CN210465471U - Ring broken line revolution speed transducer - Google Patents
Ring broken line revolution speed transducer Download PDFInfo
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- CN210465471U CN210465471U CN201921975608.0U CN201921975608U CN210465471U CN 210465471 U CN210465471 U CN 210465471U CN 201921975608 U CN201921975608 U CN 201921975608U CN 210465471 U CN210465471 U CN 210465471U
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Abstract
A circular broken line rotation speed sensor belongs to the field of sensors; the existing sensor has a complex structure, and linear signals can be extracted; the device comprises a circular ring with an arc-shaped excitation coil, wherein the circular ring is arranged into a cross shape, and the distribution radius of the axial circular ring is larger than that of the radial circular ring; the exciting coil is printed on the exciting coil flexible circuit board; the excitation coil flexible circuit board is fixed in the housing, and a stator processing circuit is arranged in a housing handle arranged on the housing; the housing fixes the inner exciting coil flexible circuit board and the stator processing circuit through a housing handle and is arranged and attached to the shaft to be measured; the receiving coil is in a broken line shape, a rotor signal processing circuit is arranged on the rotor circuit board, and the receiving coil and the rotor circuit board are both arranged on the shaft to be measured and are arranged below the housing and can rotate along with the shaft to be measured; the signal that this device drawed is high low level form, simple structure.
Description
Technical Field
The utility model belongs to the sensor field especially relates to a ring broken line speed sensor.
Background
The sensor is a detection device which can sense the measured information and convert the sensed information into an electric signal or other information in a required form according to a certain rule to output so as to meet the requirements of information transmission, processing, storage, display, recording, control and the like.
The sensor features include: miniaturization, digitalization, intellectualization, multifunction, systematization and networking. The method is the first link for realizing automatic detection and automatic control. The existence and development of the sensor enable the object to have the senses of touch, taste, smell and the like, and the object slowly becomes alive. Generally, the sensor is classified into ten categories, i.e., a thermosensitive element, a photosensitive element, a gas-sensitive element, a force-sensitive element, a magnetic-sensitive element, a humidity-sensitive element, a sound-sensitive element, a radiation-sensitive element, a color-sensitive element, and a taste-sensitive element, according to their basic sensing functions.
For the measurement of the rotating speed, the existing non-contact sensor for measuring the rotating speed is based on the eddy current principle, the eddy current is non-linear, and a linear signal can be extracted only through a complex structural design. And the inner space of the sensor has an alternating magnetic field of an exciting coil and an eddy current field of the rotor, and a complex decoupling structure needs to be designed.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the defects of the prior art, and provides a circular ring fold line rotating speed sensor, the inside of the sensor of the device only has the alternating magnetic field of the exciting coil, and the deconstruction is not needed, and the device has simple structure and high precision because the magnetic field focuses on a point and the extracted signal is in a high-low level form; the technical problem that the linear signal can be extracted only by a complex decoupling structure of the existing sensor is effectively solved.
The technical scheme of the utility model:
a circular ring broken line rotating speed sensor comprises a shaft to be measured, an exciting coil, a housing handle, a receiving coil and a rotor circuit board; the excitation coil is an arc-shaped ring, the ring is arranged into a cross shape, and the distribution radius of the axial ring is larger than that of the radial ring; the excitation coil is printed on the excitation coil flexible circuit board, and a plurality of layers of excitation coil flexible circuit boards are stacked layer by layer; the excitation coil flexible circuit board is fixed in the housing, a housing handle is arranged on the housing, and a stator processing circuit is arranged in the housing handle; the housing fixes the inner excitation coil flexible circuit board and the stator processing circuit through a housing handle and is arranged and attached to the shaft to be measured; the receiving coil is in a broken line shape and is printed on a receiving coil flexible circuit board, and a rotor signal processing circuit is printed on the rotor circuit board; receiving coil and rotor circuit board all set up on waiting to survey the axle, and just under the housing, can rotate along with waiting to survey the axle.
Further, the stator processing circuit comprises a stator power supply module, a stator wireless receiving module and a stator chip module.
Further, the rotor signal processing circuit comprises a rotor power supply module, a rotor wireless transmitting module and a rotor chip module.
Furthermore, the cover shell handle is provided with an opening for leading out a lead.
The utility model discloses following beneficial effect has for prior art:
the utility model provides a ring broken line revolution speed transducer, this device makes every exciting coil exert 10 MHz's high frequency sinusoidal current through setting up a plurality of exciting coil on waiting to examine the axle, and the current amplitude of every exciting coil is confirmed according to its position, according to the line principle of the stack of magnetic field, makes magnetic field focus on the axle surface of awaiting measuring a bit, has solved effectively that current sensor needs complicated decoupling zero structure, can extract the technical problem of linear signal;
the sensor of the device only has an alternating magnetic field of the exciting coil, and the device does not need deconstruction, has simple design structure, small volume and high measurement precision; the device has the advantages that the magnetic field is focused on one point, the rotating speed data can be obtained by collecting the magnitude of the induction voltage of the receiving coil, and the extracted signals are in a high-low level form, so that the device is simple in structure and high in precision;
this device adopts signal wireless transmission, has solved the technical problem that current sensor warp restrainted the transmission to this device requires simply to the mounted position.
Drawings
FIG. 1 is an exploded view of the structure of the present invention;
FIG. 2 is a front view of the excitation coil;
FIG. 3 is a side view of the housing;
FIG. 4 is a front view of the receive coil;
FIG. 5 is an installation view of the present invention;
FIG. 6 is a stator power module circuit diagram;
FIG. 7 is a circuit diagram of a stator wireless receiving module;
FIG. 8 is a stator chip module circuit diagram;
FIG. 9 is a rotor power module circuit diagram;
FIG. 10 is a circuit diagram of a rotor wireless transmission module;
fig. 11 is a rotor chip module circuit diagram.
In the figure: 1 shaft to be measured, 2 exciting coils, 3 enclosers, 4 enclosers, 5 receiving coils and 6 rotor circuit boards.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Detailed description of the invention
A circular ring broken line rotating speed sensor is shown in figures 1-5 and comprises a shaft to be measured 1, an exciting coil 2, a housing 3, a housing handle 4, a receiving coil 5 and a rotor circuit board 6; the magnetic field focusing mode is that the exciting coil adopts an arc-shaped ring, the ring is arranged into a cross shape, and the distribution radius of the axial ring is larger than that of the radial ring; the excitation coil is printed on the excitation coil flexible circuit board, and a plurality of layers of excitation coil flexible circuit boards are stacked layer by layer; the excitation coil flexible circuit board is fixed inside the housing 3, a housing handle 4 is arranged on the housing 3, and a stator processing circuit is arranged in the housing handle 4; the housing 3 fixes the inner excitation coil flexible circuit board and the stator processing circuit through a housing handle 4 and is arranged and attached to the shaft 1 to be measured, and the housing 3, the excitation coil 2 and the stator processing circuit form a stator of the sensor; the receiving coil 5 is in a broken line shape and is printed on a receiving coil flexible circuit board, and a rotor signal processing circuit is printed on the rotor circuit board 6; the receiving coil 5 and the rotor circuit board 6 are both arranged on the shaft 1 to be measured and below the housing 3, and can rotate along with the shaft 1 to be measured.
Specifically, the stator processing circuit comprises a stator power supply module, a stator wireless receiving module and a stator chip module.
As shown in fig. 7, the stator wireless receiving module includes a radio frequency chip pin SCK of PCH7900 connected to an RX port, a radio frequency chip pin EN connected to the SCK port and a resistor R8, a radio frequency chip pin XTAL2 connected to a capacitor C14 and an external crystal oscillator Y1, the radio frequency chip pin XTAL1 and a capacitor C16 connected to the Y1, the radio frequency chip pin VDD connected to a +5C power supply and a capacitor C18, and the radio frequency chip pin VREG connected to a radio frequency chip pin VDDA, capacitors C21 and C22, and a radio frequency chip pin VDDP, respectively; a pin PAOUT of the radio frequency chip is respectively connected with an inductor L2 and a capacitor C15, an L2 is respectively connected with a C19 and an L3, an L3 is connected with a capacitor C20 and an antenna in series through a capacitor C17, a pin SDIO of the radio frequency chip is connected with an MIS0 port, and a pin CKOUT of the radio frequency chip is respectively connected with an MOSI port and a resistor R7; the R7, the R8, the C14, the C16, the C18, the C21, the C22, the C19, the C20 and the C15, a pin VSSPA and a pin VSS of the radio frequency chip are connected with GND; the module is used for rapidly receiving data sent by the rotor circuit board.
As shown IN fig. 6, the stator power supply module includes a battery panel P1A with a model P320A, a port + BB of which is respectively connected to capacitors C2 and C22 and one end of an iron-nickel phase ring, the other end of one end of the iron-nickel phase ring is respectively connected to C3 and C4, a resistor R3 and one end of a relay K1 with a model HFKW012-1HW, the other ends of the capacitors C2, C22, C3 and C4 are respectively connected to a port E1 of the battery panel P1A, the other end of the R3 is connected IN series to a diode D2, a D2 is respectively connected to C5, a zener diode D3 and a transistor Q1 with a model IRF5505, and Q1 is respectively connected to a pin IN of a voltage stabilizing chip with a model NCV4275, a capacitor C8, a voltage stabilizing capacitor C6 and a resistor R5; the pin OUT of U1 is connected to pin RESET of U1 through a resistor R4; a terminal DELAY of U1 is connected with a capacitor C9, a terminal C9 is respectively connected with a terminal C8 and a terminal C6, a resistor R6 and a triode Q3 with a model number of DTD143EC are sequentially connected in series with R5, and a terminal 3 of K1 is respectively connected with a terminal 4 of K1 and the triode Q2 through a diode D4; the module is used for quickly converting an externally provided 12V voltage into a 5V voltage required by a sensor.
The stator chip module comprises pins 37 of a single chip U2, a SENT1 port and a resistor R76 are respectively connected, pins 50 of U2 are respectively connected with a SENT2 port and a resistor R75, pins 29 of U2 are respectively connected with a PowerCheck port and a capacitor C17, R75 is respectively connected with pins 25 of capacitors C13 and U2, R76 is respectively connected with pins 28 and C16 of U2, and C13 is respectively connected with C14, C16, C17, C18, C19, C20 and GND, as shown in FIG. 8; a pin 63 of the U2 is respectively connected with a resistor R21 and a capacitor C21, R21 is respectively connected with a +5V power supply and a capacitor C22, and C22 is respectively connected with GND and C21; pin 11 of U2 is connected to GND through resistor R22; pin 8 of U2 is connected to one end of C28, one end of C26 and one end of inductor L2 respectively, the other end of L2 is connected to one end of C23, one end of L3, one end of L4 and one end of C24 respectively, the other end of L3 is connected to one end of C27, one end of pin 41 of U2 and one end of C29 respectively, and the other end of L4 is connected to one end of C25, one end of C30 and pin 7 of U2 respectively; the other ends of the C23, the C24, the C26, the C27, the C25, the C28, the C29 and the C30 are connected with GND; pin 40, pin 9 and pin 10 of U2 are all connected with GND, pin 60 of U2 is connected with a RelaySW port, and pin 44, pin 45, pin 46 and pin 53 of U2 are respectively connected with an RX port, a MISO port, a MOSI port and an SCK port; pin 17, pin 14, pin 1, pin 18, pin 19, pin 20, pin 21, pin 52, and pin 51 of U2 are connected to the PWM _ RESET port, LampOn port, PowerOn port, PWMH port, PWML port, torqueue port, RATIONRRATE port, CANRX port, and CANTX port, respectively; the module is used for rapid data processing and rapid transmission of torque and rotating speed data, and can provide an excitation source for the excitation coil.
Specifically, the rotor signal processing circuit comprises a rotor power supply module, a rotor wireless transmitting module and a rotor chip module, and is used for signal acquisition, signal processing, wireless power supply and wireless transmission.
The rotor power supply module is shown in fig. 9, and includes a 5V power supply connected to one ends of resistors R1 and R2, respectively, the other end of R1 connected to one end of a capacitor C1, one end of a resistor R3, and a triode Q1 with a model number of 2N3904, the other end of C1 connected to one end of a capacitor C4 and one end of a capacitor C11, the other end of C4 connected to one end of a capacitor C2, one end of a capacitor C3, one end of a resistor R4, the other end of a resistor R3, and GND, the other end of C2 connected to the other end of C11, the other end of R2, and Q1, and the other end of R4 connected to the other ends of Q1 and C3, respectively; the module is used for rapidly providing stable 5V voltage and filtering for the rotor circuit board;
as shown in fig. 11, the rotor chip module includes a single chip microcomputer U0 with a model of PIC16F1829, a pin 1 of which is connected to a capacitor 5V power supply, one end of a capacitor C18, and one end of a capacitor C19, a pin 4 of a U0 is connected to one end of a resistor R29 and one end of a capacitor C13, the other end of a R29 is connected to a 5V power supply, a pin 9, a pin 11, a pin 12, and a pin 13 of a U0 are connected to a MOSI port, an SCK1 port, an RX port, and an MISO port, a pin 17 of a U0 is connected to one end of a resistor R38, one end of a capacitor C7, and one end of a diode D3, another end of a D3 is connected to one end of a resistor R16 and a pin 1 of an amplifier U2A with a model of an AD822AR, another end of a R16 is connected to one end of a pin 2 of a resistor R A and one end of a resistor R A, a pin 3 of a U2A is connected to one end of a resistor R A and one end of the other end, The other end of R38, the other end of C7, pin 4 of U2A and pin 20 of U0 are all connected with GND respectively, the other end of R14 is connected with the C end, and the other end of R13 is connected with the carrier end; the module is used for accurately acquiring the voltage of the rotor coil and rapidly transmitting data to the rotor wireless transmitting module.
As shown in fig. 10, the rotor wireless transmission module includes a radio frequency chip pin SCK of PCH7900 connected to an RX port, a radio frequency chip pin EN connected to the SCK port and a resistor R8, a radio frequency chip pin XTAL2 connected to a capacitor C15 and an external crystal oscillator Y1, the radio frequency chip pin XTAL1 and a capacitor C17 connected to the Y1, the radio frequency chip pin VDD connected to a +5C power supply and a capacitor C19, and the radio frequency chip pin VREG connected to a radio frequency chip pin VDDA, capacitors C22 and C23, and a radio frequency chip pin VDDP, respectively; a pin PAOUT of the radio frequency chip is respectively connected with an inductor L2 and a capacitor C16, an L2 is respectively connected with a C20 and an L3, an L3 is connected with a capacitor C21 and an antenna in series through a capacitor C18, a pin SDIO of the radio frequency chip is connected with an MIS0 port, and a pin CKOUT of the radio frequency chip is respectively connected with an MOSI port and a resistor R7; the R7, the R8, the C15, the C17, the C19, the C22, the C23, the C20, the C21 and the C16 as well as a pin VSSPA and a pin VSS of the radio frequency chip are all connected with GND; the module is used for rapidly and accurately sending data acquired by the rotor chip module to the stator wireless receiving module.
Specifically, the rotor signal processing circuit further comprises a receiving coil interface for connecting the receiving coil with the rotor chip module.
Specifically, the stator power module is connected with the stator chip module, the stator chip module is connected with the stator wireless receiving module, the stator wireless receiving module is connected with the rotor wireless transmitting module, the rotor wireless transmitting module is connected with the rotor chip module, and the rotor chip module is connected with the rotor power module.
Specifically, an opening wiring harness opening 9 is formed in the housing handle 4 and used for leading out a lead, a stator fixing hole 7 is formed in the housing handle 4, and the excitation coil flexible circuit board and the stator processing circuit are fixed through screwing screws.
In particular, the casing 3 comprises a stator processing circuit fixing surface 8.
The working principle is as follows: the exciting coil 2 is electrified with high-frequency alternating current to generate a space alternating magnetic field, and the magnetic field is focused on one point on the shaft 1 to be measured according to the structure of the exciting coil 2, wherein the point is just positioned in the receiving coil 5; the locus of the point is a circle along with the rotation of the shaft 1 to be measured; when the shaft 1 to be measured does not rotate, the receiving coil 5 does not cut the magnetic field, and the induction voltage is zero; when the shaft 1 to be measured rotates, the receiving coil 5 cuts the magnetic field to generate induced voltage; according to the following formula:
U＝BLV
the rotor signal processing circuit collects voltage signals, and the rotating speed of the shaft 1 to be measured is obtained through analysis of the signals.
Claims (4)
1. A circular broken line rotating speed sensor is characterized by comprising a shaft to be measured (1), an exciting coil (2), a housing (3), a housing handle (4), a receiving coil (5) and a rotor circuit board (6); the excitation coil (2) is an arc-shaped ring, the ring is arranged into a cross shape, and the distribution radius of the axial ring is larger than that of the radial ring; the exciting coil (2) is printed on the exciting coil flexible circuit board; the excitation coil flexible circuit board is fixed in the housing (3), and the excitation coil flexible circuit boards of a plurality of layers are stacked layer by layer; a housing handle (4) is arranged on the housing (3), and a stator processing circuit is arranged in the housing handle (4); the housing (3) fixes the internal excitation coil flexible circuit board and the stator processing circuit through a housing handle (4) and is arranged and attached to the shaft (1) to be measured; the receiving coil (5) is in a broken line shape and is printed on a receiving coil flexible circuit board, and a rotor signal processing circuit is printed on the rotor circuit board (6); receiving coil (5) and rotor circuit board (6) all set up on waiting to survey axle (1), and in housing (3) below, can rotate along with waiting to survey axle (1).
2. The circular broken line rotating speed sensor according to claim 1, wherein the stator processing circuit comprises a stator power supply module, a stator wireless receiving module and a stator chip module.
3. The circular ring broken line rotating speed sensor according to claim 1, wherein the rotor signal processing circuit comprises a rotor power supply module, a rotor wireless transmission module and a rotor chip module.
4. The circular broken line rotating speed sensor according to claim 1, characterized in that the casing handle (4) is provided with an opening for leading out a lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921975608.0U CN210465471U (en) | 2019-11-15 | 2019-11-15 | Ring broken line revolution speed transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921975608.0U CN210465471U (en) | 2019-11-15 | 2019-11-15 | Ring broken line revolution speed transducer |
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| Publication Number | Publication Date |
|---|---|
| CN210465471U true CN210465471U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921975608.0U Active CN210465471U (en) | 2019-11-15 | 2019-11-15 | Ring broken line revolution speed transducer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110687313A (en) * | 2019-11-15 | 2020-01-14 | 东北林业大学 | Circular ring broken line rotating speed sensor and method thereof |
| CN112768887A (en) * | 2020-12-22 | 2021-05-07 | 中国船舶重工集团公司第七一一研究所 | Antenna for wireless sensor of motion mechanism and wireless sensor with antenna |
-
2019
- 2019-11-15 CN CN201921975608.0U patent/CN210465471U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110687313A (en) * | 2019-11-15 | 2020-01-14 | 东北林业大学 | Circular ring broken line rotating speed sensor and method thereof |
| CN110687313B (en) * | 2019-11-15 | 2023-09-15 | 东北林业大学 | Circular ring broken line rotating speed sensor and method thereof |
| CN112768887A (en) * | 2020-12-22 | 2021-05-07 | 中国船舶重工集团公司第七一一研究所 | Antenna for wireless sensor of motion mechanism and wireless sensor with antenna |
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Effective date of registration: 20211101 Address after: 150066 A 4, No. 20 Xinghai Road, Ping Fang District, Harbin, Heilongjiang. Patentee after: Harbin ciceju Technology Co.,Ltd. Address before: 150040 No. 26 Hexing Road, Xiangfang District, Heilongjiang, Harbin Patentee before: NORTHEAST FORESTRY University |