CN216052144U - Automatic calibrating device of digital multimeter - Google Patents
Automatic calibrating device of digital multimeter Download PDFInfo
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- CN216052144U CN216052144U CN202121277134.XU CN202121277134U CN216052144U CN 216052144 U CN216052144 U CN 216052144U CN 202121277134 U CN202121277134 U CN 202121277134U CN 216052144 U CN216052144 U CN 216052144U
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- calibration
- digital multimeter
- automatic
- signal connecting
- display screen
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Abstract
The utility model discloses an automatic calibration device of a digital multimeter, which relates to the field of electrical metering equipment. The automatic calibration device of the digital multimeter can realize automatic calibration of the digital multimeter, improves the anti-interference performance and the calibration efficiency of the multimeter calibration process, and improves the calibration accuracy.
Description
Technical Field
The utility model relates to the field of electrical metering equipment, in particular to an automatic calibration device for a digital multimeter.
Background
In daily electrical metering calibration work, digital multimeters are one of the most used types of electrical metering devices. A single multimeter generally has the functions of measuring direct-current voltage, alternating-current voltage, direct current, alternating current and resistance, and partial multimeters also have the functions of measuring frequency, capacitance and the like. The multimeter comprises a plurality of measuring ranges under each function, a plurality of calibration points under each measuring range, and the technical indexes of the measuring ranges are different. Because the universal meter does not have a program control interface, the conventional universal meter can only be used for manual metering, manual reading and counting are easy to make mistakes, the error calculation amount is large, the labor intensity of personnel is high, the calibration time is long, and the working efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem of providing an automatic calibration device for a digital multimeter, which can realize automatic calibration of the digital multimeter, improve the anti-interference performance and the calibration efficiency of the multimeter during the calibration process, and improve the calibration accuracy.
In order to achieve the above purpose, the present invention provides the following technical solutions:
this automatic calibrating device of digital multimeter is including the multimeter body of installing display screen and battery, multimeter body internally mounted has calibration module, controller, radio signal connecting device, and the battery passes through the electric wire to be connected with calibration module, controller, radio signal connecting device, display screen, and the controller passes through the data line to be connected with calibration module, radio signal connecting device, display screen, and radio signal connecting device is connected with intelligent calibration terminal.
As further optimization of the technical scheme, the display screen is an LCD (liquid crystal display).
As a further optimization of the technical scheme, the storage battery is a lithium battery and is provided with a charging device.
As a further optimization of the technical scheme, the controller is a chip with a model AD 7520.
As a further optimization of the technical solution, the wireless signal connection device is a wireless bluetooth communication device.
As a further optimization of the technical scheme, the intelligent calibration terminal is a computer device provided with a wireless Bluetooth communication device.
The beneficial effect of adopting above technical scheme is: this automatic calibrating device of digital multimeter can carry out the electricity measurement with the multimeter body when using and measure, the data that the multimeter body measured transmit for wireless signal connecting device through the controller, and transmit for intelligent calibration terminal through wireless signal connecting device, intelligent calibration terminal passes through the database analysis, feed back the calibration suggestion to the controller through wireless signal connecting device, the automatic calibration work is accomplished to the last control calibration module of controller, and react out through the display screen with the process and the result of calibration. The automatic calibration device of the digital multimeter can realize automatic calibration of the digital multimeter, improves the anti-interference performance and the calibration efficiency of the multimeter calibration process, and improves the calibration accuracy.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the automatic calibration device for the digital multimeter;
FIG. 2 is a schematic diagram of the digital multimeter automated calibration apparatus.
The system comprises a universal meter body 1, an intelligent calibration terminal 2, a calibration module 3, a controller 4, a wireless signal connecting device 5, a display screen 6 and a storage battery 7.
Detailed Description
The following describes a preferred embodiment of the digital multimeter automated calibration apparatus in detail with reference to the accompanying drawings.
Fig. 1 and 2 show a specific embodiment of the automatic calibration device for the digital multimeter:
combine fig. 1 and fig. 2, this automatic calibrating device of digital multimeter is including multimeter body 1 who installs display screen 6 and battery 7, 1 internally mounted of multimeter body has calibration module 3, controller 4, wireless signal connecting device 5, battery 7 passes through electric wire and calibration module 3, controller 4, wireless signal connecting device 5, display screen 6 is connected, controller 4 passes through data line and calibration module 3, wireless signal connecting device 5, display screen 6 is connected, wireless signal connecting device 5 is connected with intelligent calibration terminal 2.
Multimeter body 1 is a digital multimeter. The display screen 6 is an LCD (liquid crystal display) screen, the display effect is good, and the power consumption is low. The battery 7 is the lithium cell, and battery 7 provides the electric energy for calibration module 3, controller 4, wireless signal connecting device 5, display screen 6, and is furnished with charging device, can charge repeatedly and use. The controller 4 is a chip with the model AD7520, and has strong functions, high running speed and strong computing capability. The wireless signal connecting device 5 is a wireless Bluetooth communication device, and the wireless communication effect is good. The intelligent calibration terminal 2 is a computer device provided with a wireless Bluetooth communication device, and has powerful functions and convenient and reliable use.
This automatic calibrating device of digital multimeter can carry out the electricity measurement with multimeter body 1 when using, the data that multimeter body 1 measured transmit for wireless signal connecting device 5 through controller 4, and transmit for intelligent calibration terminal 2 through wireless signal connecting device 5, intelligent calibration terminal 2 passes through the database analysis, feed back the calibration suggestion to controller 4 through wireless signal connecting device 5, automatic calibration work is accomplished to 3 control calibration module of controller 4 final control, and the process and the result of will calibrating are reacted out through display screen 6. The automatic calibration device of the digital multimeter can realize automatic calibration of the digital multimeter, improves the anti-interference performance and the calibration efficiency of the multimeter calibration process, and improves the calibration accuracy.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the inventive concept of the present invention, which falls into the protection scope of the present invention.
Claims (6)
1. The utility model provides an automatic calibrating device of digital multimeter which characterized in that: automatic calibrating device of digital multimeter is including universal meter body (1) of installing display screen (6) and battery (7), universal meter body (1) internally mounted has calibration module (3), controller (4), radio signal connecting device (5), battery (7) are through electric wire and calibration module (3), controller (4), radio signal connecting device (5), display screen (6) are connected, controller (4) are through data line and calibration module (3), radio signal connecting device (5), display screen (6) are connected, radio signal connecting device (5) are connected with intelligent calibration terminal (2).
2. The automatic calibration device of a digital multimeter of claim 1, wherein: the display screen (6) is an LCD liquid crystal display screen.
3. The automatic calibration device of a digital multimeter of claim 1, wherein: the storage battery (7) is a lithium battery and is provided with a charging device.
4. The automatic calibration device of a digital multimeter of claim 1, wherein: the controller (4) is a chip with the model AD 7520.
5. The automatic calibration device of a digital multimeter of claim 1, wherein: the wireless signal connecting device (5) is a wireless Bluetooth communication device.
6. The automatic calibration device of a digital multimeter of claim 1, wherein: the intelligent calibration terminal (2) is a computer device provided with a wireless Bluetooth communication device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121277134.XU CN216052144U (en) | 2021-06-02 | 2021-06-02 | Automatic calibrating device of digital multimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121277134.XU CN216052144U (en) | 2021-06-02 | 2021-06-02 | Automatic calibrating device of digital multimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216052144U true CN216052144U (en) | 2022-03-15 |
Family
ID=80613791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121277134.XU Expired - Fee Related CN216052144U (en) | 2021-06-02 | 2021-06-02 | Automatic calibrating device of digital multimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216052144U (en) |
-
2021
- 2021-06-02 CN CN202121277134.XU patent/CN216052144U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220315 |