CN203414478U - Intelligent measurer used for measuring rotating speed of aeroengine - Google Patents
Intelligent measurer used for measuring rotating speed of aeroengine Download PDFInfo
- Publication number
- CN203414478U CN203414478U CN201320366566.7U CN201320366566U CN203414478U CN 203414478 U CN203414478 U CN 203414478U CN 201320366566 U CN201320366566 U CN 201320366566U CN 203414478 U CN203414478 U CN 203414478U
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- China
- Prior art keywords
- resistance
- amplifier
- chip microcomputer
- resistor
- rotating speed
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- Expired - Lifetime
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model diskloses an intelligent measurer used for measuring the rotating speed of an aeroengine. 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 rotating speed of the aeroengine converts analog rotating speed signals into high-precision digital signals and alleviates the signal processing tasks of a central processing unit in a digital type electronic system. The intelligent measurer thus achieves relatively high timeliness and precision.
Description
Technical field
The utility model relates to a kind of for measuring the measuring equipment of aeromotor, relates in particular to a kind of for measuring the Intelligent testing measuring device of aeromotor rotating speed.
Background technology
Engine is one of equipment of various air material most criticals, start function that power is provided, guaranteed air material normal flight aloft, and the control of the digital electronic of aeromotor is the developing direction of advanced propulsion system, measuring appliance is now simulating signal by the input signal of sensor, 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.
Utility model content
The purpose of this utility model provides a kind of Intelligent testing measuring device with the aeromotor rotating speed of real-time high-precision with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
An Intelligent testing measuring device of measuring aeromotor rotating speed, comprises self-checking circuit, speed probe, the first single-chip microcomputer, second singlechip, the first electric capacity, the second electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the first comparer and the second comparer, described self-checking circuit is connected with the Chang Kaiduan of described the first single-chip microcomputer, the first output terminal of described speed probe is connected with the normal-closed end of described the first single-chip microcomputer, the second output terminal of described speed probe respectively with the first end of described the first electric capacity, the first end of described the first resistance, the first end of described the second electric capacity, the positive pole of described the first diode, the negative pole of described the second diode, the first end of described the 4th resistance, ground connection after the cathode output end of the first end of described the 6th resistance and described the second comparer is connected, the comparison input end of described the first single-chip microcomputer respectively with the second end of described the first electric capacity, the second end of described the first resistance is connected with described the second resistance first end, the second end of described the second resistance respectively with the second end of described the second electric capacity, the negative pole of described the first diode, the positive pole of described the second diode is connected with the first end of described the 3rd resistance, the second end of described the 3rd resistance is connected with the first end of described the 5th resistance with the inverting input of described the first comparer respectively, the second end of described the 4th resistance is connected with the normal phase input end of described the first comparer, the normal phase input end of described the second comparer is connected with the signal output part of described the first comparer with the second end of described the 5th resistance respectively, the reversed-phase output of described the second comparer is connected with the second end of described the 6th resistance, the first end of described the 7th resistance is external voltage end, the first end of described the 7th resistance is connected with the cathode output end of described the second comparer, the signal input part of described second singlechip is connected with the signal output part of described the second comparer with the second end of described the 7th resistance respectively, the level output end of described second singlechip is connected with described the 8th resistance first end, the second end of described the 8th resistance is connected with the signal input part of described the first single-chip microcomputer.
The beneficial effects of the utility model are:
The utility model becomes high-precision digital signal for measuring the Intelligent testing measuring device of aeromotor rotating speed by rotating speed analog-signal transitions, alleviated the signal processing tasks of the CPU (central processing unit) of digital electric subsystem, thereby made Intelligent testing measuring device reach higher ageing and precision.
Accompanying drawing explanation
Fig. 1 is described in the utility model for measuring the circuit diagram of the Intelligent testing measuring device of aeromotor rotating speed.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the utility model, for measuring the Intelligent testing measuring device of aeromotor rotating speed, comprises self-checking circuit, speed probe, the first single-chip microcomputer IC1, second singlechip IC2, the first capacitor C 1, the second capacitor C 2, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the first comparer U1 and the second comparer U2, self-checking circuit is connected with the Chang Kaiduan of the first single-chip microcomputer IC1, the 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 capacitor C 1, the first end of the first resistance R 1, the first end of the second capacitor C 2, the positive pole of the first diode D1, the negative pole of the second diode D2, the first end of the 4th resistance R 4, ground connection after the cathode output end of the first end of the 6th resistance R 6 and the second comparer U2 is connected, the comparison input end of the first single-chip microcomputer IC1 respectively with the second end of the first capacitor C 1, the second end of the first resistance R 1 is connected with the second resistance R 2 first ends, the second end of the second resistance R 2 respectively with the second end of the second capacitor C 2, 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 R 3, the second end of the 3rd resistance R 3 is connected with the first end of the 5th resistance R 5 with the inverting input of the first comparer U1 respectively, the second end of the 4th resistance R 4 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 the signal output part of the first comparer U1 with the second end of the 5th resistance R 5 respectively, the reversed-phase output of the second comparer U2 is connected with the second end of the 6th resistance R 6, the first end of the 7th resistance R 7 is external voltage end, the first end of the 7th resistance R 7 is connected with the cathode output end of the second comparer U2, the signal input part of second singlechip IC2 is connected with the signal output part of the second comparer U2 with the second end of the 7th resistance R 7 respectively, the level output end of second singlechip IC2 is connected with the 8th resistance R 8 first ends, the second end of the 8th resistance R 8 is connected with the signal input part of the first single-chip microcomputer.
Use the utility model a kind of as follows for measuring the principle of work of Intelligent testing measuring device of aeromotor rotating speed:
On Intelligent testing measuring device, there is self-checking function, electronic analog swtich is selected the first single-chip microcomputer IC1, when the level output pin of second singlechip IC2 is exported high level, power-on self-test circuit is connected, when second singlechip IC2 output low level, tach signal is introduced into the signal conditioning circuit of Intelligent testing measuring device, first the signal of speed probe output forms voltage-frequency signal in the first resistance R 1 and the first capacitor C 2, by the second resistance R 2, the low-pass filter circuit that the 3rd resistance R 3 and the second capacitor C 2 form, only allow low frequency signal to pass through, the diode of two reverse parallel connections is clamped down on the output voltage of speed probe within the specific limits, bipolar square wave signal enters the second comparer U2, by the second comparer U2, form time lag comparator circuit, prevent that waveform shakiness from causing more inaccurate.After comparator circuit, tach signal becomes unipolarity square-wave signal, and is transported to second singlechip IC2 and counts 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, the first single-chip microcomputer, second singlechip, the first electric capacity, the second electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the first amplifier and the second amplifier, described self-checking circuit is connected with the Chang Kaiduan of described the first single-chip microcomputer, the first output terminal of described speed probe is connected with the normal-closed end of described the first single-chip microcomputer, the second output terminal of described speed probe respectively with the first end of described the first electric capacity, the first end of described the first resistance, the first end of described the second electric capacity, the positive pole of described the first diode, the negative pole of described the second diode, the first end of described the 4th resistance, ground connection after the cathode output end of the first end of described the 6th resistance and described the second amplifier is connected, the comparison input end of described the first single-chip microcomputer respectively with the second end of described the first electric capacity, the second end of described the first resistance is connected with described the second resistance first end, the second end of described the second resistance respectively with the second end of described the second electric capacity, the negative pole of described the first diode, the positive pole of described the second diode is connected with the first end of described the 3rd resistance, the second end of described the 3rd resistance is connected with the first end of described the 5th resistance with the inverting input of described the first amplifier respectively, the second end of described the 4th resistance is connected with the normal phase input end of described the first amplifier, the normal phase input end of described the second amplifier is connected with the signal output part of described the first amplifier with the second end of described the 5th resistance respectively, the reversed-phase output of described the second amplifier is connected with the second end of described the 6th resistance, the first end of described the 7th resistance is external voltage end, the first end of described the 7th resistance is connected with the cathode output end of described the second amplifier, the signal input part of described second singlechip is connected with the signal output part of described the second amplifier with the second end of described the 7th resistance respectively, the level output end of described second singlechip is connected with described the 8th resistance first end, the second end of described the 8th resistance is connected with the signal input part of described the first single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320366566.7U CN203414478U (en) | 2013-06-25 | 2013-06-25 | Intelligent measurer used for measuring rotating speed of aeroengine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320366566.7U CN203414478U (en) | 2013-06-25 | 2013-06-25 | Intelligent measurer used for measuring rotating speed of aeroengine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203414478U true CN203414478U (en) | 2014-01-29 |
Family
ID=49977360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320366566.7U Expired - Lifetime CN203414478U (en) | 2013-06-25 | 2013-06-25 | Intelligent measurer used for measuring rotating speed of aeroengine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203414478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251918A (en) * | 2013-06-25 | 2014-12-31 | 成都旋极历通信息技术有限公司 | Intelligent measurer used for measuring aeroengine rotating speed |
-
2013
- 2013-06-25 CN CN201320366566.7U patent/CN203414478U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251918A (en) * | 2013-06-25 | 2014-12-31 | 成都旋极历通信息技术有限公司 | Intelligent measurer used for measuring aeroengine rotating speed |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |