CN105510635A - Helicopter tachometer check device - Google Patents
Helicopter tachometer check device Download PDFInfo
- Publication number
- CN105510635A CN105510635A CN201510988277.4A CN201510988277A CN105510635A CN 105510635 A CN105510635 A CN 105510635A CN 201510988277 A CN201510988277 A CN 201510988277A CN 105510635 A CN105510635 A CN 105510635A
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- CN
- China
- Prior art keywords
- circuit
- helicopter
- electrically connected
- tachometer
- tachometer gage
- Prior art date
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- 238000012795 verification Methods 0.000 claims description 10
- 230000003321 amplification Effects 0.000 claims description 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 238000012360 testing method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
- G01P21/02—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention relates to a helicopter tachometer check device. At present, aeronautic tachometers are checked through adopting tachometer driving sources, and as a result, problems of large size, large noises and high power consumption can be brought about, digital tachometers cannot be verified. The helicopter tachometer check device of the invention comprises a system chassis (1); a micro controller (2) is arranged in the system chassis; the micro controller is electrically connected with a signal conversion device (3), a display circuit (4), a keyboard circuit (5), an upper computer interface circuit (6) and a standard tachometer (7); the signal conversion device is electrically connected with a signal channel circuit A (8) and a signal channel circuit B (9); the signal channel circuit A and the signal channel circuit B are electrically connected with a check signal output circuit (10); and the check signal output circuit is electrically connected with the standard tachometer and a tachometer to be checked (11). The helicopter tachometer check device of the invention is used for checking helicopter tachometers.
Description
technical field:
the present invention relates to a kind of civilian helicopter testing equipment, particularly a kind of helicopter tachometer gage calibration equipment.
background technology:
on the panel board of twin-engined helicopter driving cabin, the instrument of a lot of display helicopter flight data is housed, for the normal flight of helicopter provides technical guarantee.The wherein indicating value of two engine free secondary speed tables and a Revolving-wing Rotation Speed Meter, can directly monitor helicopter flight state and power performance, most important for safe, the reliable flight of helicopter.In helicopter manufacture with in repairing, to strict test and calibration be carried out to the technical feature of these rotating speed instrument and class of accuracy, make it reach relevant technical indicator.Mostly adopt now tachometer gage drive source mode to verify tachometer gage, namely use transducer drive motor, make motor export predetermined rotating speed, drive speed probe to make analog speedometer work.Tachometer gage drive source exists that volume is large, noise is large, power consumption is large, the shortcomings such as test efficiency is low, and cannot carry out the verification of digital tachometer.
summary of the invention:
the object of this invention is to provide a kind of helicopter tachometer gage calibration equipment.
above-mentioned object is realized by following technical scheme:
a kind of helicopter tachometer gage calibration equipment, its composition comprises: system chassis, microcontroller is had in described system chassis, supply unit, described microcontroller respectively with chromacoder, display circuit, keyboard circuit, host computer interface circuit, rated rotational frequency table is electrically connected, described chromacoder is electrically connected with signal path circuitry one and signal path circuitry two respectively, described signal path circuitry one and described signal path circuitry two are electrically connected with checking signal output circuit, described checking signal output circuit respectively with rated rotational frequency table, tachometer gage electrical connection to be verified.
described helicopter tachometer gage calibration equipment, described microcontroller comprises single-chip microcomputer, timer, Power supply detector, and the model of described single-chip microcomputer is TMS320F2812PGFA.
described helicopter tachometer gage calibration equipment, described chromacoder comprises multiplying-type digital to analog converter, described multiplying-type digital to analog converter is electrically connected with wave filter, Reference waveform generator respectively, described Reference waveform generator is electrically connected with address control circuit, and the model of described digital to analog converter is AD7845.
described helicopter tachometer gage calibration equipment, described checking signal output circuit comprises verification mode commutation circuit, described verification mode commutation circuit is electrically connected with current amplification circuit, described current amplification circuit is electrically connected with spacing output circuit, described current amplification circuit adopts thick film assembly, and output current is not less than 3A.
described helicopter tachometer gage calibration equipment, described system chassis adopts aluminum section bar frame cabinet.
beneficial effect:
1. the present invention is with introducing intelligentized design and digital synthesis technology, produces the tachometer gage checking signal that amplitude, a frequency can accurately regulate, and replaces tachometer gage drive source, verifies the tachometer gage of helicopter.
output unit of the present invention adopts thick film electrical component stream amplifier driving isolation output circuit, and output signal end and system electrical are isolated, and provides signal, its load capacity and antijamming capability are greatly enhanced in the mode on completely floating ground for tachometer gage to be verified.
man-machine interface of the present invention adopts liquid crystal display, touch key, realize verification mode to switch (according to the form of tachometer gage to be verified, select analog/digital), state parameter setting, output amplitude, frequency step regulate and the function such as rated rotational frequency value display, information is directly perceived, abundant, and setting operation is flexible, simple and direct.
the communication interface of the present invention and host computer, the transmitting measured values of the test data of tachometer gage to be verified and rated rotational frequency table can be replaced manually carrying out error op, error statistics and fair curve in System Computer, and the verification conclusion (or claim calibration certificate) of papery is exported by the printing device of System Computer, the advantage such as there is conveniently, accurate, objective, reliable, efficient.
the present invention adopts aluminum section bar frame cabinet, and only there are two pieces of PCB inside, and lightweight is little, easy to carry, and electromagnetism interference performance is good, is specially adapted to verify helicopter tachometer gage in helicopter manufacture or maintenance sites.
accompanying drawing illustrates:
accompanying drawing 1 is structural representation of the present invention.
accompanying drawing 2 is circuit block diagrams of chromacoder in accompanying drawing 1 in accompanying drawing 1.
accompanying drawing 3 is circuit diagrams of microcontroller in accompanying drawing 1.
accompanying drawing 4 is circuit diagrams of multiplying-type d convertor circuit in accompanying drawing 1.
accompanying drawing 5 verifies signal output apparatus circuit block diagram in accompanying drawing 1.
embodiment:
embodiment 1:
a kind of helicopter tachometer gage calibration equipment, its composition comprises: system chassis 1, microcontroller 2 is had in described system chassis, supply unit, described microcontroller respectively with chromacoder 3, display circuit 4 keyboard circuit 5, host computer interface circuit 6, rated rotational frequency table 7 is electrically connected, described chromacoder is electrically connected with signal path circuitry 1 and signal path circuitry 29 respectively, described signal path circuitry one and described signal path circuitry two are electrically connected with checking signal output circuit 10, described checking signal output circuit respectively with rated rotational frequency table, tachometer gage 11 to be verified is electrically connected.
embodiment 2:
helicopter tachometer gage calibration equipment according to embodiment 1, described microcontroller comprises single-chip microcomputer, timer, Power supply detector, and the model of described single-chip microcomputer is TMS320F2812PGFA.
embodiment 3:
helicopter tachometer gage calibration equipment according to embodiment 1 or 2, described chromacoder comprises multiplying-type digital to analog converter 16, described multiplying-type digital to analog converter is electrically connected with wave filter 17, Reference waveform generator 18 respectively, and described Reference waveform generator is electrically connected with address control circuit 19.The model of described digital to analog converter is AD7845.
embodiment 4:
helicopter tachometer gage calibration equipment according to embodiment 1 or 2 or 3, described checking signal output circuit comprises verification mode commutation circuit 11, described verification mode commutation circuit is electrically connected with current amplification circuit 12, described current amplification circuit is electrically connected with spacing output circuit 13, described current amplification circuit adopts thick film assembly, and output current is not less than 3A.
embodiment 5:
helicopter tachometer gage calibration equipment according to embodiment 1 or 2 or 3 or 4, described signal path circuitry one is analog channel, the output of analog speedometer checking signal can be realized, described signal path circuitry two is digital channels, can realize the synthesis of digital tachometer checking signal.
embodiment 6:
helicopter tachometer gage calibration equipment according to embodiment 1 or 2 or 3 or 4 or 5, described system chassis adopts aluminum section bar frame cabinet.
embodiment 7:
the method of calibration of the helicopter tachometer gage calibration equipment according to embodiment 1 or 2 or 3 or 4 or 5 or 6: 1) be energized by calibration equipment, with the touch key of man-machine interface, according to tachometer gage characteristic to be verified, selects working method: analog or digital; State parameter is set: output amplitude, output frequency, step-by-step adjustment fineness etc.; Connect tachometer gage to be verified, verify.2) after having verified, with communication interface with pc connected system machine and printer, press " error op " key, computing, statistics and fair curve can be carried out to the error of the transmitting measured values of the test data of tachometer gage to be verified and rated rotational frequency table, and export verification conclusion or the calibration certificate of papery by printing device.
Claims (5)
1. a helicopter tachometer gage calibration equipment, its composition comprises: system chassis, it is characterized in that: in described system chassis, have microcontroller, supply unit, described microcontroller respectively with chromacoder, display circuit, keyboard circuit, host computer interface circuit, rated rotational frequency table is electrically connected, described chromacoder is electrically connected with signal path circuitry one and signal path circuitry two respectively, described signal path circuitry one and described signal path circuitry two are electrically connected with checking signal output circuit, described checking signal output circuit respectively with described rated rotational frequency table, tachometer gage electrical connection to be verified.
2. helicopter tachometer gage calibration equipment according to claim 1, is characterized in that: described microcontroller comprises single-chip microcomputer, timer, Power supply detector, and the model of described single-chip microcomputer is TMS320F2812PGFA.
3. helicopter tachometer gage calibration equipment according to claim 1, it is characterized in that: described chromacoder comprises multiplying-type digital to analog converter, described multiplying-type digital to analog converter is electrically connected with wave filter, Reference waveform generator respectively, described Reference waveform generator is electrically connected with address control circuit, and the model of described digital to analog converter is AD7845.
4. helicopter tachometer gage calibration equipment according to claim 1, it is characterized in that: described checking signal output circuit comprises verification mode commutation circuit, described verification mode commutation circuit is electrically connected with current amplification circuit, described current amplification circuit is electrically connected with spacing output circuit, described current amplification circuit adopts thick film assembly, and output current is not less than 3A.
5. helicopter tachometer gage calibration equipment according to claim 1 and 2, is characterized in that: described system chassis adopts aluminum section bar frame cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510988277.4A CN105510635A (en) | 2015-12-26 | 2015-12-26 | Helicopter tachometer check device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510988277.4A CN105510635A (en) | 2015-12-26 | 2015-12-26 | Helicopter tachometer check device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105510635A true CN105510635A (en) | 2016-04-20 |
Family
ID=55718759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510988277.4A Pending CN105510635A (en) | 2015-12-26 | 2015-12-26 | Helicopter tachometer check device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105510635A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201035403Y (en) * | 2006-06-16 | 2008-03-12 | 荆州市明德科技有限公司 | Portable synthetic parameter checking device for petroleum, chemical automation system |
| CN201215563Y (en) * | 2008-07-11 | 2009-04-01 | 芜湖天宇科技开发有限公司 | Electronic vehicle speedometer and tachometer check instrument for automobile |
| CN103777041A (en) * | 2014-02-11 | 2014-05-07 | 重庆建设工业(集团)有限责任公司 | Calibration device and calibration method for torque and rotation speed measuring instrument |
| CN203772297U (en) * | 2013-11-18 | 2014-08-13 | 王纪婵 | Field gate array-based motormeter calibration instrument system and circuit |
| CN104090128A (en) * | 2014-07-11 | 2014-10-08 | 上海工程技术大学 | High precision calibrating device for gasoline engine tachometer calibrator |
| CN205301364U (en) * | 2015-12-26 | 2016-06-08 | 哈尔滨佳云科技有限公司 | Helicopter speedometer calibration equipment |
| CN205300843U (en) * | 2015-12-26 | 2016-06-08 | 哈尔滨佳云科技有限公司 | Civilian helicopter moves loading test device |
-
2015
- 2015-12-26 CN CN201510988277.4A patent/CN105510635A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201035403Y (en) * | 2006-06-16 | 2008-03-12 | 荆州市明德科技有限公司 | Portable synthetic parameter checking device for petroleum, chemical automation system |
| CN201215563Y (en) * | 2008-07-11 | 2009-04-01 | 芜湖天宇科技开发有限公司 | Electronic vehicle speedometer and tachometer check instrument for automobile |
| CN203772297U (en) * | 2013-11-18 | 2014-08-13 | 王纪婵 | Field gate array-based motormeter calibration instrument system and circuit |
| CN103777041A (en) * | 2014-02-11 | 2014-05-07 | 重庆建设工业(集团)有限责任公司 | Calibration device and calibration method for torque and rotation speed measuring instrument |
| CN104090128A (en) * | 2014-07-11 | 2014-10-08 | 上海工程技术大学 | High precision calibrating device for gasoline engine tachometer calibrator |
| CN205301364U (en) * | 2015-12-26 | 2016-06-08 | 哈尔滨佳云科技有限公司 | Helicopter speedometer calibration equipment |
| CN205300843U (en) * | 2015-12-26 | 2016-06-08 | 哈尔滨佳云科技有限公司 | Civilian helicopter moves loading test device |
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