CN212340381U - Electronic water gauge precision calibrating device - Google Patents
Electronic water gauge precision calibrating device Download PDFInfo
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- CN212340381U CN212340381U CN202021367009.3U CN202021367009U CN212340381U CN 212340381 U CN212340381 U CN 212340381U CN 202021367009 U CN202021367009 U CN 202021367009U CN 212340381 U CN212340381 U CN 212340381U
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Abstract
The utility model relates to an electronic water gauge precision calibrating device, belonging to the technical field of electronic water gauge precision calibrating devices; the technical problem to be solved is as follows: the improvement of the hardware structure of the electronic water gauge precision calibration device is provided; the technical scheme adopted for solving the technical problems is as follows: the water gauge comprises a motion controller and an electronic water gauge, wherein a guide rail is placed on one side of the motion controller, a motor is arranged at one end of the guide rail, a workbench is arranged on the guide rail, a sliding seat is fixed on the workbench, a limit switch is arranged on the front side of the guide rail, two fixing plates are arranged on the rear side of the guide rail, a circular fixing ring is arranged on one fixing plate, and a U-shaped hanging ring is arranged on the other fixing plate; the sliding seat is provided with a clamping seat for placing the floating ball, and the left end and the right end of the clamping seat are provided with U-shaped openings; the control device is sleeved in the circular fixing ring, and the tail end of the measuring rod is fixed on the U-shaped hanging ring; the utility model discloses be applied to electron water accuracy calibration.
Description
Technical Field
An electronic water gauge precision calibration device belongs to the technical field of electronic water gauge precision calibration devices.
Background
The electronic water gauge used at present is mainly applied to monitoring the water level of rivers, lakes and streets of urban, rural and town, and the principle is based on the feedback of the measurement data of the water gauge floating ball and a corresponding sensor, so that the measurement precision can reach 2 mm; in order to ensure the application precision of the electronic water gauge, the electronic water gauge is generally subjected to precision calibration before leaving a factory, the existing precision calibration of the electronic water gauge is generally realized by putting the electronic water gauge into water, calculating the water level height by the electronic water gauge after a floating ball floats to the water surface, measuring the water level height by a measuring tape by a worker, comparing the data of the electronic water gauge and the water level height, and calculating whether the precision of the electronic water gauge reaches the standard.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome not enough that exists among the prior art, the technical problem that will solve is: the improvement of the hardware structure of the electronic water gauge precision calibration device is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: the automatic water gauge comprises a motion controller and an electronic water gauge, wherein a guide rail is placed on one side of the motion controller, a motor is arranged at one end of the guide rail, a workbench is arranged on the guide rail, a sliding seat is fixed on the workbench and is in transmission connection with the guide rail through a lead screw nut, a limit switch is arranged on the front side of the guide rail, two fixing plates are arranged on the rear side of the guide rail, a circular fixing ring is arranged on one fixing plate, and a U-shaped hanging ring is arranged on the other fixing plate;
the electronic water gauge comprises a control device, one end of the control device extends outwards to form a measuring rod, a floating ball is sleeved on a rod body of the measuring rod, and the floating ball can slide on the rod body of the measuring rod;
the sliding seat is provided with a clamping seat for placing the floating ball, and the left end and the right end of the clamping seat are provided with U-shaped openings;
the limit switch comprises a forward switch, a backward switch and a home position switch, the forward switch is arranged at one end of the guide rail, the backward switch is arranged at the other end of the guide rail, and the home position switch is arranged at the inner side close to the backward switch;
the control device is sleeved in the circular fixing ring, and the tail end of the measuring rod is fixed on the U-shaped hanging ring;
the motion controller is characterized in that a display screen and a key area are arranged on the surface of a shell of the motion controller, a circuit control board is arranged inside the motion controller, a displacement sensor is further arranged inside the motion controller, a microcontroller is integrated on the circuit control board, and an operation control module is integrated on the microcontroller;
the microcontroller is connected with the control end of the motor through a wire, the microcontroller is also connected with the limit switch, the display screen, the key area and the operation control module through wires respectively, and the signal output end of the displacement sensor is connected with the microcontroller through the AD conversion module;
the control device is internally provided with a control circuit board and a transmitter, and the control circuit board is integrated with a central controller.
The round fixing ring is provided with a fastening screw, the inner side of the U-shaped hanging ring is provided with an insulating gasket, the U-shaped hanging ring is provided with a fixing screw hole, the front-back length of the clamping seat is consistent with the diameter of the floating ball, and the floating ball is fixedly clamped in the clamping seat.
A data acquisition module is integrated on the transmitter, and a signal output port is also arranged at the top of the control device;
the central controller is respectively connected with the data acquisition module and the communication module in a bidirectional way through leads, and the communication module is connected with the monitoring server through an RS485 communication bus;
the central controller is also connected with a data storage module, and the power supply input end of the central controller is connected with the power supply module.
The button area is also provided with a control button, and the control button comprises a forward button, a backward button, a stop button and a reset button.
The model of a control chip used by the microcontroller is TMS320C 25;
the model of the control chip used by the central controller is ATMEGA168 PA;
the model number of the displacement sensor is TP 1-101-41.
The utility model discloses beneficial effect for prior art possesses does: the utility model discloses a set up the movement distance at motion controller's button district, control motor rotates and drives the slide motion to the distance that the floater operation on the drive slide was set for, thereby the distance value of this moment is calculated to electron water gauge according to floater movement distance, compares the distance value that calculates the electron water gauge with the distance that motion controller set for, thereby realizes the precision calibration to electron water gauge, has not only improved work efficiency, has also improved the calibration precision simultaneously.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a circuit structure of the motion controller of the present invention;
fig. 3 is a schematic diagram of the circuit structure of the electronic water gauge of the present invention;
fig. 4 is a circuit diagram of the central controller of the present invention;
fig. 5 is a circuit diagram of the data acquisition module of the present invention;
fig. 6 is a circuit diagram of the communication module of the present invention;
fig. 7 is a circuit diagram of the power module of the present invention.
In the figure: the device comprises a motion controller 1, an electronic water gauge 2, a guide rail 3, a motor 4, a sliding seat 5, a limit switch 6, a fixing plate 7, a circular fixing ring 8, a U-shaped hanging ring 9, a clamping seat 10, a display screen 11, a key area 12 and a displacement sensor 13, wherein the electronic water gauge is arranged on the electronic water gauge;
the device comprises a control device 21, a measuring rod 22, a floating ball 23, a central controller 24, a data acquisition module 25, a signal output port 26, a communication module 27, a monitoring server 28, a data storage module 29, a power module 30, a microcontroller 101, an operation control module 102 and an AD conversion module 103.
Detailed Description
As shown in fig. 1 to 7, the utility model relates to an electronic water gauge precision calibration device, including motion controller 1 and electronic water gauge 2, guide rail 3 has been placed to one side of motion controller 1, the one end of guide rail 3 is provided with motor 4, be provided with the workstation on guide rail 3, be fixed with slide 5 on the workstation, slide 5 is connected with guide rail 3 transmission through the screw-nut, guide rail 3 front side is provided with limit switch 6, guide rail 3 rear side is provided with two fixed plates 7, be provided with circular solid fixed ring 8 on one of them fixed plate 7, be provided with U-shaped link 9 on the other fixed plate 7;
the electronic water gauge 2 comprises a control device 21, one end of the control device 21 extends outwards to form a measuring rod 22, a floating ball 23 is sleeved on a rod body of the measuring rod 22, and the floating ball 23 can slide on the rod body of the measuring rod 22;
a clamping seat 10 for placing a floating ball 23 is arranged on the sliding seat 5, and U-shaped openings are formed in the left end and the right end of the clamping seat 10;
the limit switch 6 comprises a forward switch, a backward switch and a home position switch, wherein the forward switch is arranged at one end of the guide rail 3, the backward switch is arranged at the other end of the guide rail 3, and the home position switch is arranged at the inner side close to the backward switch;
the control device 21 is sleeved in the circular fixing ring 8, and the tail end of the measuring rod 22 is fixed on the U-shaped hanging ring 9;
a display screen 11 and a key area 12 are arranged on the surface of a shell of the motion controller 1, a circuit control board is arranged inside the motion controller 1, a displacement sensor 13 is also arranged inside the motion controller 1, a microcontroller 101 is integrated on the circuit control board, and an operation control module 102 is integrated on the microcontroller 101;
the microcontroller 101 is connected with the control end of the motor 4 through a wire, the microcontroller 101 is also connected with the limit switch 6, the display screen 11, the key area 12 and the operation control module 102 through wires, and the signal output end of the displacement sensor 13 is connected with the microcontroller 101 through the AD conversion module 103;
the control device 21 is internally provided with a control circuit board and a transmitter, and the control circuit board is integrated with a central controller 24.
The circular fixing ring 8 is provided with a fastening screw, the inner side of the U-shaped hanging ring 9 is provided with an insulating gasket, the U-shaped hanging ring 9 is provided with a fixing screw hole, the front-back length of the clamping seat 10 is consistent with the diameter of the floating ball 23, and the floating ball 23 is fixedly clamped in the clamping seat 10.
A data acquisition module 25 is integrated on the transmitter, and a signal output port 26 is also arranged at the top of the control device 21;
the central controller 24 is respectively connected with the data acquisition module 25 and the communication module 27 in a bidirectional way through leads, and the communication module 27 is connected with the monitoring server 28 through an RS485 communication bus;
the central controller 24 is further connected with a data storage module 29, and a power supply input end of the central controller 24 is connected with a power supply module 30.
The button area 12 is further provided with control buttons, and the control buttons include a forward button, a backward button, a stop button, and a reset button.
The model of the control chip used by the microcontroller 101 is TMS320C 25;
the model of the control chip used by the central controller 24 is ATMEGA168 PA;
the model number of the displacement sensor 13 is TP 1-101-41.
The utility model mainly comprises a motion controller 1, an electronic water gauge 2 and a guide rail 3, a non-contact displacement sensor 13 arranged in the motion controller 1 controls a motor 4 to realize high-precision movement distance setting, a slide block 5 is driven to move by the rotation of the motor 4, so that the floating ball 23 fixed on the sliding block 5 through the clamping seat 10 moves simultaneously, when the sliding block 5 moves to the motor 4 for a set distance, the control device 21 on the electronic water gauge 2 calculates the running distance of the floating ball 23 by the position of the floating ball 23, compares the distance value calculated by the electronic water gauge 2 with the set distance value of the motion controller 1, can calculate the measuring accuracy of electron water gauge 2 to carry out the precision calibration to the electron water gauge 2 of producing, the utility model discloses the length setting of guide rail 3 is at 2m when using, thereby the calibration accuracy can reach 0.1 mm.
When the electronic water gauge is used, the electronic water gauge 2, the motion controller 1 and the guide rail 3 are installed and electrically connected, specifically, the control device 21 of the electronic water gauge 2 is sleeved in the circular fixing ring 8 and is stably fixed through the fastening screw of the circular fixing ring 8, then the floating ball 23 is placed in the clamping seat 10, the U-shaped openings at the two ends of the clamping seat 10 are used for placing the measuring rod 22, and finally the tail end of the measuring rod 22 is fixed on the U-shaped hanging ring 9.
When the utility model is used, the motor movement distance is set by operating the keys through the key area 12, and the key area 12 specifically comprises a number key, a determination key, an automatic mode key, a manual mode key, an operation key and a rotating button; when the device is used, the power supply of the motion controller 1 is firstly switched on, the motion controller 1 is turned on by twisting the rotary button, the motor 4 moves at the moment, the reset button is pressed, the motor 4 resets, the stop button is pressed, the motion controller 1 stops, the confirming button is pressed, the display screen 11 displays a page display program, different motor 4 running distances can be selected by selecting 1-7 of the number buttons, and then the running button is pressed.
Before the distance on the motion controller 1 is set, firstly observing whether the electronic water gauge is at an original point, namely a position limit switch, and if the electronic water gauge is not at the original point, firstly operating the electronic water gauge 2 to the position limit switch and then setting the motor running distance; then clicking an operation button, starting rotation of the motor 4 at the moment, bringing the floating ball 23 on the sliding block 5 to move simultaneously, stopping the motor 4 after the operation reaches a set distance, calculating the distance value of the floating ball by a central controller 24 of the electronic water gauge 2 at the moment, sending the calculated distance value to a monitoring server 28 through a communication module 27, displaying and outputting the calculated distance value by the monitoring server 28, and recording a set value and a calculated value by a worker; and repeating the steps for multiple times, carrying out data analysis on the set value and the calculated value for multiple times, calculating the measurement precision of the electronic water gauge 2, and carrying out precision calibration on the electronic water gauge 2 with larger measurement error, thereby realizing the precision calibration of the electronic water gauge.
The electronic water gauge of the utility model mainly comprises a control device shell, a measuring rod 22 and a non-contact magnetic ring sleeved on the measuring rod, namely a floating ball, wherein a magnetostrictive wire is arranged in the measuring rod 22; the basic principle is as follows: the central controller 24 sends out an initial pulse signal, when the initial pulse signal is transmitted in the magnetostrictive wire, a rotating magnetic field advancing along the direction of the telescopic wire is generated, when the magnetic field meets the permanent magnetic field in the floating ball magnetic ring, the magnetostrictive effect is generated, the telescopic wire is twisted to generate a twisting pulse signal, the twisting pulse signal is sensed by an energy pickup mechanism arranged in the control device, namely a data acquisition module, and is converted into a corresponding current pulse, and the time difference between the start and the return of the two pulse signals is calculated by the central controller, so that the current page height data and the height displacement condition can be accurately measured.
The utility model discloses an improve measurement accuracy, installed CPLD partial circuit additional on the circuit of current electron water gauge, as data acquisition module, can make the sampling rate to pulse signal improve 100MHz by original 8MHz, improve about 10 times than current electron water gauge measurement accuracy, the precision can reach 0.1 millimeter the highest.
The chip used by the central controller 24 is a control chip U1, and the circuit structure of the central controller 24 is as follows:
the 12 pin, the 13 pin, the 14 pin and the 15 pin of the control chip U1 are respectively connected with the data acquisition module 25;
the pin 7 of the control chip U1 is connected with one end of a resistor R5 and one end of a crystal oscillator JZ1 and then connected with one end of a capacitor C6,
the pin 8 of the control chip U1 is connected with the other end of the resistor R5 and the other end of the crystal oscillator JZ1 in parallel and then connected with one end of a capacitor C10, and the other end of the capacitor C6 is connected with the other end of a capacitor C10 in parallel and then grounded;
the 30 pin, the 31 pin and the 32 pin of the control chip U1 are respectively connected with the communication module 7;
a pin 29 of the control chip U1 is connected with a chip reset end;
the pin 28 of the control chip U1 is connected with the power module 10;
the pin 27 of the control chip U1 is connected with the signal output end of the temperature sensor;
20 pins of the control chip U1 are connected with a capacitor C5 in series and then grounded;
and the pin 18 of the control chip U1 is connected with an AVCC power supply.
The chip used by the data acquisition module 25 is a control chip U2, and the circuit structure of the data acquisition module 25 is as follows:
the 24 pin, the 11 pin, the 9 pin and the 10 pin of the control chip U2 are respectively connected with the electromagnetic sensing output end of the floating ball 23;
a pin 1 of the control chip U2 is connected with the output end of the crystal oscillator module Y1;
the pin 40 of the control chip U2 is connected with the pin 1 of the control chip U1;
the pin 41 of the control chip U2 is connected with the pin 14 of the control chip U1;
the pin 42 of the control chip U2 is connected with the pin 15 of the control chip U1;
the pin 2 of the control chip U2 is connected with the pin 12 of the control chip U1;
the pin 3 of the control chip U2 is connected with the pin 13 of the control chip U1;
the pins 4, 17 and 25 of the control chip U2 are connected with each other and then grounded;
the pin 5 of the control chip U2 is connected with the pin 23 of the control chip U1;
the pin 6 of the control chip U2 is connected with the pin 24 of the control chip U1;
the pin 7 of the control chip U2 is connected with the pin 25 of the control chip U1;
the pin 8 of the control chip U2 is connected with the pin 26 of the control chip U1;
the 12 pins of the control chip U2 are connected with the 2 pins of the control chip U1;
the pin 13 of the control chip U2 is connected with the pin 9 of the control chip U1;
the 14 pin of the control chip U2 is connected with the 10 pin of the control chip U1;
the pin 16 of the control chip U2 is connected with the pin 11 of the control chip U1.
The chip used by the communication module 7 is a communication chip U3, and the circuit structure of the communication module 27 is:
the pin 1 of the communication chip U3 is connected with the pin 30 of the control chip U1;
the pin 2 of the communication chip U3 is connected with the pin 3 of the communication chip U3 in parallel, one end of the resistor R14 is connected with the pin 32 of the control chip U1 in parallel, and the other end of the resistor R14 is grounded;
the pin 4 of the communication chip U3 is connected with the pin 31 of the control chip U1;
the pin 5 of the communication chip U3 is grounded;
the 8-pin of the communication chip U3 is connected with a VCC input power supply.
The chips used by the power module 30 are power chips U4 and U5, and the circuit structure of the power module 30 is as follows:
a pin 1 of the power chip U4 is connected with a pin 2, a pin 5 and a pin 6 of the power chip U4 and one end of a capacitor C15 in parallel, and the anode of an active capacitor C7 is connected with a power supply control end;
a pin 3 of the power chip U4 is connected with one end of a resistor R4 in parallel and then is connected with a collector of a triode Q1, an emitter of the triode Q1 is grounded, and a base of the triode Q1 is connected with a resistor R6 in series and then is connected with the central controller 4;
the 4 pins of the power chip U4 are connected with the other end of the resistor R4 in parallel and then connected with the output end of the 3V power supply;
a pin 1 of the power chip U5 is connected with a pin 2, a pin 5 and a pin 6 of the power chip U4 and one end of a capacitor C16 in parallel, and the anode of an active capacitor C17 is connected with a power supply control end;
a pin 3 of the power chip U5 is connected with one end of a resistor R9 in parallel and then is connected with a collector of a triode Q2, an emitter of the triode Q2 is grounded, and a base of the triode Q2 is connected with a resistor R10 in series and then is connected with the central controller 4;
and the 4 pins of the power chip U5 are connected with the other end of the resistor R9 in parallel and then are connected with a 3.3V power supply output end.
The model of the control chip U1 is ATMEGA168 PA;
the model of the control chip U2 is XC9572 XL;
the model of the communication chip U3 is SP3485 EN;
the model of the power chips U4 and U5 is NTGS 4111P.
The utility model discloses an electronic water gauge 2's theory of operation does: firstly, a control chip U1 sends out an interrogation current pulse, the current pulse is transmitted downwards along a magnetostrictive waveguide wire in a sensing probe of a measuring rod, the sent current pulse generates a circular magnetic field, a corresponding floating ball is arranged outside the sensing probe and floats on a changed liquid level up and down along with the change of the liquid level; a group of permanent magnets are arranged in the floating ball, a magnetic field is generated, when an interrogation current pulse magnetic field is transmitted along the waveguide wire and interacts with the magnetic field of the floating ball, a 'twisted' pulse or a 'return' pulse is generated on the waveguide wire, a control chip U2 receives a pulse signal and feeds the pulse signal back to the control chip U1, and the central controller calculates the actual position of the floating ball according to the interval time between the 'return' pulse and the interrogation current pulse, so that the liquid level value is accurately measured.
When specifically using, the utility model discloses an electronic water gauge 2 is through power chip U4 and U5 by control chip U1 for the analog circuit power supply, then send the start signal by control chip U1 and give control chip U2, send excitation signal by control chip U2 and give analog circuit, send excitation pulse by analog circuit and give the measuring staff, then the measuring staff returns "return pulse" and gives analog circuit, analog circuit carries out signal processing to returning pulse signal, then send the signal after handling for control chip U2 and carry out further processing, again return control chip U1 with handling result data, control chip U1 gathers ambient temperature value simultaneously, do further filtering to data in central controller, handle, calculate, behind the temperature compensation, finally obtain the height value that the precision reaches 0.1mm, and send monitoring server through communication chip U3.
The utility model discloses an electron water gauge 2 is external simultaneously has the communication port, can establish with external monitoring server and be connected, real-time feedback monitoring data, and external server also can be according to actual need, embeds corresponding management and control software, makes it possess data analysis and shows, functions such as dangerous early warning, communication chip U3 communication port specifically is RS485 agreement port, and it is fast to have a transmission speed, and the corresponding time is short, and the fault-tolerant rate is low grade advantage.
The utility model provides a high accuracy electron water gauge performance index as follows: the water level measurement accuracy is 0.1mm, and the resolution ratio is 0.03mm, adopts communication protocol to be RS485 wired port, and communication protocol Modbus-RTU measures the liquid temperature range and is-10 ℃ to 60 ℃ (under the condition of not freezing), and the liquid level measurement scope is 0-1000mm, and the interior module power supply specification is 6-12V direct current, the consumption parameter: the sampling time is less than 80mA, the communication time is less than 5mA, and the sleeping time is less than 3 mA; the utility model discloses possess high accuracy, high stability, high reliability measurement, non-contact measurement, long service life, low power dissipation, it is fast to patrol and examine, and response sensitivity is high, lightning protection, anti radio frequency interference.
The utility model discloses an integrated operation control module 102 that has on microcontroller 101, the last operational circuit that is provided with of operation control module 102, including amplifier circuit, filter circuit, rectifier circuit, realize the accurate control to motor 4 movement distance through displacement sensor 13 and operation control module 102 to improve the calibration accuracy of electron water gauge.
About the utility model discloses what the concrete structure need explain, the utility model discloses a each part module connection relation each other is definite, realizable, except that the special explanation in the embodiment, its specific connection relation can bring corresponding technological effect to based on do not rely on under the prerequisite of corresponding software program execution, solve the utility model provides a technical problem, the utility model provides a model, the connection mode of parts, module, specific components and parts that appear all belong to the prior art such as the published patent that technical staff can acquire before the application day, published journal paper, or common general knowledge, need not to describe in detail for the technical scheme that the present case provided is clear, complete, realizable, and can be according to this technical means or obtain corresponding entity product.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled 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; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (5)
1. The utility model provides an electron water gauge precision calibrating device, includes motion control ware (1) and electron water gauge (2), its characterized in that: a guide rail (3) is placed on one side of the motion controller (1), a motor (4) is arranged at one end of the guide rail (3), a workbench is arranged on the guide rail (3), a sliding seat (5) is fixed on the workbench, the sliding seat (5) is in transmission connection with the guide rail (3) through a lead screw nut, a limit switch (6) is arranged on the front side of the guide rail (3), two fixing plates (7) are arranged on the rear side of the guide rail (3), a circular fixing ring (8) is arranged on one fixing plate (7), and a U-shaped hanging ring (9) is arranged on the other fixing plate (7);
the electronic water gauge (2) comprises a control device (21), one end of the control device (21) extends outwards to be provided with a measuring rod (22), a floating ball (23) is sleeved on a rod body of the measuring rod (22), and the floating ball (23) can slide on the rod body of the measuring rod (22);
a clamping seat (10) for placing a floating ball (23) is arranged on the sliding seat (5), and U-shaped openings are formed in the left end and the right end of the clamping seat (10);
the limit switch (6) comprises a forward switch, a backward switch and an in-situ switch, the forward switch is arranged at one end of the guide rail (3), the backward switch is arranged at the other end of the guide rail (3), and the in-situ switch is arranged at the inner side close to the backward switch;
the control device (21) is sleeved in the circular fixing ring (8), and the tail end of the measuring rod (22) is fixed on the U-shaped hanging ring (9);
a display screen (11) and a key area (12) are arranged on the surface of a shell of the motion controller (1), a circuit control board is arranged inside the motion controller (1), a displacement sensor (13) is also arranged inside the motion controller (1), a microcontroller (101) is integrated on the circuit control board, and an operation control module (102) is integrated on the microcontroller (101);
the displacement sensor is characterized in that the microcontroller (101) is connected with a control end of the motor (4) through a wire, the microcontroller (101) is also connected with the limit switch (6), the display screen (11), the key area (12) and the operation control module (102) through wires, and a signal output end of the displacement sensor (13) is connected with the microcontroller (101) through an AD conversion module (103);
and a control circuit board and a transmitter are arranged in the control device (21), and a central controller (24) is integrated on the control circuit board.
2. The electronic water gauge accuracy calibration device of claim 1, wherein: the round fixing ring (8) is provided with a fastening screw, the inner side of the U-shaped hanging ring (9) is provided with an insulating gasket, the U-shaped hanging ring (9) is provided with a fixing screw hole, the front-back length of the clamping seat (10) is consistent with the diameter of the floating ball (23), and the floating ball (23) is fixedly clamped in the clamping seat (10).
3. The electronic water gauge accuracy calibration device of claim 1, wherein:
a data acquisition module (25) is integrated on the transmitter, and the top of the control device (21) is also provided with a signal output port (26);
the central controller (24) is respectively connected with the data acquisition module (25) and the communication module (27) in a bidirectional way through leads, and the communication module (27) is connected with the monitoring server (28) through an RS485 communication bus;
the central controller (24) is also connected with a data storage module (29), and the power supply input end of the central controller (24) is connected with a power supply module (30).
4. The electronic water gauge accuracy calibration device of claim 1, wherein: and the key area (12) is also provided with control buttons, and the control buttons comprise a forward button, a backward button, a stop button and a reset button.
5. The electronic water gauge accuracy calibration device of claim 3, wherein: the model of a control chip used by the microcontroller (101) is TMS320C 25;
the model of a control chip used by the central controller (24) is ATMEGA168 PA;
the model of the displacement sensor (13) is TP 1-101-41.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021367009.3U CN212340381U (en) | 2020-07-13 | 2020-07-13 | Electronic water gauge precision calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021367009.3U CN212340381U (en) | 2020-07-13 | 2020-07-13 | Electronic water gauge precision calibrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212340381U true CN212340381U (en) | 2021-01-12 |
Family
ID=74081571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021367009.3U Active CN212340381U (en) | 2020-07-13 | 2020-07-13 | Electronic water gauge precision calibrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212340381U (en) |
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2020
- 2020-07-13 CN CN202021367009.3U patent/CN212340381U/en active Active
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