CN101123046B - An integrated demonstration experimental instrument for magnetic sensing sensor - Google Patents
An integrated demonstration experimental instrument for magnetic sensing sensor Download PDFInfo
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- CN101123046B CN101123046B CN2007101203573A CN200710120357A CN101123046B CN 101123046 B CN101123046 B CN 101123046B CN 2007101203573 A CN2007101203573 A CN 2007101203573A CN 200710120357 A CN200710120357 A CN 200710120357A CN 101123046 B CN101123046 B CN 101123046B
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Abstract
The invention discloses a comprehensive demonstration experiment instrument for magnetic sensitive sensors, and belongs to the field of instruments and meters. The invention in particular relates to a researching instruction demo instrument for revealing motor motion status simulation and digital open-loop detection and close-loop control properties through combining the magnet-sensitive sensor and the motor. The demo instrument consists of a casing, an angle sensor test system, a displacement test system, a motor close-loop test system, installation and test meters, a control keyboard, a front panel shifting between a switch and a wiring jack, and a wiring board with a single chip machine processing circuit. The instrument can give out a standard angle reading corresponding to rotation of the angle sensor shaft, accurately realize displacement measuring, and demonstrate how the motor rotation is converted to linear displacement. Through freely changing various spare parts of velocity sensors with different detection principles, the invention can be used for observing detection signal properties of various sensor parts and detection properties of gear velocity sensor products. The invention can be used for detecting properties of analogue output voltage signals proportional to the motor rotary speed, detecting charged current of the motor and researching the generated feedback voltage signal in close-loop power control.
Description
Technical field:
The invention belongs to instrument field.Be particularly related to magneto-dependent sensor principle and characteristic and show, and sensor combines the teaching demonstration instrument that discloses motor motion status simulation and digital open loop detection and closed-loop control characteristic research with motor.
Background technology:
The circulation of information, communication, computer technology is the general trend of 21 century development in science and technology with combining.Sensor technology is information pickup, signal transmission, realizes the crucial tie of robotization Detection ﹠ Controling, and the quality of sensor is largely determining the levels of precision of TT﹠C system.Magneto-dependent sensor is the yi that has particular feature in the sensor technical field, gif important branch, development along with contemporary science and technology, magnetosensitive sensing and detection technique become detection means very important in the modern information technologies, its application relates to the national economy various fields, belong to dynamo-electric yi, gif body basic device.The magneto-dependent sensor principal feature is to trigger magnetic field and the induction of magnet-sensitive element non-contact signal, has contactless, nothing wearing and tearing, no electrical noise, high sensitivity, high resolving power, characteristics such as high reliability, high duplication, sensor long service life.Utilize the sensor construction of magnet-sensitive element exploitation simple light and handy, applicable to multiple industrial rugged surroundings such as water, oil, vapour, dust, high low temperature, vibration, impacts, each main manufacturing process is easy to characteristics such as standardization control, ratio of performance to price excellence.Be specially adapted to the application that modern industry detects and controls automatically.
Magnetics is physical yi, gif important branch, and magnetic field detection and magnetic sensing technology are the important application and the developing direction of modern magnetics.Magnetosensitive sense material, device, the sub-technology of magnetoelectricity are being condensed many modern physics thoughts and basic effect, and the various forms of motion that will be associated with changes of magnetic field by different sensors are converted into electric signal output, are comprehensive new and high technologies interdisciplinary.How with scientific and technological cutting edge technology, physical thought is clear and definite, the demonstration effect is directly perceived, related close, the learning-oriented and innovative content combination of research with application technology of elementary teaching, be incorporated in big, middle school Fundamental Physics Experiments, lecture experiment or the Specialty Experiment, show the inner link that the forward position achievement of contemporary science and technology combines with physical principle substantially in directly perceived, the most lively mode.And in the physics experiment teaching of present each colleges and universities at home and abroad, the infrastest relevant with the magnetic detection technique almost is blank, has only the experiment of a few relevant Magnetic Sensor, but experiment content list yi, gif, comprehensive and the property studied is not strong, is badly in need of that content is novel is filled with the adapt infrastest of brand new ideas of contemporary science and technology development.
Summary of the invention
The objective of the invention is to design yi, gif platform magneto-dependent sensor characteristic research new teaching experimental apparatus, by the feature measurement of contactless angular transducer, slant angle sensor, micro-displacement sensor, tachogenerator, magnetic coder, current sensor, show with the magnetosensitive sense to be the attribute and the characteristics of switching mechanism series sensor.Sensor detecting and motor analog quantity, digital quantity are detected open loop detection and closed-loop control, organic this infrastest platform that incorporates of automation foundations such as speed closed loop, position closed loop, power closed loop experiment.
Yi, gif kind integrated demonstration experimental instrument for magnetic sensing sensor, by the demonstration test instrument cabinet, angular transducer measuring system, displacement test system, motor closed loop test system, the front panel of installation testing instrument, manipulation keyboard, change-over switch and patch jack, the wiring plate that has the single-chip microcomputer treatment circuit constitutes.
The basic function of demonstration test instrument of the present invention as shown in Figure 1, monnolithic case is shown in Fig. 2 photo.
The angular transducer measuring system comprises as shown in Figure 3: abase frame 1, fixedly EXT scale dish 2, interior index dial 3, angle measurement platform rotating shaft 4, fixed mount 5, slant angle sensor 6, top holding screw 7, angular transducer fixed mount 8, fixed screw 9, magnetosensitive angular transducer 10, fixed screw 11, magnetosensitive angular transducer rotating shaft 12, stop screw 13, holding screw 14.Fixedly EXT scale dish 2 with 360 ° of angle-differentiateds is fixed on the pedestal 1, have the interior index dial 3 of 2 vernier graduated scales being installed along 180 ° of symmetric positions of diameter respectively and be fastened on one heart in the angle measurement platform rotating shaft 4, rotating shaft is passed the hole that is slidingly matched and is installed in abase frame top.When rotating shaft when rotating with fixed mount, the registration that provides by inside and outside index dial can accurately provide the angle of relative commentaries on classics.At rotating shaft 4yi, the gif end is yi fixedly, gif slant angle sensor fixed mount 5, and circular slant angle sensor 6 is slidingly installed on fixed mount 5, by the relative position of top holding screw 7 constant tilt angle transducers.Angular transducer fixed mount 8 is by 3 fixed screws 9 and the rotating shaft 4 concentric yi in addition that are fixed on pedestal 1, gif side.Magnetosensitive angular transducer 10 is installed on the fixed mount 8 with one heart by 2 fixed screws 11.Angle measurement platform rotating shaft 4 yi is in addition inserted in magnetosensitive angular transducer rotating shaft 12 with one heart, and gif holds in the hole that is slidingly matched, and is fixing by stop screw 13.Respective angles standard registration in the time of can providing angular transducer rotating shaft rotation like this.The angular transducer measurement mechanism is fixed on the upper surface of demonstrator cabinet by 2 holding screws 14.
The micro-displacement sensor measuring system comprises as shown in Figure 4: milscale main scale 15, support 16, magnetosensitive micro-displacement sensor 17, screw 18, support 19, micro-displacement sensor shifting axle 20, holding screw 21, attachable mechanical stage 22; Milscale main scale 15 is fixed on the support 16, magnetosensitive micro-displacement sensor 17 is fixed on the support 19 by screw 18, distance between support 16 and the support 19 is determined by micro-displacement sensor shifting axle 20 and the position of milscale 15 in the useful range scope, is fixed on by holding screw 21 on the upper surface of demonstrator cabinet.When the milscale degrees wheel rotated, micro-displacement sensor shifting axle 20 to-and-fro movements that attachable mechanical stage 22 can promote to have elastic restoring force accurately realized displacement measurement.
In order to observe the characteristic of magnetosensitive gear tachogenerator, magnetic coder, utilize magneto-dependent sensor that the motor movement characteristic is studied simultaneously, the motor closed loop test system is as shown in Figure 5.Select bilateral axle dc brushless motor 23 for use, be anchored on the instrument upper surface by screw by motor fixing frame 24,25.At bilateral axle direct current generator 23yi, gif end, coaxial installation yi, gif magnetic coder 26, these magnetic coder output two-way 90 ° of phasic difference squares type square wave and per 360 ° of 1 pulse zero signals.The present invention is provided with 2 synchronous pulleys, wherein 1 synchronous pulley 27 is fixed on the yi in addition of motor 23, gif end output major axis is near motor side, other is yi, gif synchronous pulley 28 is fixed on the bearing seat 29 that contains bearing and rotating shaft, bearing seat will be with 30 and 2 synchronous pulley tensionings synchronously, be fixed on the experiment instrument upper surface by 2 screws 31, keep 2 synchronous pulley straight lines to connect.Can demonstrate motor thus and rotate the process that how to be transformed into straight-line displacement.
Be close to synchronous pulley 27, yi has been installed on motor shaft, gif permeability magnetic material gear 32, different sensitive elements, comprise telefault type, Hall effect type, current vortex type, semiconductor magnetic-sensing resistor type, Spin Valve giant magnetoresistance type, tunnel junction giant magnetoresistance type, magnetoimpedance type magnetosensitive gear tachogenerator 33, select yi, gif kind spare part is fixed on the T font fixed mount 34,2 holding screws 35 keep tachogenerators and magnetic conduction gear 32 at same yi fixed mount 34, and the gif bar is crossed the upper surface that is fixed on experiment instrument under the isocontour situation at center.This experiment can be by selecting to replace the different spare unit that detect the principle tachogenerator, the detection characteristic of observing different sensitive element detecting signal characteristics and finished product gear tachogenerator arbitrarily.
Flexible clutch 36yi, the gif end connects motor 23 major axis outermost end by fixed screw, yi in addition, the gif end is by the fixing small-sized tech-generator 37 of screw, and tech-generator 37 is fixed on the surface of experiment instrument by 2 concentric shafts such as holding screw 39 by T type fixed mount 38.When motor 23 drives tech-generator 37 rotations, can detect the analog quantity output voltage signal characteristic that is directly proportional with motor speed.Current sensor 40 is series in motor 23 power circuits, provides feedback voltage signal when being used to detect electrical power size of current and the closed-loop control of research power.
Experiment instrument front panel of the present invention as shown in Figure 6, pointer voltage table 41 shows the operating voltage of motors; Digital voltmeter 42 shows the output voltage of tech-generator; Digital voltmeter 43 shows the operating voltage of sensor; Digital voltmeter 44 shows the output voltage of sensor; , digital electronic ammeter 45 shows the output current of sensors; Liquid crystal display watch 46 is used for the closed-loop control function prompt, rotating speed shows, counts long demonstration etc.; 16 key function input keyboards 47 are used for the setting of closed-loop control function selecting.Two-way switch 48 places " on Electric Machine Control " experiment instrument to open motor experimental system, places " selection of off system " disable motor experimental system, connects other sensor measuring system simultaneously; Two-way switch 49 places " open loop control " experiment instrument to connect motor open loop detection system, places " closed-loop control " electric system to be in the closed loop characteristic research state; Two-way switch 50 places " loading ", and motor adds the simulation electronic load, and scalable load size, and when placing " zero load ", electric system is in not loading duty; Multi-turn knob 51 is by motor speed under the regulation voltage control open loop situations; Fictitious load knob 52 is used to control under the closed-loop working state, be added on the tech-generator 37 that motor 23 drives and simulate electronic load, can study the duty and the characteristic research of analog quantity and the closed-loop control of digital quantity motor and speed closed loop and power closed-loop control respectively; Reset key switch 53 is used for the zero clearing of motor closed-loop control system and resets; Working sensor voltage-regulation knob 54: can be transferred to 24V from 0 continuously to the operating voltage of angular transducer and micro-displacement sensor
DCLock-bit keyswitch 55 is a sensor output voltage path options button, and pressing latched position is passage 1 output voltage, upsprings to be passage 2 output voltages; Lock-bit keyswitch 56 is a current output sensor path options button, and pressing latched position is passage 1 output current, upsprings to be passage 2 output currents.
Experiment instrument interior distribution circuit board of the present invention as shown in Figure 7, power module 57 can provide 5～12V for all sensors that will study characteristic
DCPower supply can provide 0～30V for brushless electric machine 23
DCDriving power.Single-chip microcomputer signal processing circuit 58, single-chip microcomputer is by program design and software programming, micromotor performance test experimental provision system chart as shown in Figure 8, the ultimate principle block diagram that closed loop feedback system constitutes as shown in Figure 9, realize motor open loop detection, closed-loop control in view of the above, comprise speed closed loop, position closed loop, power closed loop, and magnetic coder and tachogenerator characteristic research.Circuit connection wiring circuit 59, general supply 57 transmission ﹠ distribution to each Displaying Meter, are every yi, and gif sensor provides supply voltage, the sensor detecting signal is imported corresponding Displaying Meter, or sensor signal is inserted the corresponding signal acquisition interface of single-chip microcomputer signal processing circuit board 58.
Each key function of this experiment instrument motor closed-loop control function selecting key as shown in figure 10.
The magneto-dependent sensor demonstration instrument for teaching incorporates the advanced magneto-dependent sensor technology in the up-to-date world, expanding the student and study innovative experiment, is background with typical commercial Application Magnetic Sensor, integrates experimental provision, carry out composite design, developed a whole set of serial magneto-dependent sensor characteristic and used the lecture experiment instrument.This experimental apparatus also has the effectiveness of opening platform, the characteristic of same type of sensor that can other different operating principle of analogue investigation or the novel sensor that comes out newly developed.
Description of drawings
Fig. 1, magneto-dependent sensor comprehensive test instrument functional block diagram
Fig. 2, magneto-dependent sensor comprehensive test instrument pictorial diagram
Fig. 3, angle measurement system structural drawing
Fig. 4, displacement measurement system structural drawing
Fig. 5, motor closed-loop measuring system construction drawing
Fig. 6, experiment instrument front panel figure
Fig. 7, experiment instrument circuit board synoptic diagram
Fig. 8, micromotor performance test experimental provision system chart
The ultimate principle block diagram that Fig. 9, closed loop feedback system constitute
Figure 10, the definition of motor closed-loop control function keyboard
Embodiment
Embodiment:
The wide 47cm of magneto-dependent sensor teaching experimental of the present invention's preparation, long 52cm, high 17cm, external form is as shown in Figure 2.Outer index plate (2) the diameter 200mm of angular transducer test board, 0.5 ° of minimum scale, interior index dial 3 be along 2 vernier calibration 30 lattice of 180 ° of symmetric positions of diameter, minimum calibration 1 '.Slant angle sensor 6 diameter 64mm are fixed on the support 5 by holding screw 7.Slant angle sensor 6 obtains working sensor voltage by circuit connection to wired circuit board 59, simultaneously the sensor output voltage signal is sent to experiment instrument front panel voltage indicator gauge 44, obtains along with test board rotates corresponding output electric signal; If slant angle sensor 6 selection standard electric currents output sample obtains working sensor voltage by circuit connection to wired circuit board 59, simultaneously the current output sensor signal is sent to experiment instrument front panel electric current indicator gauge 45.Magnetosensitive angular transducer 10 diameter 38mm, flange diameter 52mm is installed on the fixed mount 8 with one heart by 2 fixed screws 11.Angle measurement platform rotating shaft 4 yi is in addition inserted in magnetosensitive angular transducer rotating shaft 12 with one heart, and gif holds in the hole that is slidingly matched, and is fixing by stop screw 13.When angle measurement unit rotating shaft 12 rotated, sensor 10 can provide the respective angles output signal.Obtain working sensor voltage by circuit connection to wired circuit board 59, simultaneously angular transducer 10 output voltage signals are sent to experiment instrument front panel voltage indicator gauge 44, obtain along with test board rotates corresponding output electric signal; If magnetosensitive angular transducer 10 selection standard electric currents output sample obtains working sensor voltage by circuit connection to wired circuit board 59, simultaneously the current output sensor signal is sent to experiment instrument front panel electric current indicator gauge 45.
Working sensor voltage-regulation knob 54: can be transferred to 24V from 0 continuously to the operating voltage of angular transducer and micro-displacement sensor
DCLock-bit keyswitch 55 is a sensor output voltage path options button, and pressing latched position is passage 1 output voltage, upsprings to be passage 2 output voltages; Lock-bit keyswitch 56 is a current output sensor path options button, and pressing latched position is passage 1 output current, upsprings to be passage 2 output currents.
The present invention selects bilateral axle dc brushless motor 23 for use, is anchored on the instrument upper surface by motor fixing frame 24,25 by screw.At bilateral axle direct current generator 23yi, the gif end, coaxial installation has the magnetic coder 26 of 90 ° of phasic difference square waves of two-way and zero pulse signal.Adopt 2 synchronous pulleys of diameter 30mm, wherein 1 synchronous pulley 27 is fixed on the yi in addition of motor 23, gif end output major axis is near motor side, other is yi, gif synchronous pulley 28 is fixed on and contains on the bearing shaft bearing 29, bearing seat will be with 30 and 2 synchronous pulley tensionings synchronously, be fixed on the experiment instrument upper surface by 2 screws 31, keep 2 synchronous pulley straight lines to connect.Can observe the demonstration motor thus and rotate the process that how to be transformed into straight-line displacement.
Be close to synchronous pulley 27, yi has been installed on motor shaft, the permeability magnetic material gear 32 of gif number of teeth 30, modulus 2, magnetosensitive gear tachogenerator 33, be fixed on the T font fixed mount 34,2 holding screws keep tachogenerator and magnetic conduction gear 32 at same yi fixed mount 34, and the gif bar is crossed the level line at center.This experiment can be by selecting to replace the different spare unit that detect the principle tachogenerator, the detection characteristic of observing different sensitive element gear tachogenerators arbitrarily.
Flexible clutch 36yi, the gif end connects motor 23 major axis outermost end by fixed screw, yi in addition, the gif end is by the fixing small-sized tech-generator 37 of screw, and tech-generator 37 is fixed on the surface of experiment instrument by 2 concentric shafts such as holding screw 39 by T type fixed mount 38.When motor 23 drives tech-generator 37 rotations, can detect the analog quantity output voltage signal characteristic that is directly proportional with motor speed.Current sensor 40 is series in motor 23 power circuits, provides feedback voltage signal when being used to detect electrical power size of current and the closed-loop control of research power.
All electric signal of motor 23, magnetic coder 26, gear tachogenerator 33, tech-generator 37, current sensor 40 in the Motor Measuring System, arrive single-chip microcomputer signal processing circuit board 58 and wired circuit board 59 by circuit connection, pass through software processes, obtain motor open loop detection, closed-loop control, comprise speed closed loop, position closed loop, power closed loop, and magnetic coder and tachogenerator characteristic research.Experiment instrument front panel pointer voltage table 41 shows the operating voltage of motor, digital voltmeter 42 shows the output voltage of tech-generator, digital voltmeter 43 shows the operating voltage of sensor, and liquid crystal display watch 46 is used for the closed-loop control function prompt, rotating speed shows, counts long demonstration etc.; 16 key function input keyboards 47 are used for the setting of closed-loop control function selecting.Two-way switch 48 is selected to open or the disable motor experimental system, and closed condition is connected other sensor measuring system simultaneously; It still is " closed-loop control " that two-way switch 49 selective systems place " open loop control "; Two-way switch 50 is selected " loading " state, and motor adds simulation electronic load, knob 52 scalable load sizes.Multi-turn knob 51 can be studied the duty and the characteristic research of analog quantity and the closed-loop control of digital quantity motor and speed closed loop and power closed-loop control respectively by motor speed under the regulation voltage control open loop situations; Reset key switch 53 is used for the zero clearing of motor closed-loop control system and resets;
Experiment instrument interior distribution circuit board of the present invention as shown in Figure 7, power module 57 can provide 5～12V for all sensors that will study characteristic
DCPower supply can provide 0～30V for brushless electric machine 23
DcDriving power is single-chip microcomputer signal processing circuit 58, by circuit connection wiring circuit 59, the general supply transmission ﹠ distribution to each Displaying Meter, is every yi, and gif sensor provides supply voltage.Circuit connection wiring circuit 59 is imported corresponding Displaying Meter with the sensor detecting signal, or sensor signal is inserted the corresponding signal acquisition interface of single-chip microcomputer signal processing circuit board 58.Single-chip microcomputer signal processing circuit 58 drives LCD panel 46 operate as normal.
Claims (1)
1. integrated demonstration experimental instrument for magnetic sensing sensor, it is characterized in that front panel, and have single-chip microcomputer treatment circuit plate and wiring plate formation by demonstration test instrument cabinet, angular transducer measuring system, micro-displacement sensor measuring system, motor closed loop test system, installation testing instrument, manipulation keyboard, change-over switch and patch jack; Whole integrated demonstration experimental instrument for magnetic sensing sensor can be realized magnetosensitive angular transducer characteristic research, magnetosensitive slant angle sensor characteristic research, magnetosensitive micro-displacement sensor characteristic research, magnetosensitive gear tachogenerator characteristic research, the magnetic coder characteristic research, the tech-generator characteristic research; Realize that motor rotation sensor analog quantity, digital quantity detect characteristic research; And Single Chip Microcomputer (SCM) program control realization open loop detection and closed-loop control, comprise speed closed loop, position closed loop and the research of power closed loop characteristic;
Described angular transducer measuring system comprises: abase frame (1), fixedly EXT scale dish (2), interior index dial (3), angle measurement platform rotating shaft (4), slant angle sensor fixed mount (5), slant angle sensor (6), top holding screw (7), angular transducer fixed mount (8), first fixed screw (9), magnetosensitive angular transducer (10), second fixed screw (11), magnetosensitive angular transducer rotating shaft (12), stop screw (13) and first holding screw (14); Fixedly EXT scale dish (2) with 360 ° of angle-differentiateds is fixed on the abase frame (1), be fastened on one heart in the angle measurement platform rotating shaft (4) at the interior index dial (3) that 2 vernier graduated scales have been installed along 180 ° of symmetric positions of diameter, angle measurement platform rotating shaft (4) is passed the hole that is slidingly matched and is installed in abase frame top; When angle measurement platform rotating shaft (4) is rotated with respect to slant angle sensor fixed mount (5), by interior, fixedly the registration that provides of EXT scale dish can accurately provide the angle of relative commentaries on classics; Fix this slant angle sensor fixed mount (5) at angle measurement platform rotating shaft (4) one ends, circular slant angle sensor (6) is slidingly installed on slant angle sensor fixed mount (5), by the relative position of top holding screw (7) constant tilt angle transducer; Angular transducer fixed mount (8) is by 3 first fixed screws (9) and the concentric opposite side that is fixed on abase frame (1) of angle measurement platform rotating shaft (4); Magnetosensitive angular transducer (10) is installed on the angular transducer fixed mount (8) with one heart by 2 second fixed screws (11); Magnetosensitive angular transducer rotating shaft (12) is inserted angle measurement platform rotating shaft (4) other end with one heart and is slidingly matched in the hole, and is fixing by stop screw (13); Respective angles standard registration in the time of providing magnetosensitive angular transducer rotating shaft rotation like this; The angular transducer measuring system is fixed on the upper surface of integrated demonstration experimental instrument for magnetic sensing sensor cabinet by 2 first holding screws (14);
Described micro-displacement sensor measuring system comprises: milscale (15), first support (16), magnetosensitive micro-displacement sensor (17), first screw (18), second support (19), micro-displacement sensor shifting axle (20), second holding screw (21) and attachable mechanical stage (22); Milscale (15) is fixed on first support (16), magnetosensitive micro-displacement sensor (17) is fixed on second support (19) by first screw (18), distance between first support (16) and second support (19) determines that by micro-displacement sensor shifting axle (20) and the position of milscale (15) in the useful range scope first support (16) is fixed on the upper surface of integrated demonstration experimental instrument for magnetic sensing sensor cabinet by second holding screw (21) respectively with second support (19); When the milscale degrees wheel rotated, micro-displacement sensor shifting axle (20) to-and-fro movement that attachable mechanical stage (22) can promote to have elastic restoring force accurately realized displacement measurement;
Described motor closed loop test system comprises bilateral axle dc brushless motor (23), motor fixing frame (24,25), magnetic coder (26), 2 synchronous pulleys (27,28), bearing seat (29), band (30) and second screw (31) synchronously; Bilateral axle dc brushless motor (23) is anchored on the integrated demonstration experimental instrument for magnetic sensing sensor upper surface by motor fixing frame (24,25) by the 3rd screw; At bilateral axle direct current generator (23) one ends, a magnetic coder of coaxial installation (26), these magnetic coder output two-way 90 ° of phasic difference squares type square wave and per 360 ° of 1 pulse zero signals; Synchronous pulley (27) in these 2 synchronous pulleys is fixedly mounted on the other end output major axis of bilateral axle direct current generator (23) near bilateral axle direct current pusher side, another synchronous pulley (28) in these 2 synchronous pulleys is fixed on the bearing seat (29) that contains bearing and rotating shaft, bearing seat will be with (30) and these 2 synchronous pulley tensionings synchronously, by 2 second screws (31) bearing seat is fixed on the integrated demonstration experimental instrument for magnetic sensing sensor upper surface, keeps 2 synchronous pulley straight lines to connect; Can observe the demonstration motor thus and rotate the process that how to be transformed into straight-line displacement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101203573A CN101123046B (en) | 2007-08-16 | 2007-08-16 | An integrated demonstration experimental instrument for magnetic sensing sensor |
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| CN2007101203573A CN101123046B (en) | 2007-08-16 | 2007-08-16 | An integrated demonstration experimental instrument for magnetic sensing sensor |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE202014103355U1 (en) * | 2014-07-22 | 2014-08-19 | Infineon Technologies Ag | An apparatus and a system for detecting a physical quantity |
| CN104569815A (en) * | 2014-12-24 | 2015-04-29 | 格力电器（合肥）有限公司 | Motor detection device |
| CN104931788A (en) * | 2015-06-12 | 2015-09-23 | 陕西宝成航空仪表有限责任公司 | Automobile throttle sensor test apparatus |
| CN106932603B (en) * | 2017-04-27 | 2023-11-10 | 国家电网公司 | Sensor transition joint for measuring speed of vacuum circuit breaker and mounting method thereof |
| CN108873770B (en) * | 2018-05-09 | 2021-03-19 | 中国科学院长春光学精密机械与物理研究所 | AS5048A magnetic encoder control method and system based on state machine |
| CN110930853B (en) * | 2019-12-24 | 2021-06-25 | 安徽机电职业技术学院 | Magnetic gear drive mechanism is with simulation presentation device based on magnetic field modulation principle |
| CN114120736B (en) * | 2021-10-29 | 2023-10-03 | 深圳职业技术学院 | Driving motor practical training teaching system and test method for electric automobile |
| CN113920832A (en) * | 2021-11-08 | 2022-01-11 | 南京航空航天大学 | Multi-degree-of-freedom rotation speed sensor test teaching experiment table and application thereof |
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