CN106405138A - Novel rotating speed measuring meter - Google Patents
Novel rotating speed measuring meter Download PDFInfo
- Publication number
- CN106405138A CN106405138A CN201610781315.3A CN201610781315A CN106405138A CN 106405138 A CN106405138 A CN 106405138A CN 201610781315 A CN201610781315 A CN 201610781315A CN 106405138 A CN106405138 A CN 106405138A
- Authority
- CN
- China
- Prior art keywords
- module
- signal
- signals
- amplification
- rotating speed
- 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.)
- Pending
Links
- 230000003321 amplification Effects 0.000 claims abstract description 13
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 13
- 238000007493 shaping process Methods 0.000 claims abstract description 13
- 239000003990 capacitor Substances 0.000 claims abstract description 6
- 238000005516 engineering process Methods 0.000 claims description 6
- 230000011664 signaling Effects 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000003750 conditioning effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012360 testing method Methods 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
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The invention discloses a novel rotating speed measuring meter comprising a sensor module, a filter capacitor, an amplification signal module, a shaping module and a counting and display module. The sensor module is used for detecting a signal source. The filter capacitor filters interference signals. The amplification signal module performs signal amplification, and the signals acquired after amplification are sine wave signals. The shaping module is used for shaping the sine wave signals so as to adjust the signals into square wave signals. Finally the square wave signals are transmitted to the counting and display module so that complete waveforms and counting numbers are outputted. The beneficial effects of the novel rotating speed measuring meter are that a front-end conditioning circuit is designed in an optimized way for aiming at high-noise and low-interference small signals, and common-mode signals are effectively suppressed by utilizing a meter amplifier so as to guarantee the accuracy requirement of the acquired data.
Description
Technical field
The present invention relates to field of measuring technique, more particularly to a kind of novel rotating speed quantifier.
Background technology
It is often necessary to carry out the measurement of the physical quantitys such as various amount angular displacement and speed in control field.Currently, generation
One new technological revolution is faced with boundary, one of important technology of this revolution is exactly e measurement technology.In practical engineering application
In, having preferable stability and precision is the main standard measuring rotating speed corner.Rotating speed is the important basic status of motor
Parameter, in the observing and controlling of a lot of motor systems, is required for the rotating speed of motor is measured, the precision of measurement directly affects system
Control situation, the only high precision test of rotating speed just can obtain high-precision control system.Often there is many in industry spot
Interference factor, as M signal transmission information, such TT＆C system can ensure that therefore this experimental selection magnetic signal
The stability of measurement and high precision.
The signal of some occasion sensor acquisition is fainter, and is submerged in substantial amounts of random noise, in such cases,
General acquisition system and measuring method cannot accurately detect this signal, larger on measurement stability and high precision impact.
Content of the invention
The purpose of the present invention is for defect present in prior art, and provides a kind of novel rotating speed quantifier.
For realizing the purpose of the present invention, the invention provides a kind of novel rotating speed quantifier, including sensor assembly, filtering
Electric capacity, amplification signaling module, Shaping Module, technology and display module, described sensor assembly is used for detectable signal source, described filter
Ripple electric capacity filters off interference signal, amplifies signaling module and carries out signal amplification, after amplification, the signal of collection is sine wave signal,
Signal is adjusted to square-wave signal for carrying out shaping to sine wave signal by Shaping Module, finally square-wave signal is transferred to counting
And display module, export complete waveform and count numbers.
Compared with prior art, beneficial effects of the present invention are, the design is directed to the little small-signal of very noisy interference, optimizes
Design front end modulate circuit, using instrument amplifier effective suppression common mode signal it is ensured that the required precision of gathered data.
Brief description
Fig. 1 show present configuration schematic diagram；
Fig. 2 show the circuit theory diagrams of the present invention.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.It should be appreciated that it is described herein
Specific embodiment only in order to explain the present invention, be not intended to limit the present invention.
It should be noted that " connection " described herein and be used for expressing the word of " connection ", such as " being connected ",
" being connected " etc., both included a certain part and be directly connected to another part, and also included a certain part and pass through miscellaneous part and another portion
Part is connected.
It should be noted that term used herein above is merely to describe specific embodiment, and it is not intended to restricted root
Illustrative embodiments according to the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
Be also intended to including plural form, additionally, it should be understood that, when in this manual using belong to "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, part or module, assembly and/or combinations thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, "
Two " it is etc. for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that such use
Data can exchange in the appropriate case, so that presently filed embodiment described herein for example can be with except here
Order beyond those of diagram or description is implemented.Additionally, term " comprising " and " having " and their any deformation it is intended that
It is to cover non-exclusive comprising, for example, contain process, method, system, product or the equipment of series of steps or unit not
It is necessarily limited to those steps or the unit clearly listed, but may include clearly not listing or for these processes, side
Method, product or the intrinsic other steps of equipment or unit.
For the ease of description, space relative terms can be used here, such as " ... on ", " ... top ",
" in ... upper surface ", " above " etc., for describe as a part shown in the figure or module or feature and other
Part or the spatial relation of module or feature.It should be appreciated that space relative terms be intended to comprise except part or
Different azimuth in use or operation outside orientation described by figure for person's module.For example, if the part in accompanying drawing
Or module is squeezed, then be described as " above miscellaneous part or module or construction " or " in miscellaneous part or module or
On construction " part or module after will be positioned as " below miscellaneous part or module or construction " or " at other
Under part or module or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.This part or module other different modes positioning (can also ratate 90 degrees or be in other
Orientation), and respective explanations are made to space used herein above description relatively.
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Mutually combine.
As shown in figure 1, for realizing the purpose of the present invention, the invention provides a kind of novel rotating speed quantifier, including sensing
Device module, filter capacitor, amplification signaling module, Shaping Module, technology and display module, described sensor assembly is used for detecting letter
Number source, described filter capacitor filters off interference signal, amplifies signaling module and carries out signal amplification, after amplification, the signal of collection is
Sine wave signal, signal is adjusted to square-wave signal for carrying out shaping to sine wave signal by Shaping Module, finally believes square wave
Number it is transferred to counting and display module, export complete waveform and count numbers.
Compared with prior art, beneficial effects of the present invention are, the design is directed to the little small-signal of very noisy interference, optimizes
Design front end modulate circuit, using instrument amplifier effective suppression common mode signal it is ensured that the required precision of gathered data.
As shown in Fig. 2 the supply voltage starting obtains stable magnitude of voltage through the pressure stabilization function of electric capacity, through two
The partial pressure of substitutional resistance, provides running voltage to sensor, and hot-wire coil exports the voltage of mV level after sensing pinion rotation, defeated
Enter the input to AD620, because AD620 itself needs a reference voltage, the follower being constituted with LM358 can be AD620
There is provided stable reference voltage, the amplification of AD620 is determined by the resistance value of two inputs, through being calculated gain is
150 AD620 needs the resistance that a resistance is about 337 Ω, and the resistance that finally have selected 330 Ω replaces.Last defeated in AD620
Go out one waveform of end output, eliminate the interference effect of weak voltage in the shaping through audion, reach and finally can count
Square-wave voltage is revolution, and design circuit is equivalent to a novel rotating speed quantifier.
The above is only the preferred embodiment of the present invention it is noted that common skill for the art
For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also should be regarded as protection scope of the present invention.
Claims (1)
1. a kind of novel rotating speed quantifier is it is characterised in that including sensor assembly, filter capacitor, amplifying signaling module, shaping
Module, technology and display module, described sensor assembly is used for detectable signal source, and described filter capacitor filters off interference signal,
Amplify signaling module and carry out signal amplification, after amplification, the signal of collection is sine wave signal, Shaping Module is used for sine wave
Signal carries out shaping and signal is adjusted to square-wave signal, finally square-wave signal is transferred to counting and display module, and output is complete
Waveform and count numbers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610781315.3A CN106405138A (en) | 2016-08-31 | 2016-08-31 | Novel rotating speed measuring meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610781315.3A CN106405138A (en) | 2016-08-31 | 2016-08-31 | Novel rotating speed measuring meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106405138A true CN106405138A (en) | 2017-02-15 |
Family
ID=58000718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610781315.3A Pending CN106405138A (en) | 2016-08-31 | 2016-08-31 | Novel rotating speed measuring meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106405138A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4764685A (en) * | 1985-12-05 | 1988-08-16 | Alfred Teves Gmbh | Method and circuit configuration for processing the output signals of a rotational speed sensor |
| EP1770401A1 (en) * | 2005-09-28 | 2007-04-04 | Jaquet AG | Method and device for detecting rotational speed |
| CN101083102A (en) * | 2007-04-24 | 2007-12-05 | 清华大学深圳研究生院 | Device for detecting speed of mainshaft of CD drive |
| CN101181894A (en) * | 2007-12-17 | 2008-05-21 | 天津理工大学 | ABS brake anti-lock device based on DSP56F8346 |
| CN103134943A (en) * | 2013-02-28 | 2013-06-05 | 无锡隆盛科技股份有限公司 | High-voltage Hall type rotating speed sensor |
-
2016
- 2016-08-31 CN CN201610781315.3A patent/CN106405138A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4764685A (en) * | 1985-12-05 | 1988-08-16 | Alfred Teves Gmbh | Method and circuit configuration for processing the output signals of a rotational speed sensor |
| EP1770401A1 (en) * | 2005-09-28 | 2007-04-04 | Jaquet AG | Method and device for detecting rotational speed |
| CN101083102A (en) * | 2007-04-24 | 2007-12-05 | 清华大学深圳研究生院 | Device for detecting speed of mainshaft of CD drive |
| CN101181894A (en) * | 2007-12-17 | 2008-05-21 | 天津理工大学 | ABS brake anti-lock device based on DSP56F8346 |
| CN103134943A (en) * | 2013-02-28 | 2013-06-05 | 无锡隆盛科技股份有限公司 | High-voltage Hall type rotating speed sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101197072B (en) | Wheel velocity signal capturing system | |
| CN107589051B (en) | Oil abrasive particle monitoring sensor | |
| CN101881791A (en) | Voltage detection device | |
| CN211741143U (en) | Portable air anion concentration detector | |
| CN207881859U (en) | A kind of motor in electric automobile temperature sensing circuit | |
| CN109709500A (en) | Low-intensity magnetic field signal acquisition circuit | |
| CN104320092B (en) | A kind of broadband low noise differential amplifier circuit of Weak absorption | |
| CN204330080U (en) | A kind of liquid level detection circuit based on sampling capacitance | |
| CN104880143A (en) | Bridge type resistor strain sensor multi-mode fault detection device | |
| CN107656086A (en) | A kind of nuclear power station main pump tach signal monitoring system and method | |
| CN206193262U (en) | Portable nuclear magnetic resonance noise collection system | |
| CN106248240B (en) | A kind of temperature transmitter with temperature-compensating | |
| CN115165684A (en) | An electromagnetic on-line monitoring device for oil and abrasive particles | |
| CN106405138A (en) | Novel rotating speed measuring meter | |
| CN206208193U (en) | When gating angular displacement sensor preposing signal process circuit | |
| CN210604504U (en) | Online quality detection device for steel wire rope production | |
| CN210400477U (en) | Precession vortex flowmeter | |
| CN103529241A (en) | Interface circuit for acceleration sensor | |
| CN106989793B (en) | Sampling circuit and detection device | |
| CN203164158U (en) | Damage detection device for steel tube | |
| CN106289451A (en) | Merogenesis condenser type Low Temperature Liquid bit changer | |
| CN205403897U (en) | Oil field crude oil level sensor detection circuitry | |
| CN110098590A (en) | It is a kind of to be spaced apart circuit with metering and the integrated intelligent of defencive function | |
| CN109915739B (en) | Submarine pipeline leakage detection system based on jetting noise | |
| CN109269579A (en) | A kind of essential safety turbine signal deteching circuit and implementation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |
|
| RJ01 | Rejection of invention patent application after publication |