CN2534553Y - Angle displacement measuring instrument - Google Patents
Angle displacement measuring instrument Download PDFInfo
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- CN2534553Y CN2534553Y CN 02214178 CN02214178U CN2534553Y CN 2534553 Y CN2534553 Y CN 2534553Y CN 02214178 CN02214178 CN 02214178 CN 02214178 U CN02214178 U CN 02214178U CN 2534553 Y CN2534553 Y CN 2534553Y
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Abstract
The utility model provides an angular discrepancy measuring instrument, consisting of an angular discrepancy detection circuit A, a pressure regulating circuit B, an overvoltage protection circuit C and a voltage/current conversion circuit D. The angular discrepancy detection circuit A, the pressure regulating circuit B, the overvoltage protection circuit C and the voltage/current conversion circuit D are connected in series. Compared with the prior technology, the angular discrepancy measuring instrument provided by the utility model has the advantages of reasonable design, simple structure, easy processing, small size, convenient use, high detection accuracy, good stability, safety and reliability, thus having good value of promotion and use.
Description
1, technical field
The utility model relates to a kind of equipment part, specifically a kind of angle displacement measuring instrument.
2, technical background
At present, in the blast furnace ironmaking process,, generally adopt indirect measurement method to the detection method of material level.Major equipment is synchro-transmitter and synchro-receiver.Principle is the height of material chi to be become the angular displacement of synchro-transmitter.The transmission of the electric signal that produces by angular displacement makes the synchro-receiver of Meter of Automatic Display follow transmitter and is synchronized with the movement, and so just can read the height of material level on scale.
But along with the rapid raising of automaticity, the shortcoming of selsyn displays recently.
One, the output signal of transmitter can not directly enter computing machine, makes automatic charging that certain difficulty be arranged;
Its two, when occurring collapsing material in the blast furnace ironmaking process during phenomenon, can make the selsyn angular displacement excessive asynchronous with receiver and burn out;
Its three, volume is big, clumsiness, cost height.
3, summary of the invention
It is little that the purpose of this utility model provides a kind of volume, light and flexible, the angle displacement measuring instrument that production cost is low.
The purpose of this utility model realizes in the following manner, angular displacement is rotated potentiometer slider, the output terminal resistance value is changed, the variation of resistance converts linear voltage output to by the translation circuit that with the LM317 integrated stable voltage circuit is core, in full-scale measurement range, reach the linear output of 0-10V, the voltage of 0-10V linear change is added in the electric current and voltage conversion circuit with the core of AD694, converts linear 4-20mA standard signal output current to for load, for showing or writing down use.
In core circuit, be aided with the clamping protective circuit of element compositions such as TL431 benchmark regulator block, make output clamper output protection load when transfiniting with the LM317 integrated regulator.Being added with two anti-pressure protection diode protection LM317 integrated stable voltage circuits in addition is not damaged.
This circuit adopts the 24V power supply, 40-20mA output, and the three-wire system wiring, safe and reliable anti-interference ability is strong.
Accompanying drawing 1 is the schematic block circuit diagram of angle displacement measuring instrument;
4, description of drawings
Explain below with reference to Figure of description angle displacement measuring instrument of the present utility model being done. Angle displacement measuring instrument of the present utility model, shown in accompanying drawing 1,2, its structure is to be detected by angle displacement Circuit A, regulating circuit B, overvoltage crowbar C and voltage/current conversion circuit D form, angle displacement Testing circuit A, regulating circuit B, overvoltage crowbar C and voltage/current conversion circuit D are connected on one Rise.
Circuit for detecting angular displacement A is made up of potentiometer Rw, R1, K switch, two of potentiometer RW Individual fixed contact connects 1,6 pin of K switch, and movable contact also connects 2,3 pin of K switch, 4,5 pin strings of K switch Potentiometer R1 ground connection.
Regulating circuit B is integrated by resistance R 4-R7, diode D1-D3, capacitor C 1-C5, voltage stabilizing IC circuit 1, benchmark Voltage stabilizing module IC2 form, and resistance R 4, capacitor C 1, C2 also connect integrated regulator Between 1 pin and ground wire of IC1, diode D2 also connects between 1,2 pin of integrated regulator IC1 two utmost points Pipe D3, resistance R 5 also connects between 2,3 pin of integrated regulator IC1, and capacitor C 3 also connects the voltage stabilizing integrated electric Between 3 pin and ground wire of road IC1,2 pin that benchmark Voltage stabilizing module IC2 is serially connected in integrated regulator IC1 with 3 pin of voltage/current modular converter IC3, resistance R 6, R7, capacitor C 4, C5 connect respectively benchmark voltage stabilizing mould Between 1,2 pin and ground wire of piece IC2.
Overvoltage crowbar C is made up of resistance R 2, R3, benchmark Voltage stabilizing module IC4, benchmark voltage stabilizing mould 3 pin of the 1 foot control K of piece IC4,2 pin ground connection, 3 pin series resistor R2 meet 2 of benchmark Voltage stabilizing module IC2 Pin, resistance R 3 are connected between 3 pin and ground wire of benchmark Voltage stabilizing module.
Voltage/current conversion circuit D is by voltage/current modular converter IC3 capacitor C 6, resistance R 8, R9 Form, resistance R 8, R9 are serially connected between 13 pin and ground wire of voltage/current modular converter IC3, electric capacity C6 is connected between 13 pin and ground wire of voltage/current modular converter IC3, voltage/current modular converter IC3's 1,2 pin and connecing, 5,9 pin ground connection, 7 pin are connected between resistance R 8, the R9, and 11 pin are linear current output End.
5, embodiment
Its processing and fabricating of angle displacement measuring instrument of the present utility model is very simple and convenient, and processing and fabricating gets final product shown in the by specification accompanying drawing, and the electronic devices and components of circuit are the standard electronic element.
Angle displacement detector of the present utility model has following advantage
1, output international standard 4-20mA signal or 1-5V signal (user is optional), can be directly and microcomputer interface supporting, also can join DDZ-3 or DDZ-s Displaying Meter.
2, good overload and defencive function are arranged, can 360 degree rotation and not damaging;
3, pull the full scale regulating power on a large scale zero point.
4, distinctive upper limit clamper function can make the output of upper limit clamper, the record and the display device trouble free service of protection load.
5, cost is low, and the 24V power supply is safe and reliable.
Using method
This angular instrument determines the position of K switch in addition must adorning, and in the panel standard.Output ascending (4-20mA angle displacement measuring instrument) switch direction this moment that turns clockwise is designated as " just ", is rotated counterclockwise output ascending (4-20mA angle displacement measuring instrument), and this moment, switch direction standard was " bearing ".
At first, the switch of angular instrument is got to corresponding position according to the direction of tested material chi angular displacement.
Its two, arrange mark according to terminal, connections+24V power supply, ground wire and signal are exported three wiring.
Tested material chi adjusted to zero align zero point fixingly, and regulate zero potentiometer, make electric current output be slightly larger than 4mA with angular instrument.To expect that chi adjusts to full scale, and regulate the full scale potentiometer and make and be output as 20mA.Repeat three, four till satisfaction accurately.
Angle displacement measuring instrument of the present utility model is compared with existing technology, and has reasonable in design, structure Simply, be easy to processing, volume is little, easy to use, accuracy of detection is high, good stability, safe and reliable Etc. characteristics, thereby, have good value for applications.
Except the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (5)
1. angle displacement measuring instrument; comprise that circuit for detecting angular displacement A, regulating circuit B, overvoltage crowbar C and voltage D form, and is characterized in that circuit for detecting angular displacement A, regulating circuit B, overvoltage crowbar C and voltage D are cascaded.
2. angle displacement measuring instrument according to claim 1, it is characterized in that circuit for detecting angular displacement A is made up of potentiometer Rw, R1, K switch, two fixed contacts of potentiometer RW connect 1,6 pin of K switch, moving contact also connects 2,3 pin of K switch, 4,5 pin string potentiometer R1 ground connection of K switch.
3. angle displacement measuring instrument according to claim 1, it is characterized in that regulating circuit B is by resistance R 4-R7, diode D1-D3, capacitor C 1-C5, integrated regulator IC1, benchmark Voltage stabilizing module IC2 forms, resistance R 4, capacitor C 1, C2 also connects between 1 pin and ground wire of integrated regulator IC1, diode D2 also meets 1 of integrated regulator IC1, between 2 pin, diode D3, resistance R 5 also meets 2 of integrated regulator IC1, between 3 pin, capacitor C 3 also connects between 3 pin and ground wire of integrated regulator IC1, benchmark Voltage stabilizing module IC2 is serially connected in 2 pin of integrated regulator IC1 and 3 pin of voltage/current modular converter IC3, resistance R 6, R7, capacitor C 4, C5 meets 1 of benchmark Voltage stabilizing module IC2 respectively, between 2 pin and the ground wire.
4. angle displacement measuring instrument according to claim 1; it is characterized in that overvoltage crowbar C is made up of resistance R 2, R3, benchmark Voltage stabilizing module IC4; 3 pin of the 1 foot control K of benchmark Voltage stabilizing module IC4; 2 pin ground connection; 3 pin series resistor R2 connect 2 pin of benchmark Voltage stabilizing module IC2, and resistance R 3 is connected between 3 pin and ground wire of benchmark Voltage stabilizing module.
5. angle displacement measuring instrument according to claim 1, it is characterized in that voltage D is made up of voltage/current modular converter IC3 capacitor C 6, resistance R 8, R9, resistance R 8, R9 are serially connected between 13 pin and ground wire of voltage/current modular converter IC3, capacitor C 6 is connected between 13 pin and ground wire of voltage/current modular converter IC3,1,2 pin of voltage/current modular converter IC3 also connect, 5,9 pin ground connection, 7 pin are connected between resistance R 8, the R9, and 11 pin are the linear current output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02214178 CN2534553Y (en) | 2002-04-25 | 2002-04-25 | Angle displacement measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02214178 CN2534553Y (en) | 2002-04-25 | 2002-04-25 | Angle displacement measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2534553Y true CN2534553Y (en) | 2003-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02214178 Expired - Fee Related CN2534553Y (en) | 2002-04-25 | 2002-04-25 | Angle displacement measuring instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN2534553Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398988C (en) * | 2004-04-12 | 2008-07-02 | 株式会社三丰 | Sensor signalling circuit and measuring instrument using it |
| CN100425950C (en) * | 2006-01-19 | 2008-10-15 | 连云港杰瑞电子有限公司 | Self-angle-regulator/rotary transformer analog DC converting method |
| CN105318833A (en) * | 2015-12-05 | 2016-02-10 | 重庆镭宝激光智能机器人制造有限公司 | Rotation angle detection current feedback device for welding robot |
| CN106290255A (en) * | 2016-10-26 | 2017-01-04 | 成都光明光电股份有限公司 | The method of testing of infrarefraction rate in the middle part of 1700nm～2500nm |
-
2002
- 2002-04-25 CN CN 02214178 patent/CN2534553Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398988C (en) * | 2004-04-12 | 2008-07-02 | 株式会社三丰 | Sensor signalling circuit and measuring instrument using it |
| CN100425950C (en) * | 2006-01-19 | 2008-10-15 | 连云港杰瑞电子有限公司 | Self-angle-regulator/rotary transformer analog DC converting method |
| CN105318833A (en) * | 2015-12-05 | 2016-02-10 | 重庆镭宝激光智能机器人制造有限公司 | Rotation angle detection current feedback device for welding robot |
| CN106290255A (en) * | 2016-10-26 | 2017-01-04 | 成都光明光电股份有限公司 | The method of testing of infrarefraction rate in the middle part of 1700nm～2500nm |
| CN106290255B (en) * | 2016-10-26 | 2019-07-30 | 成都光明光电股份有限公司 | The test method of infrarefraction rate in the middle part of 1700nm~2500nm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |