CN109916554B - Handheld pressure sensing performance detection equipment - Google Patents
Handheld pressure sensing performance detection equipment Download PDFInfo
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- CN109916554B CN109916554B CN201910131435.2A CN201910131435A CN109916554B CN 109916554 B CN109916554 B CN 109916554B CN 201910131435 A CN201910131435 A CN 201910131435A CN 109916554 B CN109916554 B CN 109916554B
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Abstract
The invention discloses a handheld pressure sensing performance detection device which comprises a liftable detection unit, a control unit and a display unit, wherein the liftable detection unit is respectively connected with the control unit and the display unit, the control unit is connected with the display unit, the control unit controls the lifting motion of the liftable detection unit and controls the pressure between the liftable detection unit and conductive cloth, and the display unit outputs a resistance and pressure signal curve of the conductive cloth according to the resistance value of the conductive cloth measured by the liftable detection unit and the pressure value obtained by the control unit; the invention is portable as a whole, and the hand can easily pick up and move the equipment; according to the invention, the display unit is directly integrated on the detection equipment, so that the operation and the observation of the performance of the conductive cloth are convenient, and the detection of the resistance value and the pressure value of the conductive cloth can be automatically completed and the performance curve of the conductive cloth can be generated only by manually placing the conductive cloth to be detected on the material table and pressing the control button.
Description
Technical Field
The invention relates to electronic detection equipment, in particular to handheld pressure sensing performance detection equipment.
Background
The conductive cloth takes fiber cloth as a base material, has good conductivity and long-term and lasting static elimination capability, can be used for professional shielding work clothes, shielding cloth special for shielding rooms, shielding cloth special for IT industries, currently popular touch screen gloves, radiation-proof curtains and the like which are engaged in high-radiation work such as electronics, electromagnetism and the like, and has very large use amount in industrial production and people life.
At present, in the production process of the conductive cloth, the resistance value of the conductive cloth is tested by a manual handheld multimeter, then the pressure value is tested by a pressure gauge, data is manually input, the resistance value and the pressure value are read by software to generate a curve, and therefore the performance of the conductive cloth is analyzed, and the detection mode is very low in efficiency.
The invention patent with the application number of 201810635488.3 discloses a system and a method for measuring dynamic resistance of a conductive fabric, as shown in fig. 1, the system comprises a corresponding resistor, a pair of test heads, a data acquisition and processing system and a PC end, the conductive fabric is connected in series with the corresponding resistor, the conductive fabric and the corresponding resistor form a closed circuit, one end of each of the pair of test heads is respectively connected with two ends of the conductive fabric, the other end of each of the pair of test heads is connected with an input end of the data acquisition and processing system, an output end of the data acquisition and processing system is connected with the PC end, and the PC end calculates and displays a real-time resistance value of the conductive fabric by using the property of the series circuit. The invention can realize the measurement of the dynamic resistance which changes along with the time change and is generated in the process of the stress deformation of the conductive fabric, but because the detection equipment in the system, the microprocessor and the PC end belong to three parts respectively, the detection equipment cannot be moved in a portable way, for example, when a buyer purchases the conductive fabric, the detection equipment needs to collect a plurality of cloth samples and then takes the cloth samples to a special detection department for detection, and the real-time detection cannot be carried out on a purchasing site.
Therefore, there is a need for a handheld pressure sensing performance detection device, which can detect the resistance value of the conductive fabric, detect the corresponding pressure value, and output a resistance-pressure signal curve, and integrate the control unit and the display unit on the detection unit, so that the device is portable and portable, and can be easily picked up by a human hand and moved.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, it is an object of the present invention to provide a hand-held pressure sensing performance testing device.
The invention is realized by the following technical scheme.
The utility model provides a hand-held type pressure sensing performance check out test set, includes liftable detecting element, the control unit and display element, liftable detecting element respectively in the control unit with the display element is connected, the control unit control liftable detecting element's elevating movement and control liftable detecting element and electrically conductive cloth between the pressure, the display element basis liftable detecting element is measured electrically conductive cloth's resistance value and the pressure value output that the control unit acquireed electrically conductive cloth's resistance and pressure signal curve.
The liftable detection unit comprises a driving motor, a shell, a pressing plate, a base body provided with a positive electrode and a negative electrode, a material table and a base, wherein the driving motor drives the pressing plate to move up and down along the shell through a transmission mechanism so as to drive the base body to lift, the material table is arranged on the base and positioned right below the base body, and the conductive cloth to be detected is placed on the material table; one end of the positive electrode is communicated with one end of the negative electrode through a wire, and when the positive electrode and the negative electrode are contacted with the conductive cloth, the two electrodes and the conductive cloth form a loop.
Furthermore, the transmission mechanism comprises a deep groove ball bearing, a coupler, an upper mounting plate, a sliding plate, a guide rod, a screw rod, a lower mounting plate, an angular contact ball bearing, a connecting plate, a nut, a sliding block and an anti-collision block, the transmission mechanism is arranged in the shell, and the upper mounting plate is mounted on the upper part of the inner wall of the shell through a bolt; the outer ring of the deep groove ball bearing is arranged on the upper mounting plate in an interference fit manner; the lower mounting plate is mounted at the bottom of the inner wall of the shell through a bolt; the outer ring of the angular contact ball bearing is arranged on the lower mounting plate in an interference fit manner; the screw rod is vertically arranged in the shell, one end of the screw rod is arranged on the deep groove ball bearing, and the other end of the screw rod is arranged on the angular contact ball bearing; the nut is installed on the screw rod in a threaded fit mode.
The two guide rods are respectively arranged on two sides of the screw rod, one end of each guide rod is installed on the upper installation plate through a bolt, and the other end of each guide rod is installed on the lower installation plate through a bolt; the two sliding blocks are respectively arranged on the two guide rods; the middle position of the sliding plate is connected with a nut through a bolt, and the two ends of the sliding plate are connected with a sliding block through a bolt; the two connecting plates are symmetrically arranged on two sides of the sliding plate and are arranged on the sliding plate through bolts; the other end of the connecting plate is connected with the pressing plate through a bolt.
Furthermore, the four anti-collision blocks are respectively sleeved on the two guide rods, the two anti-collision blocks are arranged on the upper mounting plate through bolts, and the other two anti-collision blocks are arranged on the lower mounting plate through bolts; the driving motor drives the screw rod to rotate through the coupler; when the screw rod rotates, the nut drives the pressing plate to do linear motion through the sliding plate; the slide block slides on the guide rail and plays a supporting role for the slide plate.
Furthermore, the lifting detection unit further comprises a top cover plate, a mounting plate, a handle and a rear cover plate, the shell is of a U-shaped structure, and the rear cover plate is mounted on the shell through bolts to form a cavity with a closed side surface; the top cover plate is installed at the top end of the shell through a bolt, the driving motor is installed on the top cover plate through a bolt, and the handle is installed on the rear cover plate through a bolt.
The two mounting plates are symmetrically arranged on two sides of the shell, one end of each mounting plate is connected with the shell through a bolt, and the other end of each mounting plate is connected with the base through a bolt; the material platform is installed in the middle of the base through bolts.
Furthermore, the control unit comprises a pressure sensor support arranged on the side edge of the base body through a bolt, a pressure sensor arranged on the pressure sensor support through threads, a control system box body and a lithium battery; the control system is arranged in the control system box, and the lithium battery is mounted on the upper portion of the shell through bolts and supplies power to the driving motor and the control system.
Furthermore, the control system comprises a CPU, a digital-to-analog converter, a voltage conversion module, a sampling resistor and an analog-to-digital converter; the display unit is installed on the control system box body through bolts; the sampling resistor is connected in series in a loop of the positive electrode, the negative electrode and the conductive cloth to form a sampling loop; the CPU sends an instruction to the digital-to-analog converter, and the voltage conversion module adds voltage to the sampling loop; the analog-to-digital converter collects the voltages of the conductive cloth and the sampling resistor in a sampling loop and transmits signals to a CPU, and the CPU calculates the resistance value of the conductive cloth; and the CPU transmits the resistance value and the pressure value obtained by the pressure sensor to the display unit, and displays a curve formed by the resistance value and the pressure value on the display unit.
Furthermore, the resistance value of the sampling resistor Is Rs, the resistance value of the conductive cloth to be detected Is Rx, the voltage between the sampling resistor and the ground Is V1, the voltage between the conductive cloth and the ground Is V2, and the current of the sampling loop Is; the analog-to-digital converter collects the values of V1 and V2; the value of the sampling loop current Is obtained by V1/Rs = Is; and obtaining the resistance value of the conductive cloth to be tested by Rx = (V2-V1)/Is.
Furthermore, the lead screw adopts trapezoidal threads with good self-locking performance to prevent the nut from sliding downwards; the nut is made of brass with high wear resistance, so that the screw rod is effectively protected in the movement process; in order to reduce the weight of the equipment, the sliding block is made of engineering plastics; in order to reduce the total weight of the equipment, the top cover plate, the shell, the pressing plate 4, the base body, the positive electrode, the negative electrode, the mounting plate and the base are all made of plastic materials; in order to prevent conduction, the material table is also made of plastic.
Furthermore, when a fault occurs, the driving motor is not stopped at the set position, and the slide block can collide with the anti-collision block made of polyurethane instead of being directly arranged on the upper mounting plate and the lower mounting plate made of stainless steel.
When the pressure sensor is in contact with the conductive cloth and generates a certain pressure value, the driving motor stops rotating; the positive electrode and the negative electrode on the substrate are in contact with the conductive cloth, and the positive electrode and the negative electrode form a loop with the conductive cloth; the sampling resistor, the positive electrode, the negative electrode and the conductive cloth form a sampling loop; the CPU sends an instruction to the digital-to-analog converter, the voltage conversion module applies voltage to the sampling loop, the analog-to-digital converter collects the voltage of the conductive cloth and the sampling resistor in the sampling loop and transmits a signal to the CPU, and the CPU calculates to obtain the resistance value of the conductive cloth; while collecting the resistance data, the pressure sensor transmits the pressure value of the conductive cloth to the CPU; after the acquisition of a group of data is completed, the CPU sends an instruction to drive the motor to start to rotate reversely, and the substrate is lifted; then the motor is driven to rotate forwards again, the substrate moves downwards and contacts with the conductive cloth, the value of the pressure sensor is a little larger than the first pressure value, and the resistance value of the conductive cloth is measured again; obtaining a group of data after cyclic measurement for several times; the CPU transmits the resistance value and the pressure value obtained by the pressure sensor to the display unit; the display unit displays a curve formed by the resistance value and the pressure value.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides a handheld pressure sensing performance detection device, which is characterized in that only a conductive cloth to be detected needs to be manually placed on a material table, the resistance value and the pressure value of the conductive cloth are automatically detected, and a performance curve of the conductive cloth is generated;
2. according to the invention, the sampling electrode is arranged on the detection device, the pressure sensor is arranged on the detection device, and the pressure value of the conductive cloth can be detected while the resistance value of the conductive cloth is detected during sampling every time, so that the detection efficiency is improved;
3. the display unit is integrated on the equipment, the control is designed on the display unit to control the starting and stopping of the motor, and the resistance value and pressure value curves can be displayed on the display unit, so that the operation and observation of the performance of the conductive cloth are facilitated;
4. the invention adopts the transmission mode of the screw rod nut to control the detection device to move up and down and apply pressure to the conductive cloth, and can accurately control the stroke and the magnitude of the applied pressure of the detection device;
5. the invention adopts light materials as the main body materials of the equipment, so that the whole equipment is light, and the handle is arranged at the rear part of the equipment, thereby being convenient for people to take up the equipment.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a front view of the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a cross-sectional view A-A of the present invention;
FIG. 5 is a cross-sectional view B-B of the present invention;
FIG. 6 is a cross-sectional view C-C of the present invention;
FIG. 7 is a flow chart of the detection of the present invention;
fig. 8 is a schematic diagram of the circuit of the present invention.
In the figure: 1. a drive motor; 2. a top cover plate; 3. a housing; 4. pressing a plate; 5. a substrate; 6. a positive electrode; 17. a negative electrode level; 7. mounting a plate; 8. a base; 9. a material table; 10. a conductive cloth; 11. a pressure sensor support; 12. a pressure sensor; 13. a control system box; 14. a handle; 15. a rear cover plate; 16. a lithium battery; 18. a deep groove ball bearing; 19. a coupling; 20. an upper mounting plate; 21. a slide plate; 22. a guide bar; 23. a screw rod; 24. a lower mounting plate; 25. angular contact ball bearings; 26. a connecting plate; 27. a nut; 28. a display unit, 29, a control system; 30. a slider; 31. and (4) an anti-collision block.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
As shown in fig. 2-6, a hand-held type pressure sensing performance check out test set, including liftable detecting element, the control unit and display element, liftable detecting element respectively in the control unit with the display element is connected, the control unit control liftable detecting element's elevating movement and control liftable detecting element and electrically conductive cloth between the pressure, the display element basis liftable detecting element is measured electrically conductive cloth's resistance value and the pressure value output that the control unit acquireed electrically conductive cloth's resistance and pressure signal curve.
The liftable detection unit comprises a driving motor 1, a shell 3, a pressing plate 4, a base body 5 provided with a positive electrode 6 and a negative electrode 17, a material table 9 and a base 8, wherein the driving motor 1 drives the pressing plate 4 to move up and down along the shell 3 through a transmission mechanism so as to drive the base body 5 to lift, the material table 9 is arranged on the base 8 and is positioned under the base body 5, and the conductive cloth 10 to be detected is placed on the material table 9; one end of the positive electrode 6 is communicated with one end of the negative electrode 17 through a wire, and when the positive electrode 6 and the negative electrode 17 contact the conductive cloth 10, the two electrodes and the conductive cloth 10 form a loop.
The transmission mechanism comprises a deep groove ball bearing 18, a coupler 19, an upper mounting plate 20, a sliding plate 21, a guide rod 22, a screw rod 23, a lower mounting plate 24, an angular contact ball bearing 25, a connecting plate 26, a nut 27, a sliding block 30 and an anti-collision block 31, the transmission mechanism is arranged in the shell 3, and the upper mounting plate 20 is mounted on the upper part of the inner wall of the shell 3 through bolts; the outer ring of the deep groove ball bearing 18 is arranged on the upper mounting plate 20 in an interference fit manner; the lower mounting plate 24 is mounted at the bottom of the inner wall of the shell 3 through bolts; the outer ring of the angular contact ball bearing 25 is arranged on the lower mounting plate 24 in an interference fit manner; the screw rod 23 is erected in the shell 3, one end of the screw rod is arranged on the deep groove ball bearing 18, and the other end of the screw rod is arranged on the angular contact ball bearing 25; the nut 27 is mounted on the screw 23 by a screw-fit.
The two guide rods 22 are respectively arranged on two sides of the screw rod 23, one end of each guide rod is installed on the upper installation plate 20 through a bolt, and the other end of each guide rod is installed on the lower installation plate 24 through a bolt; the two sliding blocks 30 are respectively arranged on the two guide rods 22; the middle position of the sliding plate 21 is connected with a nut 27 through a bolt, and two ends of the sliding plate are connected with a sliding block 30 through bolts; the two connecting plates 26 are symmetrically arranged on two sides of the sliding plate 21 and are arranged on the sliding plate 21 through bolts; the other end of the connecting plate 26 is connected with the pressure plate 4 through a bolt.
The four anti-collision blocks 31 are respectively sleeved on the two guide rods 22, the two anti-collision blocks 31 are installed on the upper installation plate 20 through bolts, and the other two anti-collision blocks 31 are installed on the lower installation plate 24 through bolts; the driving motor 1 drives the screw rod 23 to rotate through the coupler 19; when the screw rod 23 rotates, the nut 27 drives the pressing plate 4 to do linear motion through the sliding plate 21; the slider 30 slides on the guide rail 22 and supports the slide plate 21.
The lifting detection unit further comprises a top cover plate 2, a mounting plate 7, a handle 14 and a rear cover plate 15, the shell 3 is of a U-shaped structure, and the rear cover plate 15 is mounted on the shell 3 through bolts to form a cavity with a closed side face; the top cover plate 2 is installed at the top end of the shell 3 through bolts, the driving motor 1 is installed on the top cover plate 2 through bolts, and the handle 14 is installed on the rear cover plate 15 through bolts.
The two mounting plates 7 are symmetrically arranged on two sides of the shell 3, one end of each mounting plate is connected with the shell 3 through a bolt, and the other end of each mounting plate is connected with the base 8 through a bolt; the material table 9 is mounted at the middle position of the base 8 through bolts.
The control unit comprises a pressure sensor support 11 arranged on the side of the base body 5 through bolts, a pressure sensor 12 arranged on the pressure sensor support 11 through threads, a control system 29, a control system box body 13 and a lithium battery 16; the control system 29 is arranged inside the control system box 13, and the lithium battery 16 is mounted on the upper part of the shell 3 through bolts and supplies power to the driving motor 1 and the control system 29.
The driving motor 1 drives the screw rod 23 to rotate through the coupling 19; when the screw rod 23 rotates, the nut 27 drives the pressing plate 4 to do linear motion through the sliding plate 21; the slide block 30 slides on the guide rail 22 and supports the slide plate 21; when the driving motor 1 rotates forwards, the pressing plate 4 moves downwards, and when the driving motor 1 rotates backwards, the pressing plate 4 moves upwards; the pressing plate 4 moves downwards, and when the bottom of the base body 5 contacts the conductive cloth 10 and applies a certain pressure to the conductive cloth 10, the driving motor 1 stops rotating; the positive electrode 6 and the negative electrode 17 arranged at the bottom of the substrate 5 are contacted with the conductive cloth 10, and the two electrodes and the conductive cloth 10 form a loop.
As shown in fig. 7, the control system 29 includes a CPU, a digital-to-analog converter, a voltage conversion module, a sampling resistor, an analog-to-digital converter, and a display unit; the display unit 28 is mounted on the control system box 13 by bolts; the sampling resistor is connected in series in a loop of the positive electrode 6, the negative electrode 17 and the conductive cloth 10 to form a sampling loop; the CPU sends an instruction to the digital-to-analog converter, and the voltage conversion module adds voltage to the sampling loop; the analog-to-digital converter collects the voltages of the conductive cloth 10 and the sampling resistor in the sampling loop, transmits signals to the CPU, and the CPU calculates to obtain the resistance value of the conductive cloth 10; the CPU transmits the resistance value and the pressure value obtained by the pressure sensor to the display unit 28; the display unit 28 displays a curve formed by the resistance value and the pressure value.
As shown in fig. 8, the resistance value of the sampling resistor Is Rs, the resistance value of the conductive cloth to be tested Is Rx, the voltage between the sampling resistor and the ground Is V1, the voltage between the conductive cloth and the ground Is V2, and the current of the sampling loop Is; the analog-to-digital converter collects the values of V1 and V2; the value of the sampling loop current Is obtained by V1/Rs = Is; and obtaining the resistance value of the conductive cloth 10 to be tested by Rx = (V2-V1)/Is.
More specifically, the screw rod 23 adopts trapezoidal threads with good self-locking performance to prevent the nut 27 from sliding downwards; the nut 27 is made of brass with strong wear resistance, so that the screw rod 23 is effectively protected in the movement process; in order to reduce the weight of the equipment, the sliding block 30 is made of engineering plastics; in order to reduce the total weight of the equipment, the top cover plate 2, the shell 3, the pressing plate 4, the matrix 5, the positive electrode 6, the negative electrode 17, the mounting plate 7 and the base 8 are all made of plastic materials; in order to prevent conduction, the material table 9 is also made of plastic.
More specifically, when a failure occurs, the driving motor 1 is not stopped at the set position, and the slider 30 may collide against the bumper block 31 made of urethane, instead of being directly mounted on the upper mounting plate 20 and the lower mounting plate 24 made of stainless steel.
When the device is used specifically, an operator places the conductive cloth 10 on the material table 9, clicks a control on the display unit 28, drives the motor 1 to rotate forwards and drives the pressure plate 4 to drive the base body 5 to move downwards, and when the pressure sensor 12 contacts the conductive cloth 10 and generates a certain pressure value, the driving motor 1 stops rotating; the positive electrode 6 and the negative electrode 17 on the substrate 5 are in contact with the conductive cloth 10, and the positive electrode 6 and the negative electrode 17 form a loop with the conductive cloth 10; the sampling resistor, the positive electrode 6, the negative electrode 17 and the conductive cloth 10 form a sampling loop; the CPU sends an instruction to the digital-to-analog converter, the voltage conversion module applies voltage to the sampling loop, the analog-to-digital converter collects the voltage of the conductive cloth 10 and the sampling resistor in the sampling loop and transmits a signal to the CPU, and the CPU calculates to obtain the resistance value of the conductive cloth 10; while collecting the resistance data, the pressure sensor transmits the pressure value of the conductive cloth 10 to the CPU; after the acquisition of a group of data is completed, the CPU sends an instruction to drive the motor 1 to rotate reversely, and the substrate 5 is lifted; then the motor 1 is driven to rotate forwards again, the substrate 5 moves downwards and contacts the conductive cloth 10, the value of the pressure sensor is a little larger than the first pressure value, and the resistance value of the conductive cloth 10 is measured again; obtaining a group of data after cyclic measurement for several times; the CPU transmits the resistance value and the pressure value obtained by the pressure sensor to the display unit 28; the display unit 28 displays a curve formed by the resistance value and the pressure value.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention.
Claims (8)
1. A handheld pressure sensing performance detection device is characterized by comprising a liftable detection unit, a control unit and a display unit, wherein the liftable detection unit is respectively connected with the control unit and the display unit, the control unit is connected with the display unit, the control unit controls the lifting motion of the liftable detection unit and controls the pressure between the liftable detection unit and a conductive cloth, and the display unit outputs a resistance and pressure signal curve of the conductive cloth according to the resistance value of the conductive cloth measured by the liftable detection unit and the pressure value obtained by the control unit;
the lifting detection unit comprises a driving motor (1), a shell (3), a pressing plate (4), a base body (5) provided with a positive electrode (6) and a negative electrode (17), a material table (9) and a base (8), wherein the driving motor (1) drives the pressing plate (4) to move up and down along the shell (3) through a transmission mechanism so as to drive the base body (5) to lift, the material table (9) is arranged on the base (8) and is positioned under the base body (5), and the conductive cloth (10) to be detected is placed on the material table (9); one end of the positive electrode (6) is communicated with one end of the negative electrode (17) through a wire, and when the positive electrode (6) and the negative electrode (17) are contacted with the conductive cloth (10), the two electrodes and the conductive cloth (10) form a loop;
the control unit comprises a pressure sensor support (11) arranged on the side of the base body (5) through a bolt, a pressure sensor (12) arranged on the pressure sensor support (11) through a thread, a control system (29), a control system box body (13) and a lithium battery (16); the control system (29) is arranged in the control system box body (13), and the lithium battery (16) is installed on the upper portion of the shell (3) through bolts and supplies power to the driving motor (1) and the control system (29).
2. The handheld pressure sensing performance detection device is characterized in that the transmission mechanism comprises a deep groove ball bearing (18), a coupler (19), an upper mounting plate (20), a sliding plate (21), a guide rod (22), a screw rod (23), a lower mounting plate (24), an angular contact ball bearing (25), a connecting plate (26), a nut (27), a sliding block (30) and an anti-collision block (31), the transmission mechanism is arranged inside the shell (3), and the upper mounting plate (20) is mounted on the upper portion of the inner wall of the shell (3) through bolts; the outer ring of the deep groove ball bearing (18) is arranged on the upper mounting plate (20) in an interference fit manner; the lower mounting plate (24) is mounted at the bottom of the inner wall of the shell (3) through bolts; the outer ring of the angular contact ball bearing (25) is arranged on the lower mounting plate (24) in an interference fit manner; the screw rod (23) is erected in the shell (3), one end of the screw rod is arranged on the deep groove ball bearing (18), and the other end of the screw rod is arranged on the angular contact ball bearing (25); the nut (27) is mounted on the screw rod (23) through thread fit.
3. The hand-held pressure sensing performance detection device according to claim 2, wherein two guide rods (22) are respectively arranged on two sides of the screw rod (23), one end of each guide rod is mounted on the upper mounting plate (20) through a bolt, and the other end of each guide rod is mounted on the lower mounting plate (24) through a bolt; the two sliding blocks (30) are respectively arranged on the two guide rods (22); the middle position of the sliding plate (21) is connected with a nut (27) through a bolt, and two ends of the sliding plate are connected with a sliding block (30) through bolts; the two connecting plates (26) are symmetrically arranged on two sides of the sliding plate (21) and are arranged on the sliding plate (21) through bolts; the other end of the connecting plate (26) is connected with the pressure plate (4) through a bolt.
4. The handheld pressure sensing performance detection device according to claim 2, wherein four anti-collision blocks (31) are respectively sleeved on the two guide rods (22), two anti-collision blocks (31) are mounted on the upper mounting plate (20) through bolts, and the other two anti-collision blocks (31) are mounted on the lower mounting plate (24) through bolts; the driving motor (1) drives the screw rod (23) to rotate through the coupler (19); when the screw rod (23) rotates, the nut (27) drives the pressing plate (4) to do linear motion through the sliding plate (21); the sliding block (30) slides on the guide rail (22) and supports the sliding plate (21).
5. The handheld pressure sensing performance detection device according to any one of claims 1 to 4, wherein the liftable detection unit further comprises a top cover plate (2), a mounting plate (7), a handle (14) and a rear cover plate (15), the housing (3) is of a U-shaped structure, and the rear cover plate (15) is mounted on the housing (3) through bolts to form a cavity with a closed side; the top cover plate (2) is installed at the top end of the shell (3) through a bolt, the driving motor (1) is installed on the top cover plate (2) through a bolt, and the handle (14) is installed on the rear cover plate (15) through a bolt.
6. The handheld pressure sensing performance detection device according to claim 5, wherein two mounting plates (7) are symmetrically arranged on two sides of the housing (3), one end of each mounting plate is connected with the housing (3) through a bolt, and the other end of each mounting plate is connected with the base (8) through a bolt; the material platform (9) is installed in the middle of the base (8) through bolts.
7. The hand-held pressure sensing performance testing device of claim 1, wherein the control system (29) comprises a CPU, a digital-to-analog converter, a voltage conversion module, a sampling resistor, and an analog-to-digital converter; the display unit (28) is mounted on the control system box body (13) through bolts; the sampling resistor is connected in series in a loop of the positive electrode (6), the negative electrode (17) and the conductive cloth (10) to form a sampling loop; the CPU sends an instruction to the digital-to-analog converter, and the voltage conversion module adds voltage to the sampling loop; the analog-digital converter collects the voltages of the conductive cloth (10) and the sampling resistor in a sampling loop and transmits signals to a CPU (central processing unit), and the CPU calculates to obtain the resistance value of the conductive cloth (10); the CPU transmits the resistance value and the pressure value obtained by the pressure sensor (12) to the display unit (28), and displays a curve formed by the resistance value and the pressure value on the display unit (28).
8. The handheld pressure sensing performance detection device according to claim 7, wherein the resistance value of the sampling resistor Is Rs, the resistance value of the conductive cloth (10) to be detected Is Rx, the voltage between the sampling resistor and the ground Is V1, the voltage between the conductive cloth (10) and the ground Is V2, and the current of the sampling loop Is; the analog-to-digital converter collects the values of V1 and V2; obtaining the value of the sampling loop current from V1/Rs ═ Is; and obtaining the resistance value of the conductive cloth (10) to be measured by Rx (V2-V1)/Is.
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| CN111855077B (en) * | 2020-07-17 | 2021-05-25 | 上海交通大学 | Hand-held type thin film force-sensitive resistance sensor calibration device and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4545445A (en) * | 1983-07-07 | 1985-10-08 | Kabushiki Kaisha Ishida Koki Seisakusho | Span adjusting system of electronic weighing apparatus |
| CN203396637U (en) * | 2013-08-30 | 2014-01-15 | 浙江华元纺织品有限公司 | Rack for fabric brute force meter |
| CN103528754A (en) * | 2013-10-28 | 2014-01-22 | 天津工业大学 | Measurement device for thin film pressure sensor |
| DE202015006725U1 (en) * | 2015-09-28 | 2016-12-29 | Hans Peter Schlegelmilch | Device for checking a Martindale sample holder with inserted sample and arrangement comprising the device and the sample holder |
| WO2018053310A1 (en) * | 2016-09-16 | 2018-03-22 | Robert Moran | Speed tracker |
| CN208140321U (en) * | 2018-04-25 | 2018-11-23 | 广东合众路桥科技股份有限公司 | A kind of deflection of bridge span detection device |
| CN208254707U (en) * | 2018-05-30 | 2018-12-18 | 浙江汉博汽车传感器有限公司 | A kind of pressure sensor detecting device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0975940B1 (en) * | 1997-04-21 | 2004-06-02 | Michael Van Bergen | Linear force transducer with two films and two punches |
| KR20100046629A (en) * | 2008-10-27 | 2010-05-07 | 주식회사 유라코퍼레이션 | Simulation method for compression simulator and wire harness terminal compression simulator |
| CN102620878B (en) * | 2012-03-15 | 2014-03-12 | 西安交通大学 | Capacitive micromachining ultrasonic sensor and preparation and application methods thereof |
| CN104198929A (en) * | 2014-07-14 | 2014-12-10 | 国网上海市电力公司 | Detection device and detection method for outdoor high voltage isolator |
| JP6530687B2 (en) * | 2015-09-24 | 2019-06-12 | 日本メクトロン株式会社 | Pressure sensitive element and pressure sensor |
| CN105938160B (en) * | 2016-06-23 | 2019-02-12 | 南京协辰电子科技有限公司 | Impedance test device |
| CN205941694U (en) * | 2016-08-21 | 2017-02-08 | 浙江省东阳市诚基电机有限公司 | Vibrating motor resistance detection is with detecting first structure |
| CN106950011B (en) * | 2017-03-13 | 2019-02-01 | 台州旭日环境科技有限公司 | A kind of pressure sensor test device |
| CN107717200B (en) * | 2017-09-26 | 2019-08-09 | 西北工业大学 | Accurate miniature lifetime of resistance spot welding electrode pressure real-time monitoring device |
| CN108957138B (en) * | 2018-06-29 | 2021-04-02 | 德京集团股份有限公司 | High heat dissipation cable resistivity detector |
-
2019
- 2019-02-22 CN CN201910131435.2A patent/CN109916554B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4545445A (en) * | 1983-07-07 | 1985-10-08 | Kabushiki Kaisha Ishida Koki Seisakusho | Span adjusting system of electronic weighing apparatus |
| CN203396637U (en) * | 2013-08-30 | 2014-01-15 | 浙江华元纺织品有限公司 | Rack for fabric brute force meter |
| CN103528754A (en) * | 2013-10-28 | 2014-01-22 | 天津工业大学 | Measurement device for thin film pressure sensor |
| DE202015006725U1 (en) * | 2015-09-28 | 2016-12-29 | Hans Peter Schlegelmilch | Device for checking a Martindale sample holder with inserted sample and arrangement comprising the device and the sample holder |
| WO2018053310A1 (en) * | 2016-09-16 | 2018-03-22 | Robert Moran | Speed tracker |
| CN208140321U (en) * | 2018-04-25 | 2018-11-23 | 广东合众路桥科技股份有限公司 | A kind of deflection of bridge span detection device |
| CN208254707U (en) * | 2018-05-30 | 2018-12-18 | 浙江汉博汽车传感器有限公司 | A kind of pressure sensor detecting device |
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|---|---|
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