CN201974475U - Direct current energy measuring device - Google Patents
Direct current energy measuring device Download PDFInfo
- Publication number
- CN201974475U CN201974475U CN2010206571935U CN201020657193U CN201974475U CN 201974475 U CN201974475 U CN 201974475U CN 2010206571935 U CN2010206571935 U CN 2010206571935U CN 201020657193 U CN201020657193 U CN 201020657193U CN 201974475 U CN201974475 U CN 201974475U
- Authority
- CN
- China
- Prior art keywords
- direct current
- sampling module
- module
- measuring device
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model discloses a direct current energy measuring device used for metering a direct current source (DC source) with high voltage and heavy current. The direct current energy measuring device provided in the present utility model comprises a display module, a data memory module, a central processing unit, a precision metering chip and a sampling module. The utility model is characterized in that: the sampling module comprises a voltage transmitter, a Hall sensor and an A/D sampling module, wherein the voltage transmitter is used for converting the thousands volts of the direct current voltage to the 4-20mA analog signal, the Hall sensor is used for converting the heavy current to the 4-20mA analog signal, and the A/D sampling module is used for converting the 4-20mA analog signal to the data signal and sending the data signal to the precision metering chip. The multiloop direct current energy measuring device adopting the whole electronic device has higher accuracy of measuring, longer service life and better external anti-interference capability and has a simultaneous multiloop metering function; the utility model also has characteristics of low user cost, convenience in use and in monitor.
Description
Technical field
The utility model relates to a kind of being fit to accumulator, solar panel, and the metering of dc energy sources such as direct supply also can be used for industrial and mining enterprises, covil construction, the modern times such as building automatic are for the direct current energy measuring device of joining dc system.
Background technology
In recent years, along with the generation and the application of new forms of energy such as sun power, wind energy, need a kind of automatic gauge utensil that can measure the direct current energy.The direct current energy measurement instrument that has in the market is the direct electric resistance partial pressure sampling of voltage mostly, electric current uses the direct power taking stream of shunt signal to sample, this kind mode advantage is few for disturbing, the precision height, weak point is not suitable in being to use when big electric current high voltage, and accident appears in improper use easily.
In addition,, want to refill measuring apparatus, must the electric current line will be cut off in case cloth is good for the engineering site circuit, remove to install measurement instrument again, quantities is big, particularly big electric current, installation difficulty is big, for fear of above-mentioned deficiency of the prior art, provides a kind of Novel DC electric energy measurement mode.
Summary of the invention
In order to overcome above-mentioned deficiency, the utility model purpose is to provide a kind of big electric current of direct current and high-tension direct current energy measuring device of direct current of measuring.
To achieve these goals, the technical solution adopted in the utility model is: a kind of direct current energy measuring device, it includes display module, data memory module, central processing unit, precision computation chip and sampling module, described precision computation chip, the signal that transmits in order to the sampling module that will receive measures, and the signal after will measuring sends central processing unit to, central processing unit obtains electrical energy parameter according to the calculated signals after measuring, and send electrical energy parameter to display module or store in the data memory module, it is characterized in that: described sampling module includes voltage transmitter, Hall element and A/D sampling module, voltage transmitter, in order to will be converted to the simulating signal of 4 ~ 20mA up to last kilovolt DC voltage, Hall element is in order to being the simulating signal of 4 ~ 20mA with big current conversion, the A/D sampling module sends the precision computation chip to after becoming digital signal in order to the analog signal conversion with 4 ~ 20mA.
Described central processing unit also is connected with the clock circuit module.
The beneficial effects of the utility model: adopt the brand-new multiloop direct current energy measurement mechanism of all electronic device,, have the higher accuracy of measuring than the direct current energy meter of traditional mechanical electromagnetic structure; Simultaneously, longer serviceable life and outside antijamming capability are arranged, and have the function that multiloop measures simultaneously; It is low, easy to use that the utility model also has a user cost, the characteristics of being convenient to monitor.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the structured flowchart of electric principle of the present utility model.
Among the figure: 1, voltage transmitter; 2, display module; 3, data memory module; 4, central processing unit; 5, Hall element; 6, clock circuit module; 7, precision computation chip; 8, sampling module; 9, A/D sampling module.
Embodiment
As shown in Figure 1, a kind of direct current energy measuring device, it includes display module 2, data memory module 3, central processing unit 4, precision computation chip 7 and sampling module 8, described precision computation chip 7, the signal that transmits in order to the sampling module 8 that will receive measures, and the signal after will measuring sends central processing unit 4 to, central processing unit 4 obtains electrical energy parameter according to the calculated signals after measuring, and send electrical energy parameter to display module 2 or store in the data memory module 3, it is characterized in that: described sampling module 8 includes voltage transmitter 1, Hall element 5 and A/D sampling module 9, voltage transmitter 1 will be in order to will be converted to the simulating signal of 4 ~ 20mA up to last kilovolt DC voltage; Hall element 5 is in order to being the simulating signal of 4 ~ 20mA with big current conversion; A/D sampling module 9 sends precision computation chip 7 to after becoming digital signal in order to the analog signal conversion with 4 ~ 20mA.Described central processing unit 4 also is connected with clock circuit module 6.
At engineering site in order to monitor high voltage, utilize voltage transmitter, last kilovolt voltage transitions is become the simulating signal of 4 ~ 20mA, equally, also can use Hall element in order to monitor big electric current, become the analog signals of 4 ~ 20mA to export hundreds and thousands of amperes current conversion, the utility model utilizes these two signals to measure high pressure just, and straight-flow system is used the electric energy situation under the environment of big electric current.
Claims (2)
1. direct current energy measuring device, include display module (2), data memory module (3), central processing unit (4), precision computation chip (7) and sampling module (8), described precision computation chip (7), the signal that transmits in order to the sampling module (8) that will receive measures, and the signal after will measuring sends central processing unit (4) to, central processing unit (4) obtains electrical energy parameter according to the calculated signals after measuring, and send electrical energy parameter to display module (2) or store in the data memory module (3), it is characterized in that: described sampling module (8) includes voltage transmitter (1), Hall element (5) and A/D sampling module (9), voltage transmitter (1) will be in order to will be converted to the simulating signal of 4 ~ 20mA up to last kilovolt DC voltage; Hall element (5) is in order to being the simulating signal of 4 ~ 20mA with big current conversion; A/D sampling module (9) sends precision computation chip (7) to after becoming digital signal in order to the analog signal conversion with 4 ~ 20mA.
2. direct current energy measuring device according to claim 1 is characterized in that: described central processing unit (4) also is connected with clock circuit module (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206571935U CN201974475U (en) | 2010-12-14 | 2010-12-14 | Direct current energy measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206571935U CN201974475U (en) | 2010-12-14 | 2010-12-14 | Direct current energy measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201974475U true CN201974475U (en) | 2011-09-14 |
Family
ID=44579575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206571935U Expired - Fee Related CN201974475U (en) | 2010-12-14 | 2010-12-14 | Direct current energy measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201974475U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630738A (en) * | 2013-09-12 | 2014-03-12 | 鹤山联塑实业发展有限公司 | Multifunctional power consumption detection equipment |
| CN103728489A (en) * | 2012-10-16 | 2014-04-16 | 苏州工业园区新宏博通讯科技有限公司 | High-voltage direct current meter |
| CN103777071A (en) * | 2012-10-26 | 2014-05-07 | 苏州工业园区新宏博通讯科技有限公司 | High voltage DC electric energy meter |
| CN103792401A (en) * | 2012-10-30 | 2014-05-14 | 苏州工业园区新宏博通讯科技有限公司 | DC electricity meter board card module |
| CN107315156A (en) * | 2017-08-09 | 2017-11-03 | 浙江涵普电力科技有限公司 | High-accuracy direct current standard electric energy meter |
| CN111308175A (en) * | 2020-03-16 | 2020-06-19 | 国网上海市电力公司 | Multi-loop synchronous measurement ammeter and measurement method thereof |
-
2010
- 2010-12-14 CN CN2010206571935U patent/CN201974475U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728489A (en) * | 2012-10-16 | 2014-04-16 | 苏州工业园区新宏博通讯科技有限公司 | High-voltage direct current meter |
| CN103777071A (en) * | 2012-10-26 | 2014-05-07 | 苏州工业园区新宏博通讯科技有限公司 | High voltage DC electric energy meter |
| CN103792401A (en) * | 2012-10-30 | 2014-05-14 | 苏州工业园区新宏博通讯科技有限公司 | DC electricity meter board card module |
| CN103630738A (en) * | 2013-09-12 | 2014-03-12 | 鹤山联塑实业发展有限公司 | Multifunctional power consumption detection equipment |
| CN107315156A (en) * | 2017-08-09 | 2017-11-03 | 浙江涵普电力科技有限公司 | High-accuracy direct current standard electric energy meter |
| CN107315156B (en) * | 2017-08-09 | 2024-04-16 | 浙江涵普电力科技有限公司 | High-precision direct-current standard electric energy meter |
| CN111308175A (en) * | 2020-03-16 | 2020-06-19 | 国网上海市电力公司 | Multi-loop synchronous measurement ammeter and measurement method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201974475U (en) | Direct current energy measuring device | |
| CN202066529U (en) | Waterpower and water quality integrative measuring device of water supply pipeline | |
| JP2013135605A (en) | Power quality monitoring device in railroad power system | |
| CN110171319B (en) | Three-phase standard alternating-current charging pile capable of being used for tracing | |
| CN110568396A (en) | Installation type standard meter and system and method for calibration by using same | |
| CN203259595U (en) | Full-automatic digital megohmmeter | |
| CN103018697B (en) | A kind of Multifunctional multi-epitope voltage monitor calibrator | |
| CN203117697U (en) | Current monitoring module | |
| CN201436638U (en) | Digital electric energy metering device for conventional transformer station | |
| WO2008095277A1 (en) | Hybrid renewable power monitor and data logger | |
| CN202631627U (en) | Strong electromagnetic field resistant intelligent ammeter | |
| CN107884653B (en) | Electricity inspection equipment for extensible module | |
| CN202049195U (en) | Electric meter | |
| CN201740818U (en) | Hand generation rechargeable megohmmeter | |
| CN201069466Y (en) | Power meter for accumulator | |
| CN202997213U (en) | Multifunctional socket | |
| CN103575997A (en) | High-voltage digital insulation resistance tester | |
| CN201732123U (en) | Constant-flow type earthing resistance tester | |
| CN103868617A (en) | Platinum resistor temperature measuring circuit | |
| CN202614655U (en) | Pavement friction coefficient measurement device | |
| CN201903584U (en) | Multifunction direct current electricity meter for photovoltaic system | |
| CN201167121Y (en) | Number display device for electric bicycle quantity | |
| CN203433017U (en) | Three-phase opening-closing CT electric energy meter | |
| CN203672963U (en) | Digital voltmeter based on singlechip | |
| CN201535815U (en) | Ampere-hour detection circuit of battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20191214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |