CN201126406Y - Acceleration experimental device - Google Patents
Acceleration experimental device Download PDFInfo
- Publication number
- CN201126406Y CN201126406Y CNU2007200819333U CN200720081933U CN201126406Y CN 201126406 Y CN201126406 Y CN 201126406Y CN U2007200819333 U CNU2007200819333 U CN U2007200819333U CN 200720081933 U CN200720081933 U CN 200720081933U CN 201126406 Y CN201126406 Y CN 201126406Y
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- CN
- China
- Prior art keywords
- single chip
- display device
- support arm
- motor
- test device
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- Expired - Fee Related
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Abstract
The utility model discloses an acceleration test device, comprising a metal shell and a display device, and a rotary mechanism driven by a motor and a test device. The test device between the display device and motor driving device comprises a voltage controlled oscillator and a frequency dividing circuit connected with the voltage controlled oscillator, and two single chip circuits for lowering the frequency of the high frequency signal generated by oscillator through the frequency dividing circuit, wherein one circuit uses a pulse signal processing single chip circuit to perform the subdivision treatment to generate pulse signal required by the step motor and the driving device makes the step motor drive the rotary mechanism to generate centrifugal acceleration, another circuit transfers the feedback signal to the voltage controlled oscillator to perform accurate feedback control and sends the data signal to the data processing single chip circuit in order to be tested by the display device. The utility model rapidly supplies the digitally-displayed motor velocity change detection data to the display device by simple data conversion and the obtained acceleration value is accurate and reliable.
Description
Technical field
The utility model relates to a kind of device that constant centrifugal acceleration environment is provided.Be applicable to detecting instrument instrumentation device of operate as normal whether under specified centrifugal constant acceleration environment.
Background technology
At present, whether operate as normal needs the complicated centrifugal acceleration test device of a cover under specified centrifugal constant acceleration environment the detecting instrument instrument.The main structure of this device is by alternating current generator, and rotating mechanism and test macro constitute.Test macro is by photoelectric receiving arrangement, amplifying circuit, and counter, digital tube display device constitutes.Instrument and meter is fixed in the rotating mechanism, and the rotation of alternating current generator driven rotary mechanism produces centrifugal acceleration, change motor speed into electric signal by photoelectric receiving arrangement, deliver to amplifying circuit and carry out signal Processing, deliver to counter and count, charactron shows to be read.Thereby obtain the motor speed value,, obtain the accekeration that needs through data-switching.
The utility model content
Because legacy test system adopts the photoelectric velocity measurement mode, is operated in the comparison rugged environment, changed greatly by environmental factor, the data error of obtaining is bigger, in case stopping up appears in the photoelectricity path, the data that obtain will be misdatas.
For overcoming the problems referred to above that exist in the existing acceleration test device, the utility model provides a kind of motor speed that can accurately detect rapidly to change, and by simple data conversion, obtains the acceleration test device of required accurate accekeration.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of acceleration test device, comprise, metal housing and display device, and by the rotating mechanism and the proving installation of driven by motor, it is characterized in that, the proving installation that is connected between display device and the motor driver comprises, voltage controlled oscillator and the frequency dividing circuit that is connected, and the high-frequency signal that oscillator produces is carried out down conversion process through frequency dividing circuit, be divided into pulse signal processing single chip circuit and data processing single chip circuit that two-way connects, wherein, the pulse signal processing single chip circuit that connects of leading up to carries out Subdividing Processing generation stepper motor required pulse signal, make the rotation of stepper motor driven rotary mechanism produce centrifugal acceleration through over-driving device, another road is as feedback signal, be back to voltage controlled oscillator and carry out accurate FEEDBACK CONTROL, and send into the data processing single chip circuit for the display device test data as data-signal.
The utility model has following beneficial effect than prior art.
Adopt high frequency and the high voltage controlled oscillator of degree of stability in the utility model control device, guaranteed the high precision of the initialize signal that stepper motor is required, through the multistage frequency division of frequency dividing circuit, and, improved the degree of stability and the precision of signal through the single chip circuit Subdividing Processing.Can make stepper motor obtain needed high stability signal, guarantee the accurate Linear Control of stepper motor and reliable and stable operation.Adopt to increase the proving installation of the two unification electronic circuit of control device, increased the convenience of control and obtaining easily of data, make the utility model apparatus structure compactness, simple to operate, convenient, control is reliable, obtain data accurately, directly perceived.And can be by simple data conversion, the motor speed change-detection data of supplying with the display device digital display after treatment are rapid, and the accekeration that obtains is accurately and reliably.Wherein, the stepper motor that propulsion system adopt has overcome alternating current generator speed instability, also is difficult for the accurately weak point of control.
Description of drawings
In order to further specify rather than limit above-mentioned implementation of the present utility model, below in conjunction with drawings and Examples the utility model is further specified, but therefore the utility model is not limited within the described practical range.All these designs should be considered as disclosed content of present technique and protection domain of the present utility model.
Fig. 1 is the longitudinal profile organigram that the utility model has partial view.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is a control principle structural drawing of the present utility model.
Among Fig. 1,1. metal housing, 2. pillar, 3. motor fixing plate, 4. support arm rotating shaft, 5. stepper motor, 6. rotation support arm, 7. instrument geometrical clamp.
Among Fig. 2,1. metal housing, 2. pillar, 3. motor fixing plate, 4. support arm rotating shaft, 5. stepper motor, 6. rotation support arm, 7. instrument geometrical clamp, 8. base, 9. motor power cable interface.
Embodiment
Describe the details and the working condition of the utility model acceleration test device in detail below in conjunction with accompanying drawing.
Fig. 1, Fig. 2 have described a most preferred embodiment of the utility model acceleration test device.Wherein, the stepper motor 5 with stepper motor replacement prior art alternating current generator propulsion system installs and fixes on the base 8.Stepper motor 5 connects firmly on the fixed head 3 of metal housing 1 lower surface by upwardly extending pillar 2.Stepper motor 5 is connected between base 8 and the metal housing 1 by fixed head 3.The rotating mechanism that is contained in metal housing 1 middle part links to each other with stepper motor 5 main shafts by its support arm rotating shaft 4.The rotation support arm 6 that connects firmly in the support arm rotating shaft radially extends along metal housing 1, is fixed in the support arm rotating shaft 4 by the mounting hole in the support arm rotating shaft 4, and forming with support arm rotating shaft 4 is the symmetrical rotating mechanism at center.Instrument geometrical clamp 7 symmetries are positioned at the two ends of rotation support arm 6.The instrument firm fixation that need carry out testing under the rated acceleration condition is installed on the instrument geometrical clamp 7.Control device is implemented rotating speed control, is tested and obtain the correlation technique data by 9 pairs of motors of motor power cable interface.
In Fig. 3, the high-frequency signal of the high stability that voltage controlled oscillator produces, be sent to and carry out down conversion process in the frequency dividing circuit, further improve stability, the one road supplies with the drive unit of stepper motor, carries out Subdividing Processing by the pulse signal processing single chip circuit of drive unit, produce the required pulse signal of stepper motor, through the control action of over-driving device, make the rotation of stepper motor driven rotary mechanism again, produce centrifugal acceleration.The frequency of control voltage controlled oscillator gets final product the rotational speed of control step motor, thereby controls the size of acceleration.Another road is back to the voltage controlled oscillator part as feedback signal, carries out accurate FEEDBACK CONTROL, and sends into the data processing single chip circuit as data-signal, after treatment, offers display device, obtains the data that need.
Frequency dividing circuit among the figure can be general general frequency divider.This frequency divider mainly is made up of digital counter.Described single-chip microcomputer can be general general single-chip microcomputer, as C51 series, comprises compatible family or pic chip etc., and what this example adopted is the C51 chip, also can adopt signal processor (DSP) chip.Even can adopt the general-purpose computer system to finish.What present embodiment adopted is the voltage controlled oscillator of high stability, and 4017 counters and peripheral circuit are formed the frequency division treatment circuit.Also can adopt special-purpose frequency divider integrated circuit.
Claims (5)
1. acceleration test device, comprise, metal housing and display device, and by the rotating mechanism and the proving installation of driven by motor, it is characterized in that, the proving installation that is connected between display device and the motor driver comprises, voltage controlled oscillator and the frequency dividing circuit that is connected, and the high-frequency signal that oscillator produces is carried out down conversion process through frequency dividing circuit, be divided into pulse signal processing single chip circuit and data processing single chip circuit that two-way connects, wherein, the pulse signal processing single chip circuit that connects of leading up to carries out Subdividing Processing generation stepper motor required pulse signal, make the rotation of stepper motor driven rotary mechanism produce centrifugal acceleration through over-driving device, another road is as feedback signal, be back to voltage controlled oscillator and carry out accurate FEEDBACK CONTROL, and send into the data processing single chip circuit for the display device test data as data-signal.
2. acceleration test device according to claim 1 is characterized in that, described motor is stepper motor (5).
3. acceleration test device according to claim 1 and 2, it is characterized in that, stepper motor (5) connects firmly on the fixed head (3) of metal housing (1) lower surface by upwardly extending pillar (2), and is connected between base (8) and the metal housing (1).
4. acceleration test device according to claim 1 is characterized in that, the rotating mechanism that is contained in metal housing (1) middle part links to each other with stepper motor (5) main shaft by its support arm rotating shaft (4).
5. acceleration test device according to claim 1, it is characterized in that, the rotation support arm (6) that connects firmly in the support arm rotating shaft radially extends along metal housing (1), be fixed in the support arm rotating shaft (4) by the mounting hole in the support arm rotating shaft (4), forming with support arm rotating shaft (4) is the symmetrical rotating mechanism at center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200819333U CN201126406Y (en) | 2007-11-15 | 2007-11-15 | Acceleration experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200819333U CN201126406Y (en) | 2007-11-15 | 2007-11-15 | Acceleration experimental device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201126406Y true CN201126406Y (en) | 2008-10-01 |
Family
ID=39999874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200819333U Expired - Fee Related CN201126406Y (en) | 2007-11-15 | 2007-11-15 | Acceleration experimental device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201126406Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938149A (en) * | 2016-06-24 | 2016-09-14 | 南京理工大学 | Acceleration sensor-based acceleration recorder calibration device and method |
| CN109285613A (en) * | 2018-09-13 | 2019-01-29 | 中国核动力研究设计院 | The method of reactor pressure vessel vibration monitoring |
-
2007
- 2007-11-15 CN CNU2007200819333U patent/CN201126406Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938149A (en) * | 2016-06-24 | 2016-09-14 | 南京理工大学 | Acceleration sensor-based acceleration recorder calibration device and method |
| CN105938149B (en) * | 2016-06-24 | 2019-04-16 | 南京理工大学 | A kind of accelerograph calibrating installation and method based on acceleration transducer |
| CN109285613A (en) * | 2018-09-13 | 2019-01-29 | 中国核动力研究设计院 | The method of reactor pressure vessel vibration monitoring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081001 Termination date: 20151115 |
|
| EXPY | Termination of patent right or utility model |