CN102928119A - Method for transmitting temperature difference of high-velocity motion body - Google Patents
Method for transmitting temperature difference of high-velocity motion body Download PDFInfo
- Publication number
- CN102928119A CN102928119A CN201210487787XA CN201210487787A CN102928119A CN 102928119 A CN102928119 A CN 102928119A CN 201210487787X A CN201210487787X A CN 201210487787XA CN 201210487787 A CN201210487787 A CN 201210487787A CN 102928119 A CN102928119 A CN 102928119A
- Authority
- CN
- China
- Prior art keywords
- output
- motion body
- temperature difference
- frequency converter
- phase inverter
- 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
Images
Landscapes
- Inverter Devices (AREA)
Abstract
The invention discloses a method for transmitting temperature difference of a high-velocity motion body. The method comprises a temperature measuring and voltage frequency converter V/F and a phase inverter F. A method for transmitting temperature difference of a high-velocity motion body is realized, and the method has the characteristics of high precision and strong interference resistance capability.
Description
Technical field
The invention belongs to the mechanical fault diagnosis field, relate in particular to the temperature difference delivering method of a kind of high-speed motion body in the high-speed motion measurement.
Background technology
In the mechanical fault diagnosis process, the temperature survey of high-speed motion body is a very important parameter, the blind controller system of large power generating equipment is generally at far-end, the transmission of the temperature of high-speed motion body is being carried out in the interference environment greatly at a distance, and how simple, reliable, stable remote transmission tach signal is a difficult problem.
Summary of the invention
The object of the present invention is to provide a kind of temperature difference delivering method of high-speed motion body, have precision high, the characteristics that antijamming capability is strong.
The technical scheme that realizes above-mentioned purpose is: a kind of temperature difference delivering method of high-speed motion body comprises temperature survey, voltage to frequency converter V/F and phase inverter F;
The input end of described voltage to frequency converter V/F connects described temperature survey output Vt, the output Ft of described voltage to frequency converter V/F is as direct difference positive output F+, and be connected with described phase inverter F, described phase inverter F output is as direct difference negative output F-.
Above-mentioned voltage to frequency converter V/F converts above-mentioned temperature survey output Vt to frequency signal Ft, and conversion formula is Ft=K*Vt, and K is the conversion factor constant.
The invention has the beneficial effects as follows: realize a kind of temperature difference delivering method of high-speed motion body, have precision high, the characteristics that antijamming capability is strong.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Please refer to Fig. 1, provided a kind of temperature difference delivering method of high-speed motion body among the figure, wherein temperature survey adopts AD581, voltage to frequency converter V/F to adopt VFC302, and phase inverter F adopts 74HC00;
The input end of VFC302 connects the Vt that AD581 exports, and the output Ft conduct of VFC302 is difference positive output F+ directly, and is connected with 74HC00, and 74HC00 output is as direct difference negative output F-.
VFC302 converts the Vt of AD581 output to frequency signal Ft, and conversion formula is Ft=K*Vt, and K is the conversion factor constant, K=1, Ft=Vt.
Principle of the present invention is: the simulation quantitative change has become digital quantity after utilizing the electric voltage frequency conversion, forward, reverse digital signal are exported synchronously, increased the transmission signal to noise ratio (S/N ratio), realize a kind of temperature difference delivering method of high-speed motion body, has precision high, the characteristics that antijamming capability is strong.
Below embodiment has been described in detail the present invention by reference to the accompanying drawings, and those skilled in the art can make the many variations example to the present invention according to the above description.Thereby some details among the embodiment should not consist of limitation of the invention, and the scope that the present invention will define with appended claims is as protection scope of the present invention.
Claims (2)
1. the temperature difference delivering method of a high-speed motion body is characterized in that, comprises temperature survey, voltage to frequency converter V/F and phase inverter F;
The input end of described voltage to frequency converter V/F connects described temperature survey output Vt, the output Ft of described voltage to frequency converter V/F is as direct difference positive output F+, and be connected with described phase inverter F, described phase inverter F output is as direct difference negative output F-.
2. the temperature difference delivering method of a kind of high-speed motion body according to claim 1, it is characterized in that, described voltage to frequency converter V/F converts described temperature survey output Vt to frequency signal Ft, and conversion formula is Ft=K*Vt, and K is the conversion factor constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210487787XA CN102928119A (en) | 2012-11-26 | 2012-11-26 | Method for transmitting temperature difference of high-velocity motion body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210487787XA CN102928119A (en) | 2012-11-26 | 2012-11-26 | Method for transmitting temperature difference of high-velocity motion body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102928119A true CN102928119A (en) | 2013-02-13 |
Family
ID=47642974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210487787XA Pending CN102928119A (en) | 2012-11-26 | 2012-11-26 | Method for transmitting temperature difference of high-velocity motion body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102928119A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344358A (en) * | 2013-05-06 | 2013-10-09 | 华中科技大学 | Low-temperature fine metal wire non-contact temperature measuring method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2062442U (en) * | 1990-02-24 | 1990-09-19 | 东南大学 | Eight-way measuring and eight-way circulation temp. measuring display |
| DE19609579A1 (en) * | 1996-03-12 | 1997-09-18 | Bosch Gmbh Robert | System determining throughput of flowing medium with substrate exposed to medium |
| CN1691509A (en) * | 2004-04-28 | 2005-11-02 | 精工爱普生株式会社 | Differential current mode phase/frequency detector circuit |
| JP2009175032A (en) * | 2008-01-25 | 2009-08-06 | Sharp Corp | Temperature detection circuit and video device incorporating same |
-
2012
- 2012-11-26 CN CN201210487787XA patent/CN102928119A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2062442U (en) * | 1990-02-24 | 1990-09-19 | 东南大学 | Eight-way measuring and eight-way circulation temp. measuring display |
| DE19609579A1 (en) * | 1996-03-12 | 1997-09-18 | Bosch Gmbh Robert | System determining throughput of flowing medium with substrate exposed to medium |
| CN1691509A (en) * | 2004-04-28 | 2005-11-02 | 精工爱普生株式会社 | Differential current mode phase/frequency detector circuit |
| JP2009175032A (en) * | 2008-01-25 | 2009-08-06 | Sharp Corp | Temperature detection circuit and video device incorporating same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344358A (en) * | 2013-05-06 | 2013-10-09 | 华中科技大学 | Low-temperature fine metal wire non-contact temperature measuring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103697802A (en) | Magnetostriction displacement sensor based on single chip solution | |
| CN104639094A (en) | Filtering circuit | |
| CN101692599B (en) | Impedance matching control (IMC) method of maximum power point tracking (MPPT) for photovoltaic power generation system | |
| CN101949972A (en) | Current measurement device for high-voltage converter | |
| CN102928119A (en) | Method for transmitting temperature difference of high-velocity motion body | |
| CN103869144A (en) | Isolation voltage sampling circuit | |
| CN204349936U (en) | A kind of filter circuit | |
| CN203772933U (en) | Isolation voltage sampling circuit | |
| CN203301361U (en) | Intelligent current and voltage isolated transmitter for photovoltaic grid-connected inverter | |
| CN203337725U (en) | Sampling circuit for network side phase voltage in grid connected photovoltaic inverter system | |
| CN203688649U (en) | Industrial three-phase isolation ammeter | |
| CN203337726U (en) | Voltage and current transmitter | |
| CN203025593U (en) | Current output circuit of two-wire system industrial instrument | |
| CN204241599U (en) | The testing circuit of static reacance generator | |
| CN203310906U (en) | Frequency converter voltage detection circuit | |
| CN201656764U (en) | Emi noise shielding device | |
| CN104022620A (en) | Wireless transmission | |
| CN203011937U (en) | Performance testing device for logging while drilling slurry pulser | |
| CN205248797U (en) | Primary control's device is carried out generator voltage signal | |
| CN204271702U (en) | Charger | |
| CN203883474U (en) | Active filtering device based on wireless sensing technology | |
| CN203492086U (en) | Signal transmission circuit for precisely synchronizing video monitoring signals | |
| CN203204068U (en) | Three phase active power transmitter | |
| CN204007497U (en) | The magnetostrictive displacement sensor of isolation pulse generating circuit | |
| CN203323793U (en) | Micro-motor integrated testing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130213 |