CN201653590U - Electric contact thermometer contact testing and automatic sampling device - Google Patents
Electric contact thermometer contact testing and automatic sampling device Download PDFInfo
- Publication number
- CN201653590U CN201653590U CN2010201357206U CN201020135720U CN201653590U CN 201653590 U CN201653590 U CN 201653590U CN 2010201357206 U CN2010201357206 U CN 2010201357206U CN 201020135720 U CN201020135720 U CN 201020135720U CN 201653590 U CN201653590 U CN 201653590U
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- electric contact
- temperature
- contact
- thermometer
- thermostat
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Abstract
The utility model relates to an electric contact thermometer contact testing and automatic sampling device, wherein an electric contact thermometer is sequentially connected with an automatic temperature sampling module, a computer and a thermostat by an electric contact testing wire to form a closed circuit; and a thermostatic equipment temperature micromatic setting is connected in parallel between the computer and the thermostat to lead the computer to be also connected with the thermostat and the thermostatic equipment temperature micromatic setting by an electric contact testing wire to form a closed circuit. The electric contact thermometer contact testing and automatic sampling device has the advantages of being capable of gradually and automatically sampling contact temperature, and conducting multiple times of sampling at one point, and having accurate testing and small sampling error.
Description
Technical field: the utility model genus is applicable to the judgement of charged contact temperature meter contact action such as various pressure-type thermometers and bimetallic system cell and the automatic sampling apparatus technical field of structures of operating temperature value.
Background technology: pressure-type thermometer, bimetallic system cell are used very extensive in electric system, pressure-type thermometer is mainly used in the measurement of substation transformer, primary equipment temperature such as high anti-, connection point on-off is mainly used to control actions such as starting fan, fan stop, high temperature alarm, overtemperature tripping operation, and is significant to the safe operation of transformer station.Therefore, the docking point action must be accomplished accurate calibrating.Manually calibrating mode of tradition contact is to read the standard thermometer displays temperature again after determining the contact action, so time delay that exists temperature to read, because temperature variation is very fast in the contact verification process, the temperature drift that manual method reads or on the low side in standard temperature, the temperature value that can not truly reflect the contact action, this judgement to verification result exerts a certain influence, and is unfavorable for the safe operation of electrical network.
Electric contact thermometer node test and automatic sampling apparatus realize that test, standard temperature sampling moment finishes, and have significantly reduced from contact to move the time that temperature reads, and have guaranteed the driven synchronism of accomplishing sampling.Calibrating arrives first earlier and adopts when can realize 8 electric contact thermometers, carries out repeated sampling for an operating point, and each sampled result is compared, and preserves data when stablizing when sample temperature reaches.
Summary of the invention: the purpose of this utility model is: cooperate the electric contact " connection ", " disconnection " operating temperature of electric contact thermometers such as calibrating pressure-type thermometer and bimetallic system cell and the necessary instrument that designs.
The purpose of this utility model is achieved by the following scheme:
Electric contact thermometer node test and automatic sampling apparatus is characterized in that, the utility model connects into a closed-loop path with the automatic sampling module of temperature, computing machine, thermostat by the electric contact p-wire in regular turn with electric contact thermometer; And between computing machine and thermostat, be parallel with thermostatic equipment fine tune temperature device, make computing machine and thermostat and thermostatic equipment fine tune temperature device also connect into a closed-loop path by the electric contact p-wire.
The necessary instrument that cooperates the electric contact " connection ", " disconnection " temperature of calibrating pressure-type thermometer and design.The automatic sampling of temperature value when being applicable to the test of electric contact on/off of various pressure-type thermometers and bimetallic system cell and node action.It is characterized in that: possess that combined type calibrating, on/off test, temperature are sampled automatically, the electric contact deviation is adjusted, sampling (8 passages of can sampling at most) in batches, can select manual sample mode for use.
Automatically sample circuit is formed and comprised: D1 is the AT98C2051 single-chip microcomputer, in have scanning and communication program; D4 is MAX232, is the RS232 communication IC; D2, D3 are 74HC245, are eight road bi-directional transceivers; B1 changes DC 5V power module for AC 220V.
The automatic sampling module of the utility model electric contact is the electric contact " connection " that cooperates the calibrating pressure-type thermometer, " disconnection " temperature and the necessary instrument that designs.It is connected with microcomputer by the RS232 communication interface, Single-chip Controlling, by " connection ", the scan round of " disconnection " level to 10 pressure-type thermometer electrical contact switch connecting, capture the variation at once of each electric contact " connection ", " disconnection " state, send computing machine to, the variation of computer program basis " connection ", " disconnection " state is standard for manual sampling thermometer temperature immediately, thereby reaches the purpose of measuring and writing down electric contact " connection ", " disconnection " temperature.
The beneficial effects of the utility model are that this device has contact temperature sampling automatically one by one, any repeatedly samples, tests the advantage accurate, that sampling error is little.
Further set forth the utility model content below in conjunction with drawings and Examples.
Description of drawings: Fig. 1 is the utility model sample circuit structural principle block diagram;
Fig. 2 is the utility model apparatus structure theory diagram;
Fig. 3 is the utility model device workflow diagram.
Embodiment:
Electric contact thermometer node test and automatic sampling apparatus is characterized in that, the utility model connects into a closed-loop path with the automatic sampling module of temperature, computing machine, thermostat by the electric contact p-wire in regular turn with electric contact thermometer; And between computing machine and thermostat, be parallel with thermostatic equipment fine tune temperature device, make computing machine and thermostat and thermostatic equipment fine tune temperature device also connect into a closed-loop path by the electric contact p-wire.
As Fig. 1, the utility model circuit is formed and to be comprised: D1 is the AT98C2051 single-chip microcomputer, in have scanning and communication program.D4 is MAX232, is the RS232 communication IC.D2, D3 are 74HC245, are eight road bi-directional transceivers.B1 changes DC 5V power module for AC 220V.
In the circuit, the B1 power module provides the power supply of system with 220V/50～60Hz AC power conversion back output 5V DC voltage; J3 is the RS232 socket, connects the serial ports of microcomputer, and D3 is used to exchange the data between microcomputer and the single-chip microcomputer D1, is connected to P3.0, the P3.1 of D1.The output terminal of D2, D3 eight road bi-directional transceivers is connected to the P1.0～P1.7 of D1 single-chip microcomputer and P3.2, P3.3 interface, and 10 input ends of D2, D3 are connected to electrical contact switch.S1～S10 is the electrical contact switch of external pressure-type thermometer, the 5V power supply by 10 groups of 2.2K current-limiting resistances and luminotron to the power supply of electrical contact switch one end, obtaining high and low level, and at instrument panel indication " connection " luminotron " bright ".
Microcomputer reads the data of single-chip microcomputer P1 and P3.2, P3.3 register in Fixed Time Interval by the RS232 communication interface, when all positions of P1 and P3.2, P3. register all are " height ", illustrate that electrical contact switch all disconnects, when a certain position is " low ", the switch connection of this correspondence is described." electric contact thermometer automatic Verification program " in the microcomputer starts the sampling of standard platinum resistance thermometer being measured temperature, and this thermograph is preserved, and is simultaneously displayed on this bit switch " connection " temperature position in the runnable interface.
As Fig. 2, electric contact thermometer node test and automatic sampling apparatus mainly comprise automatic sampling module, thermostat fine tune temperature device two parts.Thermostatic equipment fine tune temperature device mainly act as: when the thermostatic equipment temperature reaches calibrating point temperature, regulate thermostatic equipment power by thermostatic equipment fine tune temperature device, to reach the rapid effect that raises or reduce of thermostatic equipment internal temperature within the specific limits, seek contact switch operating temperature point.Automatically sampling module act as: when adjustment to the contact switch actuating range, the contact open initiating is done, automatically sampling module capturing motion signal and transmitting.
As Fig. 3, electric contact thermometer node test and automatic sampling apparatus workflow are: in the verification process, after temperature reaches operating point temperature is set, the electric contact action, sample to operating temperature this moment, video data analyzed, and selected to preserve data or abandon according to analysis result.When selecting to preserve data, then finish this contact temperature calibrating, produce form and printing automatically; After selection is abandoned, then this contact is examined and determine again.
Claims (1)
1. test of electric contact thermometer contact and automatic sampling apparatus is characterized in that electric contact thermometer connects into a closed-loop path with the automatic sampling module of temperature, computing machine, thermostat by the electric contact p-wire in regular turn; Between computing machine and thermostat, be parallel with thermostatic equipment fine tune temperature device, make computing machine and thermostat and thermostatic equipment fine tune temperature device also connect into a closed-loop path by the electric contact p-wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201357206U CN201653590U (en) | 2010-03-19 | 2010-03-19 | Electric contact thermometer contact testing and automatic sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201357206U CN201653590U (en) | 2010-03-19 | 2010-03-19 | Electric contact thermometer contact testing and automatic sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201653590U true CN201653590U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201357206U Expired - Lifetime CN201653590U (en) | 2010-03-19 | 2010-03-19 | Electric contact thermometer contact testing and automatic sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201653590U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207414A (en) * | 2011-03-19 | 2011-10-05 | 辽宁省电力有限公司葫芦岛供电公司 | Motoring device for Anhui thermometer |
| CN109708780A (en) * | 2018-12-24 | 2019-05-03 | 长沙丰灼通讯科技有限公司 | A kind of high-precision fiducial temperature acquisition device and its method |
-
2010
- 2010-03-19 CN CN2010201357206U patent/CN201653590U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207414A (en) * | 2011-03-19 | 2011-10-05 | 辽宁省电力有限公司葫芦岛供电公司 | Motoring device for Anhui thermometer |
| CN109708780A (en) * | 2018-12-24 | 2019-05-03 | 长沙丰灼通讯科技有限公司 | A kind of high-precision fiducial temperature acquisition device and its method |
| CN109708780B (en) * | 2018-12-24 | 2020-09-29 | 长沙丰灼通讯科技有限公司 | High-precision reference temperature acquisition device and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
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| CX01 | Expiry of patent term |