CN102062679A - Measurement method of movement locus and inverting time of spherical rotor - Google Patents
Measurement method of movement locus and inverting time of spherical rotor Download PDFInfo
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- CN102062679A CN102062679A CN 201010542735 CN201010542735A CN102062679A CN 102062679 A CN102062679 A CN 102062679A CN 201010542735 CN201010542735 CN 201010542735 CN 201010542735 A CN201010542735 A CN 201010542735A CN 102062679 A CN102062679 A CN 102062679A
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Abstract
The invention discloses a measurement method of the movement locus and the inverting time of a spherical rotor, aiming to measure the movement locus and the inverting time of a spherical rotor at the same time. According to the interface structure of a centrifugal machine, a base is designed with the measurement method; a chamber for placing the spherical rotor and other parts is arranged in the base; the spherical rotor is provided with a through hole for installing a detonator, and magnetic material having same quality with the detonator is put into the through hole; three magnetic sensors installed on bracket installing points are arranged around the spherical rotor; the sphere center of the spherical rotor serves as the origin of coordinate, and distance between the origin of coordinate and all installing points is equal; and the origin of coordinate is vertical to three ligatures of the installing points. The inverting time of the spherical rotor is measured by measuring the positions of two switches when the spherical rotor starts and stops so as to control the illumination time of a light emitting diode; the light emitting diode is also provided with a magnetic proximity switch; voltage reduction displayed on an oscilloscope means a movement end point; and a time interval showing high voltage on the oscilloscope means the inverting time of the spherical rotor.
Description
Technical field
The present invention relates to a kind of space motion path of lab investigation ball rotor and measuring method of the time of becoming a full member of being used for.
Background technology
In ball rotor design at present, the space motion path of lab investigation ball rotor is the important means that can research ball rotor reliably become a full member and estimate arm time with the time of becoming a full member, the method of existing measurement ball rotor space movement locus has picture method of loci and laser marking method: drawing method of loci is that paintbrush is placed in the aperture of ball rotor chamber upper end, nib is pressed touch the ball rotor; When the ball rotor began to do to become a full member motion with respect to its chamber under rotation status, paintbrush was at the ball rotor surface track that draws.The shortcoming that adopts this method must be guaranteed to be positioned on the turning axle of hydro-extractor for the contact point of paintbrush and ball rotor in the test, otherwise the ball rotor motion track of gained will distortion, if paintbrush not on turning axle, can cause the erroneous judgement to experimental result.The tight moment of friction that has increased the ball rotor that contacts of paintbrush and ball rotor has changed its moving condition and state in addition.Not have measurement owing to drawing movement locus that the trajectory tests device just depicted the ball rotor, so can't judge the time of becoming a full member of ball rotor and its motion is demarcated the time of becoming a full member.Utilize laser marking machine can under the condition of not introducing external force, realize sign to its movement locus in the method for indentation on the ball rotor surface, because the mark live width and the mark degree of depth are all very little, so can ignore to the quality of ball rotor and the influence of moment of inertia.The trajectory of getting can reflect the characteristics of motion of ball rotor under the trajectory environmental baseline basically strictly according to the facts.But the laser marking machine cost is higher, has restricted its popularization and application.Secondly, though laser marking machine can be to the sign of ball rotor mark realization to its movement locus, the just strip metal indentation that experiment obtains, and can't obtain time parameter, both can't demarcate the movement locus of ball rotor.And some motion special case its also can't show, do lasting the rotation when constantly the rotating shaft of ball rotor overlaps with the bullet axle as certain, can't show its motion on the indentation.
Summary of the invention
The present invention seeks to overcome the deficiency of above-mentioned prior art, provide a kind of can measure ball rotor motion track and run duration and test ball rotor motion simultaneously the time some peculair motions, analyze each constantly ball rotor motion state ball rotor space movement locus with become a full member Method Of Time Measurement.
The spatial movement of laboratory simulation ball rotor generally adopts hydro-extractor to realize the high speed rotating of centrifuge modelling bullet.The ball rotor is as a kind of flame proof mechanism, and general needs are opened a through hole detonator is installed.The present invention realizes by following scheme:
(1) according to base of interface structure design of the used hydro-extractor of simulated experiment, base is a right cylinder, and base inside is provided with a chamber of placing ball rotor and other parts, and base by thread or alternate manner are connected with hydro-extractor;
(2) have the through hole of an installation detonator on the ball rotor, select for use the magnetic material of equal quality to be installed in this through hole; Quality that on the one hand can equivalent detonator, on the other hand, also together rotation of magnetic material during the rotation of ball rotor will cause that the field strength vector that magnetic material produces changes;
(3) arrange array of magnetic sensors at the ball peritrochanteric, array is made up of three Magnetic Sensors; Three Magnetic Sensors are installed on the settlement on the sensor stand; With the ball rotor centre of sphere is true origin, and each settlement equates that apart from the distance of true origin the settlement is apart from 40 centimetres of the initial points; Three lines of true origin and settlement are orthogonal; Each Magnetic Sensor detects the field strength vector of magnetic material in continuous conversion during the rotation of ball rotor, measured value according to field intensity on each each Magnetic Sensor of moment, the three dimensional change curve of match field intensity vector, curve are ball rotor that movement locus on the field intensity direction vector of magnetic material;
The fluorescent lifetime of two switchgears control light emitting diodes during (4) by measurement ball rotor startup and termination is measured becoming a full member the time of ball rotor; For making things convenient for some start-up time of test ball rotor, utilize centrifugal son and centrifugal sub-spring as ball rotor startup K switch 1, when hydro-extractor reaches certain rotating speed, centrifugal son overcomes the drag of centrifugal sub-spring under centrifugal action, releasing is to the insurance of ball rotor, and after moving behind the centrifugal son, K switch 1 is opened, the circuit of control lumination of light emitting diode is connected, and the light emitting diode that is installed on the shell begins luminous; On that settlement on the vertical hydro-extractor of support plane, photoresistance is installed, photoresistance is under rayed, be installed in the circuit connection that the control light source on the settlement receives, voltage with the resistance in the oscillograph test circuit, oscillograph can see that ohmically voltage raises, and is the start-up point of ball rotor this moment;
(5) at installation light emitting diode place magnet proximity switch is installed also, when the ball rotor is become a full member, the magnetic field intensity maximum that magnet proximity switch is experienced, magnet proximity switch is opened, be that short circuiting switch K2 closes, light emitting diode stops luminous, and the voltage that shows on the oscillograph descends, and is the terminating point of ball rotor motion this moment; That a period of time that the voltage that shows on the oscillograph is high is becoming a full member the time of ball rotor.
The signal that oscillograph shows can determine that the startup moment of ball rotor and motion put in place constantly, and the path curves of ball rotor is compared with the run duration of ball rotor and can be analyzed each motion state of ball rotor constantly.
Test macro adopts magnetic and light two cover systems to compose in parallel.The magnetic detection system adds a magnetic material on tested ball rotor, magnetic field changes during rotation, is the former heart with the ball rotor centre of sphere, at X, Y, Magnetic Sensor of each equidistant installation on the Z axle is by measuring movement locus that each goes up the anti-rotor of pushing the ball of variation of magnetic field intensity.Optical detection system is selected two test points in the ball rotor-support-foundation system, first point is the starting point of ball rotor motion, when centrifugal subsolution is removed restriction to the ball rotor, be equivalent to K switch 1 and open, light emitting diode begins luminous, second test point is for after the ball rotor becomes a full member, be installed in the magnet proximity switch in the circuit because magnetic field becomes big, K switch 2 closures, light emitting diode is by short circuit, stop luminously, use oscillograph and measure the time of lumination of light emitting diode and be the ball rotor motion time.
The present invention's chamber test by experiment determines the space motion path of ball rotor and becomes a full member the time, calculates the extension arming distance that the ball rotor can provide by the time of becoming a full member, and makes things convenient for the researchist to grasp the kinetic characteristic of ball rotor.Adopt breadboard simulation test means, motion process that can true reappearance ball rotor, testing expenses are cheap.The present invention compared with prior art can measure the movement locus and the run duration of ball rotor simultaneously, and test macro is to the not influence of movement locus of ball rotor; Some peculair motions in the time of can be with the ball rotor motion test out, when overlapping with the bullet axle as the ball rotor shaft; Can analyze each motion state of ball rotor constantly.
Description of drawings
Fig. 1 is the proving installation structural representation;
Fig. 2 is the structural representation of cylindric support;
Fig. 3 is a ball rotor motion time test device control illuminating circuit schematic diagram;
Fig. 4 is that the control of ball rotor motion time test device receives the optical circuit schematic diagram.
Among the figure: 1, binding post, 2, centrifugal son, 3, centrifugal spring, 4, nut, 5, binding post, 6, magnet proximity switch, 7, chamber, 8, the ball rotor, 9, magnetic material, 10, base, 11, ball seat, 12, screw, 13, pin, 14, hydro-extractor, 15, circuit settlement I, 16, circuit settlement II, 17, oscillograph.
Embodiment
Base (10) is connected with hydro-extractor (14) by screw thread, ball rotor (8) is placed in chamber (7) and the ball seat (11), chamber (7) connects together by screw (12) with ball seat (11), ball seat (11) connects together by pin (13) and base (10), place magnetic material (9) in the ball rotor (8), ball rotor (8) is limited by centrifugal son (2), centrifugal sub-spring (3) is installed in centrifugal son (2) back, binding post (1) contacts with centrifugal son (2) at ordinary times, nut (4) is installed in centrifugal sub-spring (3) back, and magnet proximity switch (6) and light emitting diode are installed on the Z axle.The center of circuit settlement I (15) is on Z-direction, and the center of circuit settlement II (16) is on X-direction, and the center of another circuit settlement is on Y direction.Oscillograph (17) is connected in parallel on the resistance R 3.Three Magnetic Sensors are installed on the cylindric support; Three sensor settlements are set on support.
The movement locus of test ball rotor and run duration, at first the test macro with ball rotor rotation track is fixed on the hydro-extractor (14), after the test beginning, hydro-extractor (14) begins rotation, owing to be subjected to action of centrifugal force, centrifugal son (2) is moved by action of centrifugal force backward, after hydro-extractor (14) arrives certain rotating speed, centrifugal son (2) has overcome the drag of centrifugal spring (3), removed insurance fully to ball rotor (8), this moment, test macro no longer contacted with binding post (5) owing to centrifugal son (2), the starting switch K1 that promptly represents in the circuit diagram of proving installation opens, LED begins luminous, and ball rotor this moment (8) begins to do the space fixed point and rotates; Under the irradiation of LED, photoresistance RL resistance diminishes, circuit turn-on, and oscillograph (17) shows high level; Ball rotor (8) is when rotating, the hole axle of ball rotor (8) and three coordinate axis angulations change constantly, the magnetic induction density component of magnetic field on each change in coordinate axis direction that its inner magnetic material (9) forms also is to change constantly, under the effect of variation magnetic field, X, Y, each Magnetic Sensor on the Z axle can produce corresponding induction electromotive force, this induction electromotive force is distributed on X after amplifying circuit amplifies, Y, the cover of three on Z axle magnetic indicator loop record; When ball rotor (8) motion puts in place, because magnetic field becomes big on Z-direction, magnet proximity switch (6) is opened, and thinks short circuiting switch K2 closure in the circuit diagram of proving installation, and circuit is by short circuit, LED stops luminous, it is big that photoresistance RL resistance becomes, circuitry cuts, and oscillograph (17) shows low level, the high level time of oscillograph (17) record is the working time of light emitting diode, also is the time that ball rotor (8) rotates.
Track by the anti-rotor of pushing the ball of the measured signal of magnetic detection system, there is one or more sensor to detect in the middle of three Magnetic Sensors to think when magnetic field begins to change the ball rotor to begin to rotate, thinks when changing that ball rotor (8) has moved and put in place when three Magnetic Sensors all can not detect magnetic field.
Need be when light detection device and magnetic indicator loop are installed according to the concrete structure of hydro-extractor, design a support, guarantee the proving installation installed quadrature spatially by support, simultaneously light emitting diode is installed in the rotating shaft of hydro-extractor as far as possible, guarantees when luminous easily to the photoresistance generation effect in the light detection device.
Claims (2)
1. the measuring method of a ball rotor space movement locus and the time of becoming a full member is characterized in that:
(1) according to base of interface structure design of the used hydro-extractor of simulated experiment, base is a right cylinder, and base inside is provided with a chamber of placing ball rotor and other parts, and base by thread is connected with hydro-extractor;
(2) have the through hole of an installation detonator on the ball rotor, select for use the magnetic material with the detonator equal quality to be installed in this through hole;
(3) arrange array of magnetic sensors at the ball peritrochanteric, array is made up of three Magnetic Sensors; Three Magnetic Sensors are installed on the settlement on the sensor stand; With the ball rotor centre of sphere is true origin, and each settlement equates apart from the distance of true origin; Three lines of true origin and settlement are orthogonal; Each Magnetic Sensor detects the field strength vector of magnetic material in continuous conversion during the rotation of ball rotor, measured value according to field intensity on each each Magnetic Sensor of moment, the three dimensional change curve of match field intensity vector, curve are ball rotor that movement locus on the field intensity direction vector of magnetic material;
The fluorescent lifetime of two switchgears control light emitting diodes during (4) by measurement ball rotor startup and termination is measured becoming a full member the time of ball rotor; For making things convenient for some start-up time of test ball rotor, utilize centrifugal son and centrifugal sub-spring K switch 1 as the ball rotor startup, when hydro-extractor reaches certain rotating speed, centrifugal son overcomes the drag of centrifugal sub-spring under centrifugal action, releasing is to the insurance of ball rotor, and after moving behind the centrifugal son, K switch 1 is opened, the circuit of control lumination of light emitting diode is connected, and the light emitting diode that is installed on the shell begins luminous; On that settlement on the vertical hydro-extractor of support plane, photoresistance is installed, photoresistance is under rayed, be installed in the circuit connection that the control light source on the settlement receives, voltage with the resistance in the oscillograph test circuit, oscillograph can see that ohmically voltage raises, and is the start-up point of ball rotor this moment;
(5) at installation light emitting diode place magnet proximity switch is installed also, when the ball rotor is become a full member, the magnetic field intensity maximum that magnet proximity switch is experienced, magnet proximity switch is opened, be that short circuiting switch K2 closes, light emitting diode stops luminous, and the voltage that shows on the oscillograph descends, and is the terminating point of ball rotor motion this moment; That a period of time that the voltage that shows on the oscillograph is high is becoming a full member the time of ball rotor.
2. the measuring method of the ball rotor space movement locus as claimed in claim 1 and the time of becoming a full member is characterized in that sensor stand is cylindric, and the settlement is apart from 40 centimetres of the initial points on the support.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105427359A CN102062679B (en) | 2010-11-11 | 2010-11-11 | Measurement method of movement locus and inverting time of spherical rotor |
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| CN2010105427359A CN102062679B (en) | 2010-11-11 | 2010-11-11 | Measurement method of movement locus and inverting time of spherical rotor |
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| CN102062679A true CN102062679A (en) | 2011-05-18 |
| CN102062679B CN102062679B (en) | 2012-06-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932191A (en) * | 2017-04-14 | 2017-07-07 | 中州大学 | A kind of rotor three dimensions orbit of shaft center method of purification and device |
| CN108444872A (en) * | 2018-02-11 | 2018-08-24 | 上海理工大学 | The measuring device and method of spherical particle stream particle motion state |
| CN109032069A (en) * | 2018-07-19 | 2018-12-18 | 西南交通大学 | A kind of contactless R-test measuring instrument sphere centre coordinate calculation method using eddy current displacement sensor |
| CN109238677A (en) * | 2018-09-20 | 2019-01-18 | 中北大学 | A kind of laboratory testing method of the ball rotor track based on piezoelectric membrane |
| CN113899265A (en) * | 2021-10-12 | 2022-01-07 | 西安现代控制技术研究所 | Folding rudder wing opening time measuring device based on photoelectric element |
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| CN101113896A (en) * | 2007-08-06 | 2008-01-30 | 中国科学院电工研究所 | Magnetic suspension device used for measuring spherical spinner pole axis deflection angle and measurement method thereof |
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2010
- 2010-11-11 CN CN2010105427359A patent/CN102062679B/en not_active Expired - Fee Related
Patent Citations (5)
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| US4193297A (en) * | 1963-07-31 | 1980-03-18 | Us Navy | Infrared fuze test simulator |
| WO2000025145A1 (en) * | 1998-10-26 | 2000-05-04 | Hitachi, Ltd. | Method for analyzing an electromagnetic field of a rotating machine and device for analyzing an electromagnetic field |
| CN101113896A (en) * | 2007-08-06 | 2008-01-30 | 中国科学院电工研究所 | Magnetic suspension device used for measuring spherical spinner pole axis deflection angle and measurement method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932191A (en) * | 2017-04-14 | 2017-07-07 | 中州大学 | A kind of rotor three dimensions orbit of shaft center method of purification and device |
| CN106932191B (en) * | 2017-04-14 | 2019-08-16 | 中州大学 | A kind of rotor three-dimensional space orbit of shaft center method of purification and device |
| CN108444872A (en) * | 2018-02-11 | 2018-08-24 | 上海理工大学 | The measuring device and method of spherical particle stream particle motion state |
| CN109032069A (en) * | 2018-07-19 | 2018-12-18 | 西南交通大学 | A kind of contactless R-test measuring instrument sphere centre coordinate calculation method using eddy current displacement sensor |
| CN109032069B (en) * | 2018-07-19 | 2020-11-03 | 西南交通大学 | Non-contact R-test measuring instrument sphere center coordinate calculation method adopting eddy current displacement sensor |
| CN109238677A (en) * | 2018-09-20 | 2019-01-18 | 中北大学 | A kind of laboratory testing method of the ball rotor track based on piezoelectric membrane |
| CN109238677B (en) * | 2018-09-20 | 2020-04-17 | 中北大学 | Laboratory testing method for ball rotor track based on piezoelectric film |
| CN113899265A (en) * | 2021-10-12 | 2022-01-07 | 西安现代控制技术研究所 | Folding rudder wing opening time measuring device based on photoelectric element |
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| CN102062679B (en) | 2012-06-06 |
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Granted publication date: 20120606 Termination date: 20121111 |