CN113566689B - Displacement sensor capable of monitoring transverse direction and longitudinal direction simultaneously - Google Patents
Displacement sensor capable of monitoring transverse direction and longitudinal direction simultaneously Download PDFInfo
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- CN113566689B CN113566689B CN202110867830.4A CN202110867830A CN113566689B CN 113566689 B CN113566689 B CN 113566689B CN 202110867830 A CN202110867830 A CN 202110867830A CN 113566689 B CN113566689 B CN 113566689B
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 77
- 238000012544 monitoring process Methods 0.000 title abstract description 21
- 238000002955 isolation Methods 0.000 claims description 33
- 230000005291 magnetic effect Effects 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 9
- 230000005674 electromagnetic induction Effects 0.000 claims description 8
- 230000007613 environmental effect Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 3
- 230000005294 ferromagnetic effect Effects 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000013499 data model Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
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Abstract
The invention provides a displacement sensor for simultaneously monitoring transverse and longitudinal directions, which at least comprises a shell, a limiting block and a sensing module positioned in the shell, wherein the shell and the limiting block are directly or fixedly arranged on two tested parts through a mounting cushion block; the front end of the longitudinal sliding base body is fixed on the limiting block; the front end of the transverse sliding base body is fixed with a connecting rod, and the connecting rod is in close contact with the limiting block. The displacement sensor has the advantages of high monitoring precision, small measurement error and wide application range.
Description
Technical Field
The invention relates to the field of displacement sensors, in particular to a displacement sensor for simultaneously monitoring transverse and longitudinal directions.
Background
The sensor is used for converting various measured physical quantities into numbers, wherein the displacement sensor is an important member of the class. An important advantage of digital displacement sensors is that they facilitate the direct feeding of signals into a computer system. Such sensors are rapidly evolving and increasingly being used. The method has the advantages of easy realization of digitalization, high precision, strong anti-interference capability, no human reading error, convenient installation, reliable use and the like, and is increasingly widely applied to the industries of machine tool processing, detection instruments, aviation and the like. The displacement sensor is a sensor for continuously monitoring high-precision relative displacement, and belongs to the category of displacement sensors.
The existing displacement sensor for monitoring the relative displacement between two measured parts has the following defects: 1. the precision of technical products is generally low, and the high-precision relative displacement monitoring requirement of continuously monitoring products at the micron-scale precision cannot be met; 2. the product is limited by the uneven measuring surface and the relative deviation, and the relative displacement between two parts with larger phase difference and with the sensor mounting surface not on the same plane can not be accurately measured. In order to solve the problems, chinese patent CN202010194649 discloses a high-precision displacement sensor for gap monitoring, which is of a split type structural design, can overcome the influence of uneven measurement mounting surface and relative break difference, and has the advantages of high measurement precision and small measurement stability error, and meanwhile, the measurement precision of the sensor can reach 0.5 mu m. However, the sensor can only monitor the relative displacement of two parts in one direction, but cannot monitor the relative displacement of two parts in both the longitudinal and transverse directions.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the displacement sensor for simultaneously monitoring the transverse and longitudinal directions, and the displacement sensor can monitor the relative displacement of two parts in the longitudinal and transverse directions and has the advantages of high monitoring precision, small measuring error and wide application range.
The technical scheme adopted for achieving the purposes of the invention is as follows:
the utility model provides a displacement sensor of simultaneous monitoring horizontal and vertical, at least, including the casing, stopper and be located the sensing module of casing, wherein casing and stopper are fixed in respectively on two measured parts, and sensing module's one end stretches out from the casing and is fixed in on the stopper, stopper and casing are fixed in on two measured parts directly or through the installation cushion, sensing module includes vertical sensing unit, keeps apart backup pad and horizontal sensing unit, and wherein vertical sensing unit includes vertical PCB subassembly, vertical sliding matrix, vertical high-precision magnet and vertical slide bar, and horizontal sensing unit includes horizontal PCB subassembly, horizontal sliding matrix, horizontal high-precision magnet and horizontal slide bar, keep apart the backup pad and be fixed in on the casing, vertical PCB subassembly and horizontal PCB subassembly are located respectively below the backup pad and with keep apart backup pad fixed connection, vertical PCB subassembly, horizontal PCB subassembly and keep apart the backup pad all are fixed with between the backup pad;
the longitudinal sliding base body and the transverse sliding base body are respectively positioned on one side, far away from the isolation supporting plate, of the longitudinal PCB assembly and the transverse PCB assembly, a longitudinal slideway hole is formed in the longitudinal sliding base body along the length direction of the sensor, a longitudinal sliding rod is arranged in the longitudinal slideway hole and is fixed on the shell, the longitudinal sliding base body slides along the longitudinal sliding rod, a longitudinal high-precision magnet is fixed on one side, close to the longitudinal PCB assembly, of the longitudinal sliding base body and synchronously moves along with the longitudinal sliding base body, the front end of the longitudinal sliding base body is fixedly connected with a connector, and the front end of the connector is fixed on the limiting block; the transverse sliding base body is provided with a transverse slideway hole along the width direction of the sensor, a transverse sliding rod is arranged in the transverse slideway hole and is fixed on the shell, the transverse sliding base body slides along the transverse sliding rod, a transverse high-precision magnet is fixed on one surface of the transverse sliding base body, which is close to the transverse PCB assembly, and synchronously moves along with the transverse sliding base body, the front end of the transverse sliding base body is fixedly connected with a connecting rod, the connecting rod is tightly contacted with a limiting block and moves back and forth along the direction perpendicular to the installation direction of the sensor under the driving of the limiting block, and the contact surface of the limiting block, the connecting head and the connecting rod is a smooth surface; limiting springs are sleeved at two ends of the longitudinal slide bar and the transverse slide bar, and the limiting springs limit the longitudinal slide base body or the transverse slide base body to be positioned at the middle position of the longitudinal slide bar or the transverse slide bar in a free state.
The sensor mounting direction is provided with the mounting hole along on the stopper, and the mounting hole runs through the stopper, and the connecting rod is connected in the mounting hole and with mounting hole in close contact, the surface of mounting hole is smooth.
The connecting rod is provided with two, and the connecting rod is located the both sides of stopper and with stopper in close contact with.
The connecting rod is provided with fixed connection's protruding piece and adjusting screw on being close to the side of stopper, through adjusting screw adjusting protruding piece's the height that stretches out for protruding piece and stopper surface in close contact with, protruding piece's surface is smooth.
The longitudinal PCB component, the transverse PCB component, the isolation supporting plate and the isolation gasket are fixedly connected or bonded through bolts.
The two sides of the isolation supporting plate are fixedly connected with the lug plates, the isolation supporting plate is fixedly connected with the shell through the lug plates, and the isolation supporting plate is made of high-magnetic-resistance materials.
The limiting block or the shell is connected with the installation cushion block through adhesion or magnet adsorption.
The front end of the connector is connected with a magnet, the connector and the limiting block are fixedly connected through the magnet, and the magnet is a ferromagnetic permanent magnet.
The longitudinal PCB assembly and the transverse PCB assembly comprise a high-precision electromagnetic induction chip for capturing magnetic field change signals generated by movement of a longitudinal high-precision magnet and a transverse high-precision magnet, a singlechip for processing the captured magnetic field change signals into displacement signals and sending the displacement signals to an upper computer, a temperature sensing chip for collecting environmental temperature data, a vibration sensing chip for collecting environmental vibration signals and an electromagnetic interference prevention circuit, wherein the temperature sensing chip and the vibration sensing chip are connected with the singlechip.
Compared with the prior art, the technical scheme provided by the invention has the following advantages: 1. the displacement sensor provided by the invention can be used for simultaneously testing the longitudinal and transverse relative displacement between two tested components, and the test time and the test position for testing the longitudinal displacement and the transverse displacement are completely consistent, so that the relative displacement of the two components at the same time can be accurately reflected.
2. According to the invention, the isolation support plate made of high-magnetic-resistance materials is arranged between the longitudinal PCB assembly and the transverse PCB assembly, so that the influence of the longitudinal high-precision magnet on the magnetic field around the high-precision electromagnetic induction chip on the transverse PCB assembly and the influence of the transverse high-precision magnet on the magnetic field around the high-precision electromagnetic induction chip on the longitudinal PCB assembly can be effectively reduced or eliminated, and the monitoring precision is further improved.
3. The displacement sensor provided by the invention adopts a split type design, and the displacement sensor is integrally positioned on the same plane through the mounting cushion blocks fixedly connected with the shell or the limiting block, so that the accurate positioning and mounting of the sensor are convenient under the condition that the mounting surfaces of the two parts are not positioned on the same plane and the height difference is large; meanwhile, the relative displacement between two measured parts with different distances can be realized by adjusting the lengths of the longitudinal sliding base body and the transverse sliding base body, and the sensor has wide application range.
4. According to the invention, the longitudinal sliding base body is connected to the two longitudinal sliding rods, the transverse sliding base body is connected to the two transverse sliding rods, the accuracy of the sliding direction is high, the relative displacement between the two parts can be accurately transmitted, and the device is simple in principle and reliable in structure.
5. The invention adopts the high-precision electromagnetic induction chip to induce the magnetic field change generated by the movement of the high-precision magnet along with the sliding substrate, and can realize the high-precision test of real-time displacement.
Drawings
FIG. 1 is a schematic view showing the internal structure of a displacement sensor for monitoring both the lateral and longitudinal directions in embodiment 1;
FIG. 2 is a schematic view showing the external structure of a displacement sensor for monitoring both the lateral and longitudinal directions in example 1;
FIG. 3 is a top view showing the internal structure of a displacement sensor for monitoring both the lateral and longitudinal directions in example 1;
FIG. 4 is a schematic view showing the connection of the mounting pad and the housing in embodiment 1;
fig. 5 is a schematic diagram showing the fixed connection of the longitudinal PCB assembly, the transverse PCB assembly and the isolation support plate in embodiment 1;
FIG. 6 is a schematic diagram showing the connection of the longitudinal slide base, the longitudinal high-precision magnet and the longitudinal slide bar in example 1;
FIG. 7 is a schematic view showing the structure of a lateral sliding base in example 1;
wherein (a) and (b) are respectively structural diagrams in different directions;
FIG. 8 is a schematic diagram showing the connection of the transverse sliding base, the transverse high-precision magnet and the transverse sliding rod in example 1;
FIG. 9 is a schematic view showing the external structure of a displacement sensor for monitoring both the lateral and longitudinal directions as provided in embodiment 2;
FIG. 10 is a schematic view showing the structure of a lateral sliding base in example 2;
in the figure: 1-shell, 2-limited block, 3-installation cushion block, 4-longitudinal sensing unit, 41-longitudinal PCB assembly, 42-longitudinal sliding base, 421-longitudinal slideway hole, 422-connector, 43-longitudinal high-precision magnet, 44-longitudinal slide bar, 5-transverse sensing unit, 51-transverse PCB assembly, 52-transverse sliding base, 521-transverse slideway hole, 522-connecting rod, 53-transverse high-precision magnet, 54-transverse slide bar, 6-isolation supporting plate, 61-lug plate, 7-bolt, 8-isolation pad, 9-limited spring, 10-magnet, 11-convex block and 12-adjusting screw.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific examples, but the scope of the present invention is not limited to the following examples.
Example 1
The structure of the displacement sensor for simultaneously monitoring the transverse direction and the longitudinal direction provided by the embodiment is shown in fig. 1 to 3, and at least comprises a shell 1, a limiting block 2 and a sensing module positioned in the shell. The shell and the limiting block are respectively fixed on two tested components and used for monitoring displacement changes of the two tested components, specifically, when the mounting surfaces of the limiting block and the shell are on the same plane, the limiting block and the shell are directly fixed on the two tested components, and when the mounting surfaces of the limiting block and the shell are on different planes, the limiting block and the shell are fixed on the two tested components through the mounting cushion block 3, as shown in fig. 2 and 4, and the whole sensor after the completion of the mounting is on the same plane by adjusting the thickness of the mounting cushion block connected with the limiting block or the shell. In this embodiment, the stopper or the housing is attached to the mounting pad by adhesion or magnet attachment.
The sensing module comprises a longitudinal sensing unit 4, an isolation supporting plate 6 and a transverse sensing unit 5, wherein the longitudinal sensing unit comprises a longitudinal PCB assembly 41, a longitudinal sliding base 42, a longitudinal high-precision magnet 43 and a longitudinal sliding rod 44; the lateral sensing unit comprises a lateral PCB assembly 51, a lateral sliding base 52, a lateral high precision magnet 53 and a lateral sliding bar 54.
The two sides of the isolation supporting plate are fixedly connected with the ear plates, the isolation supporting plate is fixedly connected with the shell through the ear plates 61, and the longitudinal PCB component and the transverse PCB component are respectively located above and below the isolation supporting plate and are fixedly connected with the isolation supporting plate, as shown in fig. 5, so that the longitudinal PCB component and the transverse PCB component are fixed on the shell. In this embodiment, the whole longitudinal sensing unit is located the below of keeping apart the backup pad, and the whole lateral sensing unit is located the top of keeping apart the backup pad, and during actual production, the holistic position of longitudinal sensing unit and lateral sensing unit can be changed at will. The isolation supporting plate is made of high-magnetic-resistance materials, and electromagnetic signals between the longitudinal sensing units and the transverse sensing units are prevented from being interfered with each other. Specifically, vertical PCB subassembly, horizontal PCB subassembly are fixed through bolted connection or bonding with the isolation backup pad, are fixed through the bolted connection that is located the four corners in this embodiment, and all are provided with isolation gasket 8 between vertical PCB subassembly, horizontal PCB subassembly and the isolation backup pad, and isolation gasket's setting has further reduced the possibility of electromagnetic signal mutual interference between vertical sensing unit and the horizontal sensing unit.
The longitudinal sliding base body and the transverse sliding base body are respectively positioned on one side, far away from the isolation supporting plate, of the longitudinal PCB assembly and the transverse PCB assembly, a longitudinal slideway hole 421 is formed in the longitudinal sliding base body along the length direction of the sensor, the longitudinal sliding rod is installed in the longitudinal slideway hole and fixed on the shell, limiting springs 9 are respectively sleeved at two ends of the longitudinal sliding rod, the longitudinal sliding base body is limited to be positioned at the middle position of the longitudinal sliding rod in a free state by the limiting springs, the longitudinal sliding base body slides along the longitudinal sliding rod, and the longitudinal high-precision magnet is fixed on one side, close to the longitudinal PCB assembly, of the longitudinal sliding base body and synchronously moves along with the longitudinal sliding base body, and the longitudinal sliding base body, the longitudinal high-precision magnet and the longitudinal sliding rod are connected as shown in fig. 6. The front end of vertical sliding base member is connected and is fixed with connector 422, and the front end of connector is fixed with on the stopper, the front end of connector is connected with magnet 10, and connector and stopper pass through the magnet and connect fixedly, the magnet is strong magnetism permanent magnet, can guarantee that vertical sliding base member and stopper contact is good, and when two parts of being surveyed take place vertical relative displacement, the stopper drives vertical sliding base member and removes. The contact surface of the limiting block and the connector is a smooth surface, so that when the two parts to be tested are subjected to transverse relative displacement, the limiting block and the connector are subjected to transverse relative movement, and the longitudinal sliding base body is not influenced.
The transverse sliding base body is provided with a transverse slideway hole 521 along the width direction of the sensor, the transverse sliding rod is arranged in the transverse slideway hole and fixed on the shell, two ends of the transverse sliding rod are sleeved with limiting springs, the limiting springs limit the middle position of the transverse sliding base body on the transverse sliding rod in a free state, the transverse sliding base body slides along the transverse sliding rod, the transverse high-precision magnet is fixed on one surface of the transverse sliding base body, which is close to the transverse PCB assembly, and synchronously moves along with the transverse sliding base body, and the transverse sliding base body, the transverse high-precision magnet and the transverse sliding rod are connected as shown in fig. 7 and 8. The front end fixedly connected with connecting rod 522 of horizontal slip base member, in this embodiment, the connecting rod is provided with two, and the connecting rod is located the both sides of stopper, be provided with fixed connection's protruding piece 11 and adjusting screw 12 on the side that the connecting rod is close to the stopper, adjust protruding piece's stretching out height through adjusting screw for protruding piece and stopper surface in close contact, the installation of the sensor of being convenient for, when two parts of being surveyed take place left or right horizontal relative displacement, the stopper drives left side connecting rod or right side connecting rod and removes, thereby drives horizontal slip base member and remove. The surface of the protruding block is smooth, so that when the two parts to be tested are subjected to longitudinal relative displacement, the limiting block and the connecting rod are subjected to longitudinal relative movement, and the transverse sliding base body is not influenced.
The longitudinal PCB assembly and the transverse PCB assembly comprise a high-precision electromagnetic induction chip for capturing magnetic field change signals generated by movement of a longitudinal high-precision magnet and a transverse high-precision magnet, a singlechip for processing the captured magnetic field change signals into displacement signals and sending the displacement signals to an upper computer, a temperature sensing chip for collecting environmental temperature data, a vibration sensing chip for collecting environmental vibration signals and an electromagnetic interference prevention circuit, wherein the temperature sensing chip and the vibration sensing chip are connected with the singlechip. The temperature sensing chip is a precision integrated digital temperature sensing chip, has the characteristic of high resolution, and has the measurement precision of +/-0.5 ℃. The temperature sensing chip firstly samples temperature data of an external environment, and then transmits a sampling value to the singlechip through an I2C protocol with the singlechip; the singlechip calculates the acquired temperature data and transmits the calculated temperature data to the upper computer through signal communication. The vibration sensing chip adopts an industry leading chip and has the characteristics of high resolution, extremely low power consumption and long-term stability; the resolution of the vibration sensing chip is 1mg, the measurement range is +/-5 g, and vibration quantities of an X axis, a Y axis and a Z axis can be collected simultaneously. The vibration sensing chip firstly samples external vibration signals, and then converts the external vibration signals into level signals and transmits the level signals to the singlechip; the singlechip calculates the acquired vibration data and transmits the calculated vibration data to the upper computer through signal communication. The temperature sensing chip and the vibration sensing chip can monitor environmental conditions in real time to acquire environmental temperature data and vibration data, through combining with a preset data model in the singlechip (the high-precision displacement sensor is simulated to be actually installed and fixed on two sides of a gap, the gap is fixed to be zero, then the gap part and the high-precision displacement sensor are integrally arranged in a temperature-adjustable airtight space; and packaging and transmitting the corrected displacement data, temperature data and vibration data to an upper computer.
When the longitudinal distance between the two detected parts is reduced, the longitudinal sliding base body is subjected to the longitudinal thrust action of the limiting block, the longitudinal sliding base body slides towards the inside of the shell along the longitudinal sliding rod, and the longitudinal sliding displacement value of the longitudinal sliding base body is the reduction value of the relative displacement between the two detected parts; when the distance between the two detected parts is increased, the longitudinal sliding base body is acted by the longitudinal tension of the limiting block, the longitudinal sliding base body slides to the outside of the shell along the longitudinal sliding rod, and the longitudinal sliding displacement value of the longitudinal sliding base body is the increased value of the relative displacement between the two detected parts. The high-precision magnet is arranged on the longitudinal sliding base body, when the longitudinal sliding base body slides along the longitudinal sliding rod, the magnetic field around the high-precision electromagnetic induction chip on the longitudinal PCB component changes, the single chip microcomputer processes the captured magnetic field change signal into a displacement signal through data and sends the displacement signal to the upper computer, so that the measurement of longitudinal relative displacement is realized, the precision can reach 0.5 mu m, and the high-precision relative displacement of a product can be continuously monitored with micron-level precision.
When the lateral relative displacement occurs between the limiting block and the shell, the lateral sliding base body is subjected to the lateral thrust action of the limiting block, the lateral sliding base body slides along the lateral sliding rod, and the sliding displacement value of the lateral sliding base body along the lateral direction is equal to the lateral relative displacement of the limiting block relative to the shell. The high-precision magnet is arranged on the transverse sliding base body, when the transverse sliding base body slides along the transverse sliding rod, the magnetic field around the high-precision electromagnetic induction chip on the transverse PCB component changes, the single chip microcomputer processes the captured magnetic field change signal into a displacement signal through data and sends the displacement signal to the upper computer, so that the measurement of transverse relative displacement is realized, the precision can reach 0.5 mu m, and the high-precision relative displacement of a product can be continuously monitored with the micron-level precision.
Example 2
The displacement sensor for monitoring the transverse direction and the longitudinal direction simultaneously provided by the embodiment is basically consistent with the structure of the embodiment 1, and the difference is that in the embodiment, only one connecting rod is arranged, as shown in fig. 9-10, a mounting hole is formed in the limiting block along the mounting direction of the sensor, the mounting hole penetrates through the limiting block, the connecting rod is connected in the mounting hole and is in close contact with the mounting hole, and when the two parts to be tested are subjected to left or right transverse relative displacement, the limiting block drives the connecting rod to move left or right transversely, so that the transverse sliding base body is driven to move. The surface of the mounting hole is smooth, so that when the two parts to be tested are subjected to longitudinal relative displacement, the limiting block and the connecting rod are subjected to longitudinal relative movement, and the transverse sliding base body is not influenced.
Claims (7)
1. The utility model provides a monitor horizontal and fore-and-aft displacement sensor simultaneously, includes casing, stopper and is located the sensing module of casing at least, and wherein casing and stopper are fixed in respectively on two parts of being surveyed, and sensing module's one end stretches out in by the casing and is fixed in on the stopper, its characterized in that: the limiting block and the shell are directly or fixedly arranged on two tested components through mounting cushion blocks, the sensing module comprises a longitudinal sensing unit, an isolation supporting plate and a transverse sensing unit, wherein the longitudinal sensing unit comprises a longitudinal PCB assembly, a longitudinal sliding matrix, a longitudinal high-precision magnet and a longitudinal sliding rod, the transverse sensing unit comprises a transverse PCB assembly, a transverse sliding matrix, a transverse high-precision magnet and a transverse sliding rod, the isolation supporting plate is fixedly arranged on the shell, the longitudinal PCB assembly and the transverse PCB assembly are respectively positioned above and below the isolation supporting plate and fixedly connected with the isolation supporting plate, and isolation gaskets are respectively fixedly arranged among the longitudinal PCB assembly, the transverse PCB assembly and the isolation supporting plate;
the longitudinal sliding base body and the transverse sliding base body are respectively positioned on one side, far away from the isolation supporting plate, of the longitudinal PCB assembly and the transverse PCB assembly, a longitudinal slideway hole is formed in the longitudinal sliding base body along the length direction of the sensor, a longitudinal sliding rod is arranged in the longitudinal slideway hole and is fixed on the shell, the longitudinal sliding base body slides along the longitudinal sliding rod, a longitudinal high-precision magnet is fixed on one side, close to the longitudinal PCB assembly, of the longitudinal sliding base body and synchronously moves along with the longitudinal sliding base body, the front end of the longitudinal sliding base body is fixedly connected with a connector, and the front end of the connector is fixed on the limiting block; the transverse sliding base body is provided with a transverse slideway hole along the width direction of the sensor, the transverse sliding rod is arranged in the transverse slideway hole and fixed on the shell, the transverse sliding base body slides along the transverse sliding rod, the transverse high-precision magnet is fixed on one surface of the transverse sliding base body, which is close to the transverse PCB assembly, and synchronously moves along with the transverse sliding base body, the front end of the transverse sliding base body is fixedly connected with the connecting rod, and the contact surface of the limiting block, the connecting head and the connecting rod is a smooth surface;
when the connecting rod is provided with one connecting rod, the limiting block is provided with a mounting hole along the mounting direction of the sensor, the mounting hole penetrates through the limiting block, the connecting rod is connected in the mounting hole and is in close contact with the mounting hole, and the surface of the mounting hole is smooth; when two connecting rods are arranged, the connecting rods are positioned at two sides of the limiting block and are in close contact with the limiting block; the connecting rod moves back and forth along the direction perpendicular to the installation direction of the sensor under the drive of the limiting block, and when the two parts to be tested are subjected to transverse relative displacement, the limiting block and the connector are subjected to transverse relative movement, so that the longitudinal sliding base body is not influenced; when the two parts to be tested are longitudinally displaced relatively, the limiting block and the connecting rod are longitudinally displaced relatively, so that the transverse sliding matrix is not affected;
limiting springs are sleeved at two ends of the longitudinal slide bar and the transverse slide bar, and the limiting springs limit the longitudinal slide base body or the transverse slide base body to be positioned at the middle position of the longitudinal slide bar or the transverse slide bar in a free state.
2. The simultaneous lateral and longitudinal displacement sensor of claim 1, wherein: the connecting rod is provided with fixed connection's protruding piece and adjusting screw on being close to the side of stopper, through adjusting screw adjusting protruding piece's the height that stretches out for protruding piece and stopper surface in close contact with, protruding piece's surface is smooth.
3. The simultaneous lateral and longitudinal displacement sensor of claim 1, wherein: the longitudinal PCB component, the transverse PCB component, the isolation supporting plate and the isolation gasket are fixedly connected or bonded through bolts.
4. The simultaneous lateral and longitudinal displacement sensor of claim 1, wherein: the two sides of the isolation supporting plate are fixedly connected with the lug plates, the isolation supporting plate is fixedly connected with the shell through the lug plates, and the isolation supporting plate is made of high-magnetic-resistance materials.
5. The simultaneous lateral and longitudinal displacement sensor of claim 1, wherein: the limiting block or the shell is connected with the installation cushion block through adhesion or magnet adsorption.
6. The simultaneous lateral and longitudinal displacement sensor of claim 1, wherein: the front end of the connector is connected with a magnet, the connector and the limiting block are fixedly connected through the magnet, and the magnet is a ferromagnetic permanent magnet.
7. The simultaneous lateral and longitudinal displacement sensor of claim 1, wherein: the longitudinal PCB assembly and the transverse PCB assembly comprise a high-precision electromagnetic induction chip for capturing magnetic field change signals generated by movement of a longitudinal high-precision magnet and a transverse high-precision magnet, a singlechip for processing the captured magnetic field change signals into displacement signals and sending the displacement signals to an upper computer, a temperature sensing chip for collecting environmental temperature data, a vibration sensing chip for collecting environmental vibration signals and an electromagnetic interference prevention circuit, wherein the temperature sensing chip and the vibration sensing chip are connected with the singlechip.
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Effective date of registration: 20231114 Address after: Room A305, Science and Technology Resource Coordination Building, No. 10 Zhangbawu Road, High tech Zone, Xi'an City, Shaanxi Province, 710065 Patentee after: Xi'an Zhongke SAQ test & Control Technology Co.,Ltd. Address before: 712000 106A, zone a, China Korea Industrial Park, Gaoke 3rd road, Qindu District, Xianyang City, Shaanxi Province Patentee before: SHAANXI ZHONGKEQIHANG TECHNOLOGY CO.,LTD. |