CN201795857U - Multi-functional tester - Google Patents
Multi-functional tester Download PDFInfo
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- CN201795857U CN201795857U CN2010205337432U CN201020533743U CN201795857U CN 201795857 U CN201795857 U CN 201795857U CN 2010205337432 U CN2010205337432 U CN 2010205337432U CN 201020533743 U CN201020533743 U CN 201020533743U CN 201795857 U CN201795857 U CN 201795857U
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Abstract
The utility model relates to a measuring instrument, i.e. a multi-functional tester which is more suitable for field tests on high-speed railways and planes. The control circuit of the measuring instrument comprises a vibration measurement circuit, a rotation speed measurement circuit, a temperature measurement circuit and a pressure measurement circuit; the vibration measurement circuit comprises a vibration sensor signal input end, an amplifier circuit, a band-pass filter circuit and a digital display meter circuit; the rotation speed measurement circuit comprises a rotation speed sensor signal input end, a filter amplifier circuit and a digital rotation speed display meter circuit; the temperature measurement circuit comprises a temperature sensor signal input end, an amplifier circuit and a digital temperature display meter circuit; and the pressure measurement circuit comprises a pressure sensor signal input end, an amplifier circuit and a digital pressure display meter circuit. The utility model is characterized by compact structure, accurate measurement, convenient and reliable calibration and multiple data tests, and is convenient to carry and use, and the utility model solves the problem that a field test on various indexes requires a variety of devices and instruments.
Description
Technical field
The utility model relates to a kind of surveying instrument, promptly is more suitable for the multifunctional tester of high ferro and aircraft field condition test usefulness.
Background technology
In the prior art, the surveying instrument of vibration, rotating speed, temperature, pressure is the independent respectively instrument that uses, and the every index of on-the-spot test need be equipped with the plurality of devices instrument, and its shortcoming is to use inconvenience, the equipment investment height.
The utility model content
The purpose of this utility model is to provide a kind of multifunctional tester easy to use at above-mentioned deficiency.
Technical solution of the present utility model is: its control circuit involving vibrations metering circuit of multifunctional tester, tachometric survey circuit, temperature measuring circuit and pressure measurement circuitry; Described vibration survey circuit involving vibrations sensor signal input end, amplifier circuit, band pass filter circuit and digital wash circuit; Described tachometric survey circuit comprises signals of rotational speed sensor input end, filter amplifier circuit and digital rotating speed indicator gauge circuit; Described temperature measuring circuit comprises temperature sensor signal input end, amplifier circuit and digital temperature indicator gauge circuit; Described pressure measurement circuitry comprises pressure sensor signal input end, amplifier circuit and digital pressure indicator gauge circuit.Realize the measurement and the calibration of vibration; The measurement of rotating speed and calibration; The measurement of temperature and calibration; The measurement of pressure and calibration.
The measurement of vibration by vibration signal input interface end inputted vibration signal, shows vibration values after amplifying bandpass filtering, test specification can be adjusted its test specification according to the test needs.The measurement of rotating speed, by tach signal input interface end input speed signal, after shaping is amplified in filtering, pass to have computing, the digital rotating speed indicator gauge circuit (integrated mask encapsulation) of driving and Presentation Function, measurement range 0-99999 rev/min.The measurement of temperature by temperature signal input interface end input temp signal, is passed to the digital temperature indicator gauge circuit with temperature linearity processing capacity through amplification, shows tested position temperature value, 400 ℃-900 ℃ of measurement ranges.The measurement of pressure, by the electric pressure signal that piezoresistance sensor is measured, through amplifying and display driver, measurement range can be adjusted as required.The calibration of these four parts is compared by calibration signal source and revises and output, and wherein vibration and the shared standard signal source generator of rotating speed carry out the calibration correction error, and the shared standard signal source generator of temperature and pressure carries out the calibration correction error.
The utility model has the advantages that: multifunctional tester is the good assistant of high ferro and test of aircraft field condition and calibration.Test specification has: the measurement of vibration, rotating speed, temperature, pressure and calibration.Have compact conformation, measure accurately, calibrate convenient and reliablely, portably use convenience, integrate the characteristics that several data is tested, solved the problem that the every index of on-the-spot test needs the plurality of devices instrument.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model.
Fig. 2 is vibration survey circuit theory diagrams of the present utility model.
Fig. 3 is tachometric survey circuit theory diagrams of the present utility model.
Fig. 4 is temperature of the present utility model, pressure measurement circuitry schematic diagram.
Fig. 5 is an automatic blocking conversion control circuit schematic diagram of the present utility model.
Fig. 6 is that the standard signal source that vibration survey circuit of the present utility model is connected with the tachometric survey circuit is imitated accurate circuit theory diagrams.
Fig. 7 is that the standard signal source that temperature measuring circuit of the present utility model is connected with pressure measurement circuitry is imitated accurate circuit theory diagrams.
Embodiment
Referring to Fig. 1, its control circuit involving vibrations metering circuit of multifunctional tester, tachometric survey circuit, temperature measuring circuit and pressure measurement circuitry; Described vibration survey circuit involving vibrations sensor signal input end, signal amplification circuit, band pass filter circuit and digital display circuit; Described tachometric survey circuit comprises that signals of rotational speed sensor input end, signal filtering amplifying circuit, mask are packaged with the digital rotating speed indicator gauge circuit of computing driving circuit; Described temperature measuring circuit comprises that temperature sensor signal input end, signal amplifier circuit, mask are packaged with the digital temperature indicator gauge circuit of temperature linearity treatment circuit, by driving the charactron effect, the voltage relationship that is not correspondence is converted to corresponding linear voltage relation; Described pressure measurement circuitry comprises that pressure sensor signal input end, signal amplifier circuit, mask are packaged with the digital pressure indicator gauge circuit of driving circuit.
More than the calibration of four parts (function) compare by calibration signal source and revise and output, wherein vibration and the shared standard signal source generator of rotating speed carry out the calibration correction error, and the shared standard signal source generator of temperature and pressure carries out the calibration correction error.The reference signal of standard signal source is a quartz crystal, the synthetic multiple output of numeral, and 0-15MHz is adjustable continuously.The signal source main part all shields, and prevents and the influencing each other of measure portion that standard signal source has external output concurrently, to calibrate the measuring instrument and meter of other inconvenient dismounting.Except that measurement and synchronous calibration function, also has the function of synchronous detection measurement circuit and sensor.When line fault and sensor fault take place when, can test out trouble location and malfunction, can satisfy situ metrology test needs under the various complex environments.
In order to make the volume miniaturization of complete machine, so that portably use, circuit design is the height integrated circuit, and partial circuit is the mask encapsulation, makes the succinct refining of integrated circuit.Vibration, rotating speed, temperature, pressure, this four major part and standard signal source partly can use simultaneously, also can independently use, and are independent of each other.This multifunctional tester machine shell is of a size of length 300mm, width 240mm, and height 200mm is about about 2000 grams of aluminum alloy casing complete machine quality.
This multifunctional tester has been installed pointer analogue instrument and has been shown, can observe dynamic changing process, in order to reduce transportation or to carry in the way to the damage of mechanical pointer analogue instrument, the also unique cover outage automatic blocking conversion control circuit that designed of this polymeter, this circuit is formed (referring to Fig. 1,5) by relay J and sustained diode.Automatic blocking pointer-type analogue instrument has only in working order down, and self-locking state just can be opened.
Referring to Fig. 2, the amplifier circuit of vibration survey circuit and band pass filter circuit comprise two four-way operational amplifier integrated circuit LM324 and Resistor-Capacitor Unit.The vibration survey signal is exported to 3 pin of U2LM324 by 1 pin after the 2 pin input of U1LM324 integrated circuit is amplified, bandpass filter through U2LM324 integrated circuit and Resistor-Capacitor Unit formation is finished needed survey frequency, 13 pin that export U1LM324 at 7 pin through U2LM324 to constitute the promotion amplification, the vibration measuring signal voltage of the 14 pin output certain amplitude of U1LM324 is through 9 pin and the input of 5 pin of U1LM324, constitute the wave detector output dc voltage by these two four-way operational amplifier LM324, export to digital voltmeter and show corresponding vibration values.
Referring to Fig. 3, the filter amplifier circuit of tachometric survey circuit comprises the pressure stabilization filter circuit, and the pressure stabilization filter circuit is made of resistance R, voltage stabilizing diode DW and capacitor C.Show corresponding tachometer value by packaged digital rotating speed indicator gauge again.
Referring to Fig. 4, the shared binary channels operational amplifier integrated circuit LM358 of the amplifier circuit of temperature measuring circuit and pressure measurement circuitry.Temperature signal amplifies after 7 pin are exported to digital temperature indicator gauge demonstration corresponding temperature value through the U3LM358 integrated circuit.Pressure signal amplifies after 1 pin is exported to digital pressure indicator gauge demonstration corresponding pressure value through the U3LM358 integrated circuit.
Referring to Fig. 5, be the automatic blocking conversion control circuit, this circuit is made up of relay J and sustained diode, utilizes closing coil to move in magnetic field and produces the motion of eddy current meeting damping wire frame, prevents that pointer from rotating.
Referring to Fig. 6, vibration survey circuit and tachometric survey circuit are connected with standard signal source and imitate accurate circuit, and this circuit comprises high precision monolithic signal generator integrated circuit (IC) L8038, and (peripheral cell is few, and volume is little, working stability, temperature influence is little) and double operational integrated circuit LM358.The LM358 chip cooperates the ICL8038 chip to use, and cooperates output adjustment, plays the buffer amplifier effect, adjusts signal intensity.
Referring to Fig. 7, temperature measuring circuit and pressure measurement circuitry are connected with standard signal source and imitate accurate circuit, temperature, pressure signal source are roughly the same, express with electromotive force or voltage, this circuit comprises that three terminal regulator integrated circuit 7812,7805 is (through twice high precision voltage stabilizing, the degree of stability height) and voltage stabilizing diode (through twice dividing potential drop, high voltage is converted to low-voltage, be convenient to adjust voltage).
Claims (7)
1. a multifunctional tester is characterized in that its control circuit involving vibrations metering circuit, tachometric survey circuit, temperature measuring circuit and pressure measurement circuitry; Described vibration survey circuit involving vibrations sensor signal input end, amplifier circuit, band pass filter circuit and digital wash circuit; Described tachometric survey circuit comprises signals of rotational speed sensor input end, filter amplifier circuit and digital rotating speed indicator gauge circuit; Described temperature measuring circuit comprises temperature sensor signal input end, amplifier circuit and digital temperature indicator gauge circuit; Described pressure measurement circuitry comprises pressure sensor signal input end, amplifier circuit and digital pressure indicator gauge circuit.
2. according to the described multifunctional tester of claim 1, it is characterized in that comprising the automatic blocking conversion control circuit, this circuit is made up of relay (J) and fly-wheel diode (D).
3. according to the described multifunctional tester of claim 1, it is characterized in that vibration survey circuit and tachometric survey circuit are connected with standard signal source and imitate accurate circuit, this circuit comprises high precision monolithic signal generator integrated circuit (IC) L8038 and binary channels operational amplifier integrated circuit LM358.
4. according to the described multifunctional tester of claim 1, it is characterized in that temperature measuring circuit and pressure measurement circuitry are connected with standard signal source and imitate accurate circuit, this circuit comprises three terminal regulator integrated circuit 7812,7805 and voltage stabilizing diode.
5. according to the described multifunctional tester of claim 1, it is characterized in that the amplifier circuit of vibration survey circuit and band pass filter circuit comprise two four-way operational amplifier integrated circuit LM324.
6. according to the described multifunctional tester of claim 1, it is characterized in that the filter amplifier circuit of tachometric survey circuit comprises the pressure stabilization filter circuit, the pressure stabilization filter circuit is made of resistance (R), voltage stabilizing diode (DW) and electric capacity (C).
7. according to the described multifunctional tester of claim 1, it is characterized in that the shared binary channels operational amplifier integrated circuit LM358 of amplifier circuit of temperature measuring circuit and pressure measurement circuitry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205337432U CN201795857U (en) | 2010-09-17 | 2010-09-17 | Multi-functional tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205337432U CN201795857U (en) | 2010-09-17 | 2010-09-17 | Multi-functional tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201795857U true CN201795857U (en) | 2011-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205337432U Expired - Fee Related CN201795857U (en) | 2010-09-17 | 2010-09-17 | Multi-functional tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201795857U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950191A (en) * | 2014-03-26 | 2015-09-30 | 成都凯天电子股份有限公司 | Apparatus for on-line detection of characteristic of electronic components of engine |
| CN105955143A (en) * | 2016-06-25 | 2016-09-21 | 江苏江凌测控科技股份有限公司 | Multichannel touch screen man-machine monitoring circuit |
| CN106368600A (en) * | 2016-09-06 | 2017-02-01 | 深圳市玖品空气净化科技有限公司 | Intelligent rock drilling device used for petroleum exploration |
| CN108106718A (en) * | 2017-12-15 | 2018-06-01 | 北京安达维尔航空设备有限公司 | A kind of machine-carried type helicopter vibration monitors system |
| CN111239526A (en) * | 2020-02-28 | 2020-06-05 | 山东中科先进技术研究院有限公司 | Aircraft communication controller testing arrangement |
-
2010
- 2010-09-17 CN CN2010205337432U patent/CN201795857U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950191A (en) * | 2014-03-26 | 2015-09-30 | 成都凯天电子股份有限公司 | Apparatus for on-line detection of characteristic of electronic components of engine |
| CN105955143A (en) * | 2016-06-25 | 2016-09-21 | 江苏江凌测控科技股份有限公司 | Multichannel touch screen man-machine monitoring circuit |
| CN106368600A (en) * | 2016-09-06 | 2017-02-01 | 深圳市玖品空气净化科技有限公司 | Intelligent rock drilling device used for petroleum exploration |
| CN106368600B (en) * | 2016-09-06 | 2018-10-09 | 东营市洁东石油技术开发有限公司 | A kind of intelligent rock drilling device for oil exploration |
| CN108106718A (en) * | 2017-12-15 | 2018-06-01 | 北京安达维尔航空设备有限公司 | A kind of machine-carried type helicopter vibration monitors system |
| CN111239526A (en) * | 2020-02-28 | 2020-06-05 | 山东中科先进技术研究院有限公司 | Aircraft communication controller testing arrangement |
| CN111239526B (en) * | 2020-02-28 | 2022-02-18 | 山东中科先进技术研究院有限公司 | Aircraft communication controller testing arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JILIN AIR CHINA AERO-ENGINE MAINTENANCE LLC Free format text: FORMER NAME: NO. 5711 FACTORY AVIATION INDUSTRY OF CHINA GROUP CORP. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Tonghua City, Jilin province 135300 Jingan Liuhe County Commission Patentee after: Jilin AVIC Aircraft Engine Maintenance Co., Ltd. Address before: Tonghua City, Jilin province 135300 Jingan Liuhe County Commission Patentee before: Aviation Industry Corporation of China No. 5711 Factory |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Liuhe Town, Tonghua city 135300 street in Jingan Liuhe County in Jilin Province Patentee after: China Hangfa Jilin aero engine maintenance limited liability company Address before: Tonghua City, Jilin province 135300 Jingan Liuhe County Commission Patentee before: Jilin AVIC Aircraft Engine Maintenance Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20180917 |