CN207164136U - A kind of high accuracy number power meter - Google Patents
A kind of high accuracy number power meter Download PDFInfo
- Publication number
- CN207164136U CN207164136U CN201721197056.6U CN201721197056U CN207164136U CN 207164136 U CN207164136 U CN 207164136U CN 201721197056 U CN201721197056 U CN 201721197056U CN 207164136 U CN207164136 U CN 207164136U
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- China
- Prior art keywords
- high accuracy
- power meter
- power
- accuracy number
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Abstract
The utility model belongs to power test technical field, and in particular to a kind of high accuracy number power meter.A kind of high accuracy number power meter, including housing (1) and measuring unit, housing (1) front panel is provided with power switch (2), and housing (1) rear board is provided with power input socket (5), input and output binding post (6), RS232 and turns TTL signal address card (7)；The housing (1) is internally provided with 220V and turns double 12V transformers (3), high accuracy number AC power meter PCBA boards (4)；The power switch (2) turns double 12V transformers (3) with 220V, high accuracy number AC power meter PCBA board (4) electrically connects；The power input socket (5), input and output binding post (6), RS232 turn TTL signal address card (7) and electrically connected with high accuracy number AC power meter PCBA board (4)；The utility model has the advantage of：The data such as energy synchronous acquisition voltage, electric current, power, power factor, frequency.
Description
Technical field
The utility model belongs to power test technical field, and in particular to a kind of high accuracy number power meter.
Background technology
At present, then the effect of digital power meter is sent mainly from power supply unit collection voltages, electric current, power etc. parameter
Analyzed and handled into host computer, reach the purpose of test.But existing power meter, measuring accuracy is not high, measurement model
It is single to enclose small and gathered data object, it is impossible to each channel data of synchronous acquisition, when the data difference of acquisition channel, shadow
Ring collection result comparativity, only possess data object simple function, this can not meet economic market requirement with keen competition and
Efficient society is pursued, moreover, can not be used for the equipment for measuring intermittent work, can not meet that power supplies such as " Energy Star " is set
Standby measurement application.
Utility model content
The purpose of this utility model is, there is provided a kind of high accuracy number power meter, synchronous acquisition voltage, electric current, the work(
The data such as rate, power factor, frequency.
A kind of high accuracy number power meter, including housing 1 and measuring unit, the front panel of housing 1 are provided with power supply and opened
2 are closed, the rear board of housing 1 is provided with power input socket 5, input and output binding post 6, RS232 and turns TTL signal address card
7；The housing 1 is internally provided with 220V and turns double 12V transformers 3, high accuracy number AC power meter PCBA board 4；The electricity
Source switch 2 turns double 12V transformers 3 with 220V, high accuracy number AC power meter PCBA board 4 electrically connects；The power input
Socket 5, input and output binding post 6, RS232 turn TTL signal address card 7 and high accuracy number AC power meter PCBA board 4
Electrical connection；The measuring unit includes current transformer, current range switching circuit, voltage modulate circuit, frequency measurement sampling
Circuit, A/D converting units, controller；The current transformer output end is connected with the current range switching circuit input；
The current range switching circuit output end is connected with A/D converting unit inputs；The output end of the A/D change-over circuits and control
Device connection processed；The voltage modulate circuit output end is connected with A/D converting unit inputs；The voltage modulate circuit connects successively
Frequency measurement sample circuit is connect to controller.
Preferably, the controller is connected with DC power module.
Preferably, the A/D converting units employ 32 high speed processors and the bit A/D converter of two-way 24.
Preferably, the measuring unit also includes warning circuit circuit, and the warning circuit is provided with buzzer, the report
The input of alert circuit is connected with controller.
Preferably, the RS232 signals conversion chip set in the RS232/RS485 communication modules is convertible RS485
Signal is simultaneously transferred directly to the controller.
Preferably, the A/D change-over circuits use IC chip, the model of the IC chip
CS5460。
The utility model has the advantage of：The data such as energy synchronous acquisition voltage, electric current, power, power factor, frequency.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the utility model, will make below to required in embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the utility model, right
For those of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings
His accompanying drawing.
Fig. 1 is a kind of high accuracy number power meter schematic diagram of the utility model.
Fig. 2 is a kind of high accuracy number dynamometer systems schematic diagram of the utility model.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this
Utility model, it is not used to limit the utility model.
As depicted in figs. 1 and 2, a kind of high accuracy number power meter in the present embodiment, including housing 1 and measuring unit, institute
State the front panel of housing 1 and be provided with power switch 2, the rear board of housing 1 is provided with power input socket 5, input and output wiring
Terminal 6, RS232 turn TTL signal address card 7；The housing 1 is internally provided with 220V and turns double 12V transformers 3, high accuracy number
AC power meter PCBA board 4；The power switch 2 turns double 12V transformers 3, high accuracy number AC power meter with 220V
PCBA board 4 electrically connects；The power input socket 5, input and output binding post 6, RS232 turn TTL signal address card 7 with it is high-precision
Number of degrees word AC power meter PCBA board 4 electrically connects；The measuring unit include current transformer, current range switching circuit,
Voltage modulate circuit, frequency measurement sample circuit, A/D converting units, controller；The current transformer output end and the electricity
Flow the connection of range switch circuit input；The current range switching circuit output end is connected with A/D converting unit inputs；Institute
The output end for stating A/D change-over circuits is connected with controller；The voltage modulate circuit output end connects with A/D converting units input
Connect；The voltage modulate circuit is sequentially connected frequency measurement sample circuit to controller.
In the present embodiment, the controller is connected with DC power module.
In the present embodiment, the A/D converting units employ 32 high speed processors and the bit A/D converter of two-way 24.
In the present embodiment, the measuring unit also includes warning circuit circuit, and the warning circuit is provided with buzzer, institute
The input for stating warning circuit is connected with controller.
In the present embodiment, the RS232 signals conversion chip set in the RS232/RS485 communication modules is convertible
RS485 signals are simultaneously transferred directly to the controller.
In the present embodiment, the A/D change-over circuits use IC chip, the model of the IC chip
CS5460。
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modification, equivalent substitution or improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (6)
- A kind of 1. high accuracy number power meter, it is characterised in that：Including housing (1) and measuring unit, housing (1) front panel Be provided with power switch (2), housing (1) rear board be provided with power input socket (5), input and output binding post (6), RS232 turns TTL signal address card (7)；The housing (1) is internally provided with 220V and turns double 12V transformers (3), high accuracy numbers AC power meter PCBA board (4)；The power switch (2) turns double 12V transformers (3), high accuracy number alternating currents with 220V Power meter PCBA board (4) electrically connects；The power input socket (5), input and output binding post (6), RS232 turn TTL signal Address card (7) electrically connects with high accuracy number AC power meter PCBA board (4)；The measuring unit include current transformer, Current range switching circuit, voltage modulate circuit, frequency measurement sample circuit, A/D converting units, controller；The electric current is mutual Sensor output end is connected with the current range switching circuit input；The current range switching circuit output end turns with A/D Change the connection of unit input；The output end of the A/D change-over circuits is connected with controller；The voltage modulate circuit output end with A/D converting units input connects；The voltage modulate circuit is sequentially connected frequency measurement sample circuit to controller.
- A kind of 2. high accuracy number power meter according to claim 1, it is characterised in that：The controller and D/C power mould Block connects.
- A kind of 3. high accuracy number power meter according to claim 1, it is characterised in that：The A/D converting units use 32 high speed processors and the bit A/D converter of two-way 24.
- A kind of 4. high accuracy number power meter according to claim 1, it is characterised in that：The measuring unit also includes report Alert circuit, the warning circuit are provided with buzzer, and the input of the warning circuit is connected with controller.
- 5. according to a kind of high accuracy number power meter described in claim 1, it is characterised in that：The RS232/RS485 communicates mould The RS232 signals conversion chip set in block is convertible RS485 signals and is transferred directly to the controller.
- 6. according to a kind of high accuracy number power meter described in claim 1, it is characterised in that：The A/D change-over circuits are using collection Into circuit chip, the model CS5460 of the IC chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721197056.6U CN207164136U (en) | 2017-09-15 | 2017-09-15 | A kind of high accuracy number power meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721197056.6U CN207164136U (en) | 2017-09-15 | 2017-09-15 | A kind of high accuracy number power meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207164136U true CN207164136U (en) | 2018-03-30 |
Family
ID=61722306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721197056.6U Expired - Fee Related CN207164136U (en) | 2017-09-15 | 2017-09-15 | A kind of high accuracy number power meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207164136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548971A (en) * | 2018-04-04 | 2018-09-18 | 成都信息工程大学 | A kind of electrical appliance on-line monitoring equipment and system |
-
2017
- 2017-09-15 CN CN201721197056.6U patent/CN207164136U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548971A (en) * | 2018-04-04 | 2018-09-18 | 成都信息工程大学 | A kind of electrical appliance on-line monitoring equipment and system |
| CN108548971B (en) * | 2018-04-04 | 2023-12-01 | 成都信息工程大学 | Online monitoring equipment and system for electrical appliances |
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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 |
Granted publication date: 20180330 Termination date: 20190915 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |