CN210742487U - Pulse photoelectric conversion device for electric energy meter electric fast transient pulse group - Google Patents
Pulse photoelectric conversion device for electric energy meter electric fast transient pulse group Download PDFInfo
- Publication number
- CN210742487U CN210742487U CN201921393465.2U CN201921393465U CN210742487U CN 210742487 U CN210742487 U CN 210742487U CN 201921393465 U CN201921393465 U CN 201921393465U CN 210742487 U CN210742487 U CN 210742487U
- Authority
- CN
- China
- Prior art keywords
- pulse
- electric energy
- energy meter
- emitting diode
- photoelectric conversion
- 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.)
- Active
Links
Images
Landscapes
- Electronic Switches (AREA)
Abstract
The utility model provides a pulse photoelectric conversion device of electric energy meter electricity fast transient pulse crowd, this device comprises impulse generator U1, emitting diode D1, definite value resistance R1, sensitization triode Q1, definite value resistance R2, emitting diode D2, DC power supply. The device reads the pulse electrical signal of the electric energy meter through the on-off of the circuit, converts the pulse electrical signal into an optical signal and is used for signal acquisition of the photoelectric head of the electric energy meter. The device can convert an electric signal into a reliable optical signal, the photoelectric head of the electric energy meter collects the optical signal and transmits the optical signal to the detection device, and the detection device processes error calculation. The device obviously improves the reliability and accuracy of detection. The device has simple structure and convenient use.
Description
Technical Field
The utility model relates to an electric energy meter detection device technical field specifically is an electric energy meter electricity fast transient pulse crowd's pulsed photoelectricity conversion equipment.
Background
At present, in an electric fast transient pulse group immunity test of an electric energy meter, two signal acquisition modes are adopted: (1) a photoelectric acquisition mode (2) and a pulse end reading mode. The photoelectric acquisition mode is that a pulse indicator lamp of the electric energy meter is acquired by a photoelectric acquisition device (namely, a photoelectric head of the electric energy meter) to flicker, and the pulse indicator lamp is converted into an electric signal to be transmitted to a detection device, and the detection device processes error calculation. The pulse end reading mode is that the pulse end reads an electric signal through the on-off of a circuit and transmits the electric signal to the detection device, and the detection device processes error calculation. The problems existing in the two modes are as follows: (1) some pulse indicator lamps of electric energy meters are in a nixie tube display mode, so that the display brightness is not enough, the accuracy of the photoelectric collector is affected, and further, the detection result of the detection equipment has errors. (2) In the pulse end reading mode, because the pulse terminal is too close to the interference applying circuit, if an electric energy meter manufacturer does not perform isolation in the design of an electric meter, interference may cause certain influence on a standard meter.
To sum up, to some electric energy meters of pulse digital display, if adopt the photoelectricity collection mode, there is high unreliability in the pulse pilot lamp collection mode, can lead to the testing result of check out test set to have the error, if adopt the pulse end to read the mode, can have the possibility of influencing the standard table.
Disclosure of Invention
The utility model discloses a remedy prior art not enough, provide a simple structure, convenient to use, measure accurate electric energy meter electricity fast transient pulse crowd's pulse photoelectric conversion equipment.
The utility model discloses a realize through following technical scheme:
the utility model discloses a pulse photoelectric conversion device of electric energy meter electricity fast transient pulse crowd, its characterized in that: comprises a pulse signal generating device, a photoelectric coupling device and a photoelectric conversion device which are connected in sequence.
The photoelectric acquisition device is close to the photoelectric conversion device to acquire optical signals; photoelectric acquisition device one end can connect the electric energy meter, and detection device can be connected to the other end, sends light signal to detection device.
The photoelectric acquisition device adopts an electric energy meter photoelectric head, and the detection device adopts a portable three-phase electric energy meter detection device.
One end of the photoelectric head of the electric energy meter is connected with the electric energy meter, and the other end of the photoelectric head of the electric energy meter is connected with the detection device through the signal decoupling network device.
The pulse signal generating device adopts a pulse generator U1; the photoelectric coupling device comprises a light emitting diode D2, a constant value resistor R2 and a phototransistor Q1; the photoelectric conversion device comprises a fixed value resistor R1, a light emitting diode D1 and a direct current power supply; the pulse generator U1 outputs a pulse signal after the electric energy is accumulated to a certain value; the output end of the pulse generator U1 is connected to the input end of the light-emitting diode D2, and the output end of the light-emitting diode D2 is connected with the fixed value resistor R2 and used for limiting current; the other end of the constant resistor R2 is directly grounded; the phototransistor Q1 is close to the light-emitting diode D2, when the light-emitting diode D2 is lighted, the phototransistor Q1 absorbs light energy and converts the light energy into electric energy to be conducted, and the phototransistor Q1 plays a role of a switch; the positive electrode of the phototriode Q1 is connected with a direct-current power supply, the emitter is connected with one end of a constant value resistor R1, and the constant value resistor R1 plays a role in limiting current; the other end of the constant resistor R1 is connected with the anode of the light emitting diode D1, and the cathode of the light emitting diode D1 is directly grounded.
The direct current power supply adopts a 5V power supply.
The pulse generator U1 is self-contained with the electric energy meter. The light emitting diode D1, the fixed value resistor R1, the phototransistor Q1, the fixed value resistor R2, the light emitting diode D2 and the direct current power supply are arranged in a box body of the pulse photoelectric conversion device.
The components of the utility model are all commercially available components.
The utility model discloses a theory of operation is: when the pulse signal generator U1 outputs a pulse signal due to the accumulation of electric energy to a certain value, the pulse signal has a certain electric energy to make the LED D2 emit a certain brightness. Meanwhile, the phototransistor Q1 is directly conducted due to the photoelectric coupling, so that the voltage of the direct current power supply is applied to the diode D1 through the phototransistor Q1, and the light emitting diode D1 emits strong light. Through photoelectric coupling, the pulse signal output by the pulse signal generator U1 is directly converted into a strong light signal which can be identified by detection equipment and is emitted by a light-emitting diode D1, then the light signal is collected by a photoelectric head of an electric energy meter and is transmitted to a detection device, and the detection device processes error calculation and error detection, so that the reliability and the accuracy of detection are improved. The photoelectric coupling device can isolate external pulse interference, so that the light emitting diode D1 is not interfered.
The beneficial effects of the utility model are that, on some pulse display is digital display's electric energy meter, the pulse signal of telecommunication who sends the electric energy meter converts reliable light signal into through photoelectric coupling method and is used for equipment to detect, is showing reliability and the accuracy that has improved the detection. The device has simple structure and convenient use.
Drawings
Fig. 1 is a schematic structural diagram of the present invention. Fig. 2 is a schematic structural block diagram.
In the figure: 1, a pulse generator U1, 2, a light emitting diode D2, 3, a constant value resistor R2, a 4-light sensitive triode Q1, 5, a constant value resistor R1, 6, a light emitting diode D1, 7 and a direct current power supply 5V.
Detailed Description
The attached drawing is a concrete embodiment of the utility model.
The utility model discloses a pulse photoelectric conversion device of electric energy meter electricity fast transient pulse crowd, including the pulse signal generating device, optoelectronic coupling device, the photoelectric conversion device that connect gradually.
The photoelectric acquisition device is close to the photoelectric conversion device to acquire optical signals; photoelectric acquisition device one end can connect the electric energy meter, and detection device can be connected to the other end, sends light signal to detection device.
The photoelectric acquisition device adopts an electric energy meter photoelectric head, and the detection device adopts a portable three-phase electric energy meter detection device.
One end of the photoelectric head of the electric energy meter is connected with the electric energy meter, and the other end of the photoelectric head of the electric energy meter is connected with the detection device through the signal decoupling network device.
The utility model discloses a pulse photoelectric conversion device of an electric energy meter electric fast transient pulse group, wherein a pulse generator U1 is adopted as the pulse generator; the photoelectric coupling device comprises a light emitting diode D2, a constant value resistor R2 and a phototransistor Q1; the photoelectric conversion device comprises a fixed resistor R1, a light-emitting diode D1 and a direct current power supply.
The pulse generator U1 is a controller, and outputs a pulse signal when the power is accumulated to a certain value.
The output end of the pulse generator U1 is connected to the input end of the light emitting diode D2, and the output end of the light emitting diode D2 is connected to the fixed value resistor R2 for current limiting. The other end of the fixed resistor R2 is directly connected to ground. The transistor Q1 is close to the led D2, and when the led D2 is lit, the transistor Q1 absorbs light energy and converts the light energy into electric energy to be turned on, thereby functioning as a switch. The positive pole of the phototriode Q1 is connected with a direct current power supply, and the emitting pole is connected with one end of a constant value resistor R1. The fixed resistor R1 functions as a current limiting element in the circuit. The other end of the constant resistor R1 is connected with the anode of the light emitting diode D1, and the cathode of the light emitting diode D1 is directly grounded.
The direct current power supply adopts a 5V power supply.
The pulse generator U1 is self-contained with the electric energy meter. The light emitting diode D1, the fixed value resistor R1, the phototransistor Q1, the fixed value resistor R2, the light emitting diode D2 and the direct current power supply are arranged in a box body of the pulse photoelectric conversion device.
The box body is provided with a small hole to expose the light emitting diode D1, so that the photoelectric head of the electric energy meter can conveniently collect optical signals.
The utility model discloses a pulse photoelectric conversion equipment for detecting electric energy meter reads the pulse electric signal of electric energy meter from the pulse port through the circuit break-make to convert the signal of telecommunication into optical signal, carry out the error detection after gathering the optical signal through the photoelectricity collection system, solved some electric energy meter electricity fast transient pulse crowd of pulse digital display in experimental problem that the detection precision has the mistake, showing the precision that has improved equipment detection.
Claims (5)
1. A pulse photoelectric conversion device of an electric energy meter electric fast transient pulse group is characterized in that: comprises a pulse signal generating device, a photoelectric coupling device and a photoelectric conversion device which are connected in sequence;
the photoelectric acquisition device is close to the photoelectric conversion device to acquire optical signals; photoelectric acquisition device one end can connect the electric energy meter, and detection device can be connected to the other end, sends light signal to detection device.
2. The pulse photoelectric conversion device for the electric energy meter electric fast transient pulse group according to claim 1, characterized in that: the photoelectric acquisition device adopts an electric energy meter photoelectric head, and the detection device adopts a portable three-phase electric energy meter detection device.
3. The pulse photoelectric conversion device for the electric energy meter electric fast transient pulse group according to claim 1, characterized in that: the pulse signal generating device adopts a pulse generator U1; the photoelectric coupling device comprises a light emitting diode D2, a constant value resistor R2 and a phototransistor Q1; the photoelectric conversion device comprises a fixed value resistor R1, a light emitting diode D1 and a direct current power supply; the pulse generator U1 outputs a pulse signal after the electric energy is accumulated to a certain value; the output end of the pulse generator U1 is connected to the input end of the light-emitting diode D2, and the output end of the light-emitting diode D2 is connected with the fixed value resistor R2 and used for limiting current; the other end of the constant resistor R2 is directly grounded; the phototransistor Q1 is close to the light-emitting diode D2, when the light-emitting diode D2 is lighted, the phototransistor Q1 absorbs light energy and converts the light energy into electric energy to be conducted, and the phototransistor Q1 plays a role of a switch; the positive electrode of the phototriode Q1 is connected with a direct-current power supply, the emitter is connected with one end of a constant value resistor R1, and the constant value resistor R1 plays a role in limiting current; the other end of the constant resistor R1 is connected with the anode of the light emitting diode D1, and the cathode of the light emitting diode D1 is directly grounded.
4. The pulse photoelectric conversion device for the electric energy meter electric fast transient pulse group according to claim 3, characterized in that: the direct current power supply adopts a 5V power supply.
5. The pulse photoelectric conversion device for the electric energy meter electric fast transient pulse group according to claim 1, characterized in that: the pulse generator U1 is arranged in the electric energy meter; the light emitting diode D1, the fixed value resistor R1, the phototransistor Q1, the fixed value resistor R2, the light emitting diode D2 and the direct current power supply are arranged in a box body of the pulse photoelectric conversion device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921393465.2U CN210742487U (en) | 2019-08-26 | 2019-08-26 | Pulse photoelectric conversion device for electric energy meter electric fast transient pulse group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921393465.2U CN210742487U (en) | 2019-08-26 | 2019-08-26 | Pulse photoelectric conversion device for electric energy meter electric fast transient pulse group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210742487U true CN210742487U (en) | 2020-06-12 |
Family
ID=70981547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921393465.2U Active CN210742487U (en) | 2019-08-26 | 2019-08-26 | Pulse photoelectric conversion device for electric energy meter electric fast transient pulse group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210742487U (en) |
-
2019
- 2019-08-26 CN CN201921393465.2U patent/CN210742487U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201974475U (en) | Direct current energy measuring device | |
| CN101520362B (en) | Air leakage measuring device of engine piston | |
| CN210742487U (en) | Pulse photoelectric conversion device for electric energy meter electric fast transient pulse group | |
| CN102062808A (en) | Front-end equipment power supply voltage detection circuit for video monitoring system, and electronic monitoring equipment | |
| CN212008876U (en) | Circuit for monitoring working state of switching power supply | |
| CN210201734U (en) | Device compatible with converting various alternating voltages into same output voltage | |
| CN209962910U (en) | State detection terminal of power switch | |
| CN205027852U (en) | Electric wire breakpoint detector | |
| CN202652655U (en) | Led constant current drive circuit | |
| CN210090655U (en) | Point inspection conduction pen | |
| CN211086562U (en) | Commercial power ground wire connectivity detection circuit and device | |
| CN203643520U (en) | Optoelectronic coupler fault detector | |
| CN113960341A (en) | Ammeter and zero line detection circuitry falls thereof | |
| CN103868617A (en) | Platinum resistor temperature measuring circuit | |
| CN220475763U (en) | Optical pulse converter, optical signal processing module and electronic equipment | |
| CN201463946U (en) | Engine piston air loss measuring instrument | |
| CN202634851U (en) | Constant-current driving circuit for LEDs in system test | |
| CN201576083U (en) | Measuring device for high-voltage pulse power supply of laser xenon lamp | |
| CN112305300B (en) | Voltage detection sensor and system | |
| CN205176223U (en) | Tester takes place for readable formula direct current | |
| CN216248915U (en) | Metering device for 16-way ignition delay time of program controller detection equipment | |
| CN218349567U (en) | Pulse modulation system for non-magnetic collection of water meter | |
| CN110082599A (en) | A kind of insulating monitoring circuit | |
| CN202870231U (en) | Multifunctional electric power detector | |
| CN218937568U (en) | Sampling circuit for monitoring laser energy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |