CN104251918A - Intelligent measurer used for measuring aeroengine rotating speed - Google Patents
Intelligent measurer used for measuring aeroengine rotating speed Download PDFInfo
- Publication number
- CN104251918A CN104251918A CN201310254996.4A CN201310254996A CN104251918A CN 104251918 A CN104251918 A CN 104251918A CN 201310254996 A CN201310254996 A CN 201310254996A CN 104251918 A CN104251918 A CN 104251918A
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- resistance
- amplifier
- electric capacity
- chip microcomputer
- rotating speed
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Abstract
The invention discloses an intelligent measurer used for measuring an aeroengine rotating speed. The intelligent measurer comprises a self-check circuit, a rotating speed sensor, a first single-chip microcomputer, a second single-chip microcomputer, a first capacitor, a second capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first comparator and a second comparator. The intelligent measurer used for measuring the aeroengine rotating speed converts a rotating speed simulation signal into a high-precision digital signal and mitigates signal processing tasks for a central processing unit of a digital electronic system, and thereby relatively high timeliness and precision of the intelligent measurer are realized.
Description
Technical field
The present invention relates to a kind of measuring equipment for measuring aeromotor, particularly relating to a kind of Intelligent testing measuring device for measuring aeromotor rotating speed.
Background technology
Engine is one of equipment of various air material most critical, function is started to provide power, ensure that air material can aloft normal flight, and the digital electronic control of aeromotor is the developing direction of advanced propulsion system, the input signal of sensor is simulating signal by measuring appliance now, central processing unit by a large amount of resource consumptions in data processing, redundancy management and fault diagnosis, the processing speed of central processing unit is slower, ageing not high, measuring accuracy is not high, and the advantage of digital control system can not be embodied.
Summary of the invention
Object of the present invention is just to provide a kind of Intelligent testing measuring device with the aeromotor rotating speed of real-time high-precision to solve the problem.
The present invention is achieved through the following technical solutions above-mentioned purpose:
For measuring an Intelligent testing measuring device for aeromotor rotating speed, comprise self-checking circuit, speed probe, first single-chip microcomputer, second singlechip, first electric capacity, second electric capacity, first resistance, second resistance, 3rd resistance, 4th resistance, 5th resistance, 6th resistance, 7th resistance, 8th resistance, first comparer and the second comparer, described self-checking circuit is connected with the Chang Kaiduan of described first single-chip microcomputer, first output terminal of described speed probe is connected with the normal-closed end of described first single-chip microcomputer, the second output terminal of described speed probe respectively with the first end of described first electric capacity, the first end of described first resistance, the first end of described second electric capacity, the positive pole of described first diode, the negative pole of described second diode, the first end of described 4th resistance, ground connection after the first end of described 6th resistance is connected with the cathode output end of described second comparer, the comparison input end of described first single-chip microcomputer respectively with the second end of described first electric capacity, second end of described first resistance is connected with described second resistance first end, the second end of described second resistance respectively with the second end of described second electric capacity, the negative pole of described first diode, the positive pole of described second diode is connected with the first end of described 3rd resistance, second end of described 3rd resistance is connected with the inverting input of described first comparer and the first end of described 5th resistance respectively, second end of described 4th resistance is connected with the normal phase input end of described first comparer, the normal phase input end of described second comparer is connected with the second end of described 5th resistance and the signal output part of described first comparer respectively, the reversed-phase output of described second comparer is connected with the second end of described 6th resistance, the first end of described 7th resistance is external voltage end, the first end of described 7th resistance is connected with the cathode output end of described second comparer, the signal input part of described second singlechip is connected with the second end of described 7th resistance and the signal output part of described second comparer respectively, the level output end of described second singlechip is connected with described 8th resistance first end, second end of described 8th resistance is connected with the signal input part of described first single-chip microcomputer.
Beneficial effect of the present invention is:
Rotating speed analog-signal transitions is become high-precision digital signal for the Intelligent testing measuring device measuring aeromotor rotating speed by the present invention, alleviate the signal processing tasks of the CPU (central processing unit) of digital electric subsystem, thus make Intelligent testing measuring device reach higher ageing and precision.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the Intelligent testing measuring device for measuring aeromotor rotating speed of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, the present invention, for measuring the Intelligent testing measuring device of aeromotor rotating speed, comprises self-checking circuit, speed probe, first single-chip microcomputer IC1, second singlechip IC2, first electric capacity C1, second electric capacity C2, first resistance R1, second resistance R2, 3rd resistance R3, 4th resistance R4, 5th resistance R5, 6th resistance R6, 7th resistance R7, 8th resistance R8, first comparer U1 and the second comparer U2, self-checking circuit is connected with the Chang Kaiduan of the first single-chip microcomputer IC1, first output terminal of speed probe is connected with the normal-closed end of the first single-chip microcomputer IC1, the second output terminal of speed probe respectively with the first end of the first electric capacity C1, the first end of the first resistance R1, the first end of the second electric capacity C2, the positive pole of the first diode D1, the negative pole of the second diode D2, the first end of the 4th resistance R4, ground connection after the first end of the 6th resistance R6 is connected with the cathode output end of the second comparer U2, the comparison input end of the first single-chip microcomputer IC1 respectively with second end of the first electric capacity C1, second end of the first resistance R1 is connected with the second resistance R2 first end, second end of the second resistance R2 respectively with second end of the second electric capacity C2, the negative pole of the first diode D1, the positive pole of the second diode D2 is connected with the first end of the 3rd resistance R3, second end of the 3rd resistance R3 is connected with the inverting input of the first comparer U1 and the first end of the 5th resistance R5 respectively, second end of the 4th resistance R4 is connected with the normal phase input end of the first comparer U1, the normal phase input end of the second comparer U2 is connected with second end of the 5th resistance R5 and the signal output part of the first comparer U1 respectively, the reversed-phase output of the second comparer U2 is connected with second end of the 6th resistance R6, the first end of the 7th resistance R7 is external voltage end, the first end of the 7th resistance R7 is connected with the cathode output end of the second comparer U2, the signal input part of second singlechip IC2 is connected with second end of the 7th resistance R7 and the signal output part of the second comparer U2 respectively, the level output end of second singlechip IC2 is connected with the 8th resistance R8 first end, second end of the 8th resistance R8 is connected with the signal input part of the first single-chip microcomputer.
Use the principle of work of a kind of Intelligent testing measuring device for measuring aeromotor rotating speed of the present invention as follows:
Intelligent testing measuring device has self-checking function, electronic analog swtich selects the first single-chip microcomputer IC1, when the level output pin of second singlechip IC2 exports high level, power-on self-test circuit ON, when second singlechip IC2 output low level, tach signal is introduced into the signal conditioning circuit of Intelligent testing measuring device, the signal first coating-forming voltage frequency signal on the first resistance R1 and the first electric capacity C2 that speed probe exports, by the second resistance R2, the low-pass filter circuit that 3rd resistance R3 and the second electric capacity C2 is formed, low frequency signal is only allowed to pass through, the output voltage of speed probe is clamped down within the specific limits by the diode of two reverse parallel connections, bipolar square wave signal enters the second comparer U2, time lag comparator circuit is formed by the second comparer U2, what prevent waveform shakiness from causing is more inaccurate.After comparator circuit, tach signal becomes unipolarity square-wave signal, and is transported to second singlechip IC2 and carries out meter frequently.
Claims (1)
1., for measuring an Intelligent testing measuring device for aeromotor rotating speed, it is characterized in that: comprise self-checking circuit, speed probe, first single-chip microcomputer, second singlechip, first electric capacity, second electric capacity, first resistance, second resistance, 3rd resistance, 4th resistance, 5th resistance, 6th resistance, 7th resistance, 8th resistance, first amplifier and the second amplifier, described self-checking circuit is connected with the Chang Kaiduan of described first single-chip microcomputer, first output terminal of described speed probe is connected with the normal-closed end of described first single-chip microcomputer, the second output terminal of described speed probe respectively with the first end of described first electric capacity, the first end of described first resistance, the first end of described second electric capacity, the positive pole of described first diode, the negative pole of described second diode, the first end of described 4th resistance, ground connection after the first end of described 6th resistance is connected with the cathode output end of described second amplifier, the comparison input end of described first single-chip microcomputer respectively with the second end of described first electric capacity, second end of described first resistance is connected with described second resistance first end, the second end of described second resistance respectively with the second end of described second electric capacity, the negative pole of described first diode, the positive pole of described second diode is connected with the first end of described 3rd resistance, second end of described 3rd resistance is connected with the inverting input of described first amplifier and the first end of described 5th resistance respectively, second end of described 4th resistance is connected with the normal phase input end of described first amplifier, the normal phase input end of described second amplifier is connected with the second end of described 5th resistance and the signal output part of described first amplifier respectively, the reversed-phase output of described second amplifier is connected with the second end of described 6th resistance, the first end of described 7th resistance is external voltage end, the first end of described 7th resistance is connected with the cathode output end of described second amplifier, the signal input part of described second singlechip is connected with the second end of described 7th resistance and the signal output part of described second amplifier respectively, the level output end of described second singlechip is connected with described 8th resistance first end, second end of described 8th resistance is connected with the signal input part of described first single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310254996.4A CN104251918A (en) | 2013-06-25 | 2013-06-25 | Intelligent measurer used for measuring aeroengine rotating speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310254996.4A CN104251918A (en) | 2013-06-25 | 2013-06-25 | Intelligent measurer used for measuring aeroengine rotating speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104251918A true CN104251918A (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310254996.4A Pending CN104251918A (en) | 2013-06-25 | 2013-06-25 | Intelligent measurer used for measuring aeroengine rotating speed |
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| Country | Link |
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| CN (1) | CN104251918A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738015A (en) * | 2019-01-11 | 2019-05-10 | 清华大学 | Signal processing apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2180999Y (en) * | 1993-12-15 | 1994-10-26 | 朱玉红 | Microcomputer controlled rotary speed meter for automobile engine |
| CN103018490A (en) * | 2012-12-04 | 2013-04-03 | 贵州黎阳航空动力有限公司 | Verification system of small magnetoelectric rotational speed sensor for aero-engine |
| CN203414478U (en) * | 2013-06-25 | 2014-01-29 | 成都旋极历通信息技术有限公司 | Intelligent measurer used for measuring rotating speed of aeroengine |
-
2013
- 2013-06-25 CN CN201310254996.4A patent/CN104251918A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2180999Y (en) * | 1993-12-15 | 1994-10-26 | 朱玉红 | Microcomputer controlled rotary speed meter for automobile engine |
| CN103018490A (en) * | 2012-12-04 | 2013-04-03 | 贵州黎阳航空动力有限公司 | Verification system of small magnetoelectric rotational speed sensor for aero-engine |
| CN203414478U (en) * | 2013-06-25 | 2014-01-29 | 成都旋极历通信息技术有限公司 | Intelligent measurer used for measuring rotating speed of aeroengine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738015A (en) * | 2019-01-11 | 2019-05-10 | 清华大学 | Signal processing apparatus |
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Application publication date: 20141231 |
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