CN2126437U - Electric quantity transmitter - Google Patents
Electric quantity transmitter Download PDFInfo
- Publication number
- CN2126437U CN2126437U CN 92219217 CN92219217U CN2126437U CN 2126437 U CN2126437 U CN 2126437U CN 92219217 CN92219217 CN 92219217 CN 92219217 U CN92219217 U CN 92219217U CN 2126437 U CN2126437 U CN 2126437U
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- China
- Prior art keywords
- motherboard
- transformer
- utility
- circuit
- model
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- 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.)
- Granted
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- 238000012545 processing Methods 0.000 claims abstract description 8
- 238000005070 sampling Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 2
- 230000009975 flexible effect Effects 0.000 abstract description 2
- 230000002860 competitive effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model discloses an electric quantity transmitter which is capable of monitoring, changing, delivering various electrical parameters, comprising a casing of the device, an instrument panel with plug-in connecting piece, a mainboard which is arranged on the casing of the device, a transformer, a mutual inductor, a transducer, etc. While the mainboard is composed of a sample hold circuit, a central processing circuit and power supply circuit which are connected together. The utility model has the advantages of high precision, stable reliability, convenient and flexible installation and simple structure, and the performance-to-cost ratio has strong market competitive power.
Description
The utility model relates to a kind of electric parameters transducer that can monitor, change, transmit various electrical quantitys.
A kind of micro electronmechanical transmitter is arranged at present, and its core is a microcomputer.This electric parameters transducer complex structure, the cost height, the ratio of performance to price lacks the market competitiveness.
The purpose of this utility model just is that avoiding the shortcoming of prior art and providing a kind of is the electric parameters transducer that core constitutes by single-chip microcomputer, it should be simple in structure, cost is low, has the digital quantity output function, and in sample conversion, finish complex calculations, the ratio of performance to price has the very strong market competitiveness.
The utility model is to adopt following measure to realize its goal of the invention.
By Instrument shell, have the instrument panel that patches web member, be placed in the motherboard on the Instrument shell, transformer, mutual inductor, compositions such as transmitter and on line, motherboard are by sampling hold circuit, central processing circuit and power circuit are formed by connecting.Central processing circuit is the single-chip microcomputer by 16, the computing machine minimum unit that storer and control auxiliary circuit etc. is formed.Patch web member by on line and transformer on the instrument panel, mutual inductor is connected with motherboard, and the web member that patches on the instrument panel is connected with motherboard by on line, and transformer also interconnects with web member between mutual inductor and the motherboard.
The drawing of accompanying drawing is described as follows:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 send functional-block diagram for change of the present utility model;
Fig. 3 is for keeping the schematic diagram of sample circuit;
Fig. 4 is the schematic diagram of central processing circuit.
Below in conjunction with accompanying drawing the utility model is further described.
Housing (6) internal fixation at this transmitter motherboard (7), on the panel (1) of housing (6), be installed with and patch web member (2), transformer (3) also is installed in the housing (6), mutual inductor (4), transmitter devices such as (5), motherboard (7) is by sampling hold circuit, and central processing circuit and power circuit connect and compose.By the supply voltage of transmission circuit and the conversion of load current process voltage transformer (VT) summation current transformer, again through voltage divider, shunt and limiter enter the sampling hold circuit V that is made up of three LF398 chips
1, V
2, V
3, V
2With V
3It is the sampling hold circuit of two different ranges.The central processing system of being made up of 16 single-chip microcomputers, storer and some necessary control auxiliary circuits is a core of the present utility model, its adopts equally spaced simultaneously the electric current and voltage maintenance of sampling, the A/D conversion is carried out in the timesharing of patrolling ground, to the instantaneous voltage that records, current value, follow procedure is judged, calculates output.Become and send the result also can change the simulating signal of sending a standard to the outside through a serial communication interface output digital quantity through a high precision D/A.It all is to carry out under the commander of software cleverly in an Analysis of Nested Design that each link in the process is sent in change of the present utility model.
The utility model has made full use of the high speed of this single-chip microcomputer, high precision owing to adopted the core of 16-bit single-chip processor as transmitter, superior functions such as instruction is abundant make electric weight become to send and have realized intellectuality, have improved its measuring accuracy significantly, reliability, convenient, flexible property.The utility model is simple in structure, and cost is low, has analog quantity and digital quantity output function, can select automatically to become and send range, the ratio of performance to price to have the very strong market competitiveness.
Claims (3)
1, a kind of electric parameters transducer, it is by Instrument shell, have the instrument panel that patches web member, be placed in the motherboard on the Instrument shell, transformer, composition such as mutual inductor and on line is characterized in that described motherboard is by sampling hold circuit, and central processing circuit and power circuit are formed by connecting.
2, electric parameters transducer according to claim 1 is characterized in that central processing circuit is the single-chip microcomputer by 16, the computing machine minimum unit that storer and control, auxiliary circuit etc. are formed.
3, electric parameters transducer according to claim 2, it is characterized in that patching web member by on line and transformer on the instrument panel, mutual inductor is connected with motherboard, the web member that patches on the instrument panel is connected with motherboard by on line, transformer also interconnects with web member between mutual inductor and the motherboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92219217 CN2126437U (en) | 1992-06-27 | 1992-06-27 | Electric quantity transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92219217 CN2126437U (en) | 1992-06-27 | 1992-06-27 | Electric quantity transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2126437U true CN2126437U (en) | 1992-12-30 |
Family
ID=4962841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92219217 Granted CN2126437U (en) | 1992-06-27 | 1992-06-27 | Electric quantity transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2126437U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486722A (en) * | 2017-08-07 | 2017-12-19 | 海盐普源电力科技有限公司 | The production technology of Multifunctional power energy transmitter |
| CN107649829A (en) * | 2017-08-07 | 2018-02-02 | 海盐普源电力科技有限公司 | The processing technology of digital pick-up device |
| CN107703338A (en) * | 2017-08-07 | 2018-02-16 | 海盐普源电力科技有限公司 | The preparation method of intelligent power transmitter |
-
1992
- 1992-06-27 CN CN 92219217 patent/CN2126437U/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486722A (en) * | 2017-08-07 | 2017-12-19 | 海盐普源电力科技有限公司 | The production technology of Multifunctional power energy transmitter |
| CN107649829A (en) * | 2017-08-07 | 2018-02-02 | 海盐普源电力科技有限公司 | The processing technology of digital pick-up device |
| CN107703338A (en) * | 2017-08-07 | 2018-02-16 | 海盐普源电力科技有限公司 | The preparation method of intelligent power transmitter |
| CN107649829B (en) * | 2017-08-07 | 2019-03-05 | 海盐普源电力科技有限公司 | The processing technology of digital pick-up device |
| CN107486722B (en) * | 2017-08-07 | 2019-04-12 | 海盐普源电力科技有限公司 | The production technology of Multifunctional power energy transmitter |
| CN107703338B (en) * | 2017-08-07 | 2019-10-01 | 海盐普源电力科技有限公司 | The production method of intelligent power transmitter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |