CN87214947U - Peak voltage measuring apparatus - Google Patents
Peak voltage measuring apparatus Download PDFInfo
- Publication number
- CN87214947U CN87214947U CN 87214947 CN87214947U CN87214947U CN 87214947 U CN87214947 U CN 87214947U CN 87214947 CN87214947 CN 87214947 CN 87214947 U CN87214947 U CN 87214947U CN 87214947 U CN87214947 U CN 87214947U
- Authority
- CN
- China
- Prior art keywords
- pass filter
- crest voltage
- peak voltage
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model provides a peak voltage measuring apparatus, which is mainly used for measuring peak voltage output by various sensors, particularly, measuring the vibration peak values of various machines (such as machine tools, engines, vessels, etc.) and dynamic balancing machines by matching with magnetoelectric sensors. The utility model is composed of a signal input device, a first-stage low pass filter, an amplifying circuit, a second-stage low pass filter, a peak voltage collector and a digital voltmeter (output). The utility model has the advantages of accurate reading, sensitive reaction, small size, low cost, and convenient operation.
Description
The utility model is a kind of digital crest voltage measuring instrument.It is mainly used in the crest voltage of measuring various sensor outputs.The crest voltage of sensor output has reflected the peak value of sensor input physical quantity.With mechanical industry is example, the utility model cooperates with magnetoelectric sensor, can measure the vibration (for example lathe, engine, boats and ships or the like) of various machineries, obtain their vibration peak (being resonance point), for eliminating resonance, improving mechanical property foundation is provided.Can also be used to measure the vibration peak of dynamic balancing machine, and then obtain the weight and the position of uneven amount on the rotor, for balancing rotor provides foundation.But currently used means of testing is to cooperate with vialog with magnetoelectric sensor, and its subject matter has following four aspects:
(1), vialog adopts is pointer gauge outfit, its measuring accuracy is low, and slower to the peak voltage reaction.
(2), vialog adopts pointer header, the operator is difficult for reading accurate values.
(3), pointer header is difficult to the short crest voltage of Measuring Time.
(4), the price of vialog is higher.
The utility model has adopted the amplification, the holding circuit that are suitable for digital voltmeter at the problems referred to above, and its purpose is to provide a kind of reading accurate, to being quick on the draw of crest voltage, dependable performance, cheap measuring instrument.
Fig. 1, circuit structure block diagram
Fig. 2, circuit theory diagrams
, and be illustrated as embodiment of the present utility model with accompanying drawing.
The utility model is formed (Fig. 1) in order by following three parts:
1, signal input;
2, circuit;
A, first order low-pass filter;
B, amplifying circuit;
C, second level low-pass filter;
D, crest voltage are gathered retainer;
E, isolator.
3, digital voltmeter (output).
In circuit (Fig. 2),, after input signal, added by C in order to eliminate the high-frequency interferencing signal in the input signal
1And R
1The first order low-pass filter of forming is in order to eliminate high-frequency interferencing signal, C effectively
1Capacity greater than 100 μ F.After this low-pass filter, IC
1, R
2(R
2a, R
2b), R
3(R
3a, R
3b), R
4, D
1, D
2, D
3, W
1And K
1Formed the changeable fluid amplifying circuit, W
1Be amplifier IC
1The zeroising potentiometer, add a diode D at amplifying circuit mid point a and point between e
2, it guarantees when crest voltage that as the voltage compensation diode voltage at some a place equates with the voltage at some b place, because amplifier IC
2Enlargement factor be approximately 1, so the voltage at some a place equates with output voltage.K switch
1Be used for changing amplifier IC
1Enlargement factor.After amplifying circuit, added by R again
4, R
5And C
2The second level low-pass filter of forming, it has eliminated amplifier IC
1Output voltage in high frequency noise.D
4And C
3Formed crest voltage and gathered retainer, when mechanical vibration reached peak value, through the second low-pass filter filtering, amplifying circuit amplified, and remains on C at last by the crest voltage of sensor output
3On.IC
2Be isolator, utilize its high input impedance to eliminate measurement instrument C
3The influence that keeps crest voltage.K
2The reset switch that finishes for measurement.K
3Be to adjust to measure selector switch, can adjust amplifier IC respectively with it
1And IC
2Zero point.
Claims (3)
1, a kind ofly be used to measure various sensors output crest voltage measuring instruments, it is formed by connecting by sensor, circuit and output display part, and the crest voltage that it is characterized in that sensor output is through R
1And C
1Enter by IC after the first order low-pass filter filtering of forming
1, R
2, R
3, R
4, D
1, D
2, D
3, W
1And K
1The changeable fluid amplifying circuit of forming is again through R
4, R
5And C
2Enter D after the second level low-pass filter filtering of forming
4And C
4The crest voltage of forming is gathered retainer, isolator IC
2, at last by the digital voltmeter display result.
2, crest voltage measuring instrument according to claim 1 is characterized in that in amplifying circuit, adds a diode D between some a and the some e
2
3, crest voltage measuring instrument according to claim 1 and 2 is characterized in that C in the first order low-pass filter
1Capacity greater than 100 μ F.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 87214947 CN87214947U (en) | 1987-11-06 | 1987-11-06 | Peak voltage measuring apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 87214947 CN87214947U (en) | 1987-11-06 | 1987-11-06 | Peak voltage measuring apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
CN87214947U true CN87214947U (en) | 1988-10-12 |
Family
ID=4829159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 87214947 Withdrawn CN87214947U (en) | 1987-11-06 | 1987-11-06 | Peak voltage measuring apparatus |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN87214947U (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101048668B (en) * | 2004-06-23 | 2010-05-05 | 泰洛丹公司 | Comparator feedback peak detector |
CN103116062A (en) * | 2013-03-11 | 2013-05-22 | 矽力杰半导体技术(杭州)有限公司 | Circuit and method for detecting voltage peak |
CN103323100A (en) * | 2013-05-24 | 2013-09-25 | 江阴市江凌科技有限公司 | Vibration amplitude measuring circuit |
CN111024216A (en) * | 2019-12-24 | 2020-04-17 | 北京金迈捷科技有限公司 | Online range adjusting system and method |
-
1987
- 1987-11-06 CN CN 87214947 patent/CN87214947U/en not_active Withdrawn
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101048668B (en) * | 2004-06-23 | 2010-05-05 | 泰洛丹公司 | Comparator feedback peak detector |
CN103116062A (en) * | 2013-03-11 | 2013-05-22 | 矽力杰半导体技术(杭州)有限公司 | Circuit and method for detecting voltage peak |
CN103116062B (en) * | 2013-03-11 | 2015-07-08 | 矽力杰半导体技术(杭州)有限公司 | Circuit and method for detecting voltage peak |
CN103323100A (en) * | 2013-05-24 | 2013-09-25 | 江阴市江凌科技有限公司 | Vibration amplitude measuring circuit |
CN111024216A (en) * | 2019-12-24 | 2020-04-17 | 北京金迈捷科技有限公司 | Online range adjusting system and method |
CN111024216B (en) * | 2019-12-24 | 2021-09-21 | 北京金迈捷科技有限公司 | Online range adjusting system and method |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
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 |