12 to be detected are read back by using the first signal line and the second signal line. The signal flow direction of the excitation source is output from the Hcur port, passes through the sensing coil 12 to be detected and returns to the Lcur port.
In this embodiment, the passageway conversion module includes four group's input ports and a plurality of relay module of group, four group the input port is connected to respectively TAG measurement module 2's Hcur port, hpot port, lpot port and Lpot port, a plurality of groups switch relay module's input all with four groups input port connection, switch relay module includes second relay, third relay and first connector, the first binding post of second relay correspond with TAG measurement module 2's Hpot port, lpot port connection, the first binding post of third relay correspond with TAG measurement module's Hcur port, lpot port connection, the second relay with the second binding post of third relay correspond with connect on the first connector the port connection of measurement module. It can be seen that four sets of input ports are used for signal interaction with the four sets of port connections of the TAG measurement module 2. Through the second relay and the third relay, the current test module connected with the switching relay module is switched on with the TAG measurement module 2, and then the test of the electrical parameters is realized.
In this embodiment, the channel switching module further includes on-off control module and a plurality of groups excitation source control module, on-off control module includes encoder and transistor array unit, the input of encoder with TAG measurement module 2's IO mouth is connected, the output of encoder with the input of transistor array unit is connected, the output of transistor array unit corresponds and is connected to every group relay module first relay second relay and the coil of fourth relay, excitation source control module includes the field effect transistor, the grid of field effect transistor with TAG measurement module 2's IO mouth is connected, the source ground connection of field effect transistor, the drain electrode of field effect transistor corresponds and is connected to a set of relay module the coil of third relay. Therefore, the encoder receives the control signal and outputs the corresponding level state, so that the on-state of the relay for controlling each signal channel in the channel conversion module is controlled. The eight input ends of the transistor array unit are connected with the output end of the encoder, and then a larger driving current is provided to drive the mechanical relay. And controlling the third relay through the excitation source control module so as to provide an excitation source for the corresponding product measuring module, so that the coil works to test.
In this embodiment, the TAG measurement module 2 is a simplified module of an LCR meter, the test principle is the same as that of the LCR meter, as shown in fig. 4, the TAG measurement module 2 includes an FPGA module, a GPIO module, a signal source module, an amplification module, a balanced impedance module, a multi-way selection switch module, and a high-speed ADC module, which are arranged on a board card structure, the FPGA module is configured to transfer and process data of each module, and the GPIO module is connected between the FPGA module and an IO interface module to perform expansion of an IO port and signal transmission; the signal source module is communicated with the FPGA module and generates a signal source to the HC port, wherein the signal source is a voltage source or a current source, and a coupling switch is also arranged between the signal source module and the HC port; the input end of the amplification module is connected with the LP port and the balanced impedance module to compare a read-back signal with an excitation loop signal and feed back an error to the FPGA module, and the output end of the amplification module is connected with the FPGA module; the balanced impedance module comprises a plurality of high-precision resistors with different resistance values and is used for carrying out attenuation adjustment on excitation source signals, the output end of the balanced impedance module is connected with the FPGA module, and the input end of the balanced impedance module is connected with the LC port; the output ends of the HP port, the LP port, the LC port and the balanced impedance module are respectively connected to a plurality of input ends of the multi-path selection switch module, and the high-speed ADC module converts path signals switched by the multi-path selection switch module and feeds the path signals back to the FPGA module.
In this embodiment, the measurement circuit system further includes a power adapter 8, and the power adapter 8 is electrically connected to the control circuit board 1.
In this embodiment, the measurement circuit system further includes a network switch 9, a computer 10 and a product two-dimensional code scanning gun 11, the network switch 9 is in signal connection with the TAG measurement module 2, the computer 10 is in signal connection with the network switch 9, and the product two-dimensional code scanning gun 11 is in signal connection with the computer 10.
In this embodiment, the power module further includes a dc switching buck regulator model TPS5430 DDA.
In this embodiment, a plurality of product measurement module 3 is used for measuring a plurality of inductance coils respectively, control circuit board 1 is used for switching TAG measuring signal and inserts these three kinds of coils respectively, TAG measurement module 2 is used for measuring various impedance parameters such as inductance, electric capacity, resistance, phase place, consequently can pass through control circuit board 1's switching realizes multichannel simultaneous measurement's purpose, has improved work efficiency widely, and the flexibility is high, is fit for the data acquisition and the arrangement of automatic production line, has reduced measuring occupation of land space and cost, and the instrument interface wire rod of measuring the use also need not customize the purchase in addition, and purchase cycle and the degree of difficulty have also been shortened simultaneously to the flexibility of this kind of application.
Claims (7)
1. The utility model provides a measurement circuitry suitable for camera inductance coils which characterized in that: the device comprises a control circuit board (1), a TAG measuring module (2) and a plurality of product measuring modules (3), wherein the product measuring modules (3) are in signal connection with the TAG measuring module (2), and the TAG measuring module (2) is in signal connection with the control circuit board (1);
the product measuring module (3) comprises a pin adapter plate (4) and a signal adapter plate (5), the pin adapter plate (4) is in signal connection with the signal adapter plate (5), and the signal adapter plate (5) is in signal connection with the control circuit board (1);
the signal adapter plate (5) is used for measuring signal fan-out and coil winding direction electromagnetic induction circuits;
the pin adapter plate (4) is used for connecting signals transmitted by the signal adapter plate (5) and measuring the detected induction coil (12) through a connection test;
the control circuit board (1) is used for switching TAG measuring signals to be respectively connected into the product measuring modules (3);
the TAG measuring module (2) is used for measuring various impedance parameters of the detected induction coil (12).
2. The measurement circuitry of claim 1, wherein the circuitry comprises: the product measuring module (3) further comprises a board-to-board connector (6), and the signal adapter board (5) is in signal connection with the control circuit board (1) through the board-to-board connector (6).
3. The measurement circuitry suitable for use in a camera inductance coil of claim 1, wherein: the control circuit board (1) comprises a power supply module and a channel conversion module, wherein the power supply module is used for converting input voltage into working voltage required by each module and providing stable power supply voltage for each module; the channel switching module is used for switching a loop of a detected induction coil (12) to the TAG measuring module (2) through the relay module (7) to measure.
4. The measurement circuitry suitable for use in a camera inductance coil of claim 1, wherein: be provided with needle (14) on needle keysets (4) on needle keysets (13) and the Lpot, be provided with needle (15) under Hcur and needle (16) under Lcur on signal keysets (5), be provided with Hcur port, hpot port, lcur port and Lpot port on TAG measurement module (2), needle (13) on Hpot, needle (14) on the Lpot needle (15) under Hcur needle (16) under Lcur respectively with the Hpot port the Lpot port, the Hcur port and Lcur port signal connection.
5. The measurement circuitry of claim 1, wherein the circuitry comprises: the measurement circuit system further comprises a power adapter (8), and the power adapter (8) is electrically connected with the control circuit board (1).
6. The measurement circuitry of claim 1, wherein the circuitry comprises: the measurement circuit system further comprises a network switch (9), a computer (10) and a product two-dimension code scanning gun (11), the network switch (9) is in signal connection with the TAG measurement module (2), the computer (10) is in signal connection with the network switch (9), and the product two-dimension code scanning gun (11) is in signal connection with the computer (10).
7. The measurement circuitry suitable for use in a camera inductance coil of claim 3, wherein: the power supply module also comprises a direct current switch step-down voltage regulator with the model number TPS5430 DDA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221241125.XU CN217954573U (en) | 2022-05-23 | 2022-05-23 | Measurement circuit system suitable for camera inductance coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221241125.XU CN217954573U (en) | 2022-05-23 | 2022-05-23 | Measurement circuit system suitable for camera inductance coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217954573U true CN217954573U (en) | 2022-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221241125.XU Active CN217954573U (en) | 2022-05-23 | 2022-05-23 | Measurement circuit system suitable for camera inductance coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217954573U (en) |
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- 2022-05-23 CN CN202221241125.XU patent/CN217954573U/en active Active
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