CN205301352U - Speed meter for hall sensor - Google Patents
Speed meter for hall sensor Download PDFInfo
- Publication number
- CN205301352U CN205301352U CN201620016052.2U CN201620016052U CN205301352U CN 205301352 U CN205301352 U CN 205301352U CN 201620016052 U CN201620016052 U CN 201620016052U CN 205301352 U CN205301352 U CN 205301352U
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- hall element
- motor
- measuring device
- speed measuring
- needle
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Abstract
The utility model relates to a speed meter for hall sensor belongs to the automatic control engineering field, speed meter for hall sensor include motor, magnetic needle, motor cabinet, the motor set up on the motor cabinet, be equipped with on the rotor of motor and supply the magnetic needle that detects, correspond the hall sensor who sets up with the magnetic needle and set up in the magnetic needle top, hall sensor links to each other with the filter circuit who has filtering voltage waveform peak function, filter circuit is continuous with the comparison circuit who has voltage comparing function, the utility model discloses use hall sensor to obtain pulse signal, its mechanical structure also can do comparatively simply, as long as be stained with a magnet steel on the circumference of pivot, lets hall switch be close to the magnet steel, has signal output, when the pivot is rotatory, will constantly produce pulse signal output, and dust, greasy dirt are not afraid of to this kind of sensor, use extensively at industrial field, when having overcome count method, pulse width method, because the gate can not be synchronous with the measured signal, just there be, bearing the problem of 1 error.
Description
Technical field
The utility model belongs to automation field, specifically, relates to a kind of Hall element speed measuring device.
Background technology
Testing the speed is the problem often running in industrial or agricultural, and association's use singlechip technology designs the instrument that tests the speed and has very important meaning. Test the speed, first will solve is the problem of sampling. While using analogue technique to make velocity metre, the method for conventional tachometer generator, row tests the speed, and can use simple pulse counting method. As long as rotating shaft often rotates a circle, produce one or fixing multiple pulses, and pulse is sent in single-chip microcomputer and counted, can obtain the information of rotating speed.
Conventionally can with counting method, survey pulsewidth method and etc. precision method test. So-called counting method, is exactly a given gate time, and in gate time, the pulse of inside counting input is counted. Because gate can not be synchronizeed with measured signal, therefore, all there is the problem of positive and negative 1 error in these two kinds of methods, and first method is applicable to when signal frequency is high use, and second method is used in the time that signal frequency is low.
Therefore, be necessary that proposition one is simple in structure, accurate speed measuring device tests the speed.
Summary of the invention
In order to overcome the problem existing in background technology, the utility model proposes a kind of Hall element that uses and obtain pulse signal, its frame for movement also can be done comparatively simply, as long as be stained with a magnet steel on the circumference of rotating shaft, allow Hall switch near magnet steel, just there is signal output, when rotating shaft rotation, will constantly produce output of pulse signal, this sensor is not afraid of dust, greasy dirt, is widely used in industry spot; While having overcome counting method, pulsewidth method, because gate can not be synchronizeed with measured signal, there is the problem of positive and negative 1 error.
To achieve these goals, the utility model is achieved through the following technical solutions: described Hall element speed measuring device comprises motor, needle, motor cabinet, Hall element, filter circuit, comparison circuit, shaping circuit, single-chip microcomputer, display module, power supply, described motor is arranged on motor cabinet, the rotor of motor is provided with can be for the needle detecting, the Hall element of setting corresponding to needle is arranged at needle top, Hall element is connected with the filter circuit with filtering voltage waveform spike function, filter circuit is connected with the comparison circuit with voltage comparing function, comparison circuit is connected with the shaping circuit with waveform shaping function, shaping circuit is connected with the single-chip microcomputer with control function, single-chip microcomputer is connected with the display module with Presentation Function, power supply and motor, motor cabinet, Hall element, filter circuit, comparison circuit, shaping circuit, single-chip microcomputer, display module is connected.
Described Hall element is 5-10cm apart from the distance of needle.
Described needle is draw point.
Described display module is LED charactron.
Described Hall element model is CS3020.
The power of described motor is less than 50w.
In described comparison circuit, be provided with voltage comparator.
The model of described voltage comparator is LM324.
Described Hall element speed measuring device is also provided with frequency converter
The beneficial effects of the utility model:
The utility model uses Hall element to obtain pulse signal, its frame for movement also can be done comparatively simply, as long as be stained with a magnet steel on the circumference of rotating shaft, allow Hall element near needle, just there is signal output, when rotating shaft rotation, will constantly produce output of pulse signal, this sensor is not afraid of dust, greasy dirt, is widely used in industry spot; While having overcome counting method, pulsewidth method, because gate can not be synchronizeed with measured signal, there is the problem of positive and negative 1 error.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model circuit connection diagram;
Fig. 3 is the utility model structured flowchart.
In figure, 1-motor, 2-needle, 3-motor cabinet, 4-Hall element, 5-filter circuit, 6-comparison circuit, 7-shaping circuit, 8-single-chip microcomputer, 9-display module, 10-power supply.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and beneficial effect clearer, below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to facilitate the technical staff to understand.
As Figure 1-3, the utility model discloses a kind of Hall element speed measuring device, and its technical scheme is: described Hall element speed measuring device comprises motor 1, needle 2, motor cabinet 3, Hall element 4, filter circuit 5, comparison circuit 6, shaping circuit 7, single-chip microcomputer 8, display module 9, power supply 10, described motor 1 is arranged on motor cabinet 3, the rotor of motor 1 is provided with can be for the needle 2 detecting, the Hall element 4 of setting corresponding to needle 2 is arranged at needle 2 tops, Hall element 4 is connected with the filter circuit 5 with filtering voltage waveform spike function, filter circuit 5 energy filtering waveform spikes, make Hall element 4 steady operations, filter circuit 5 is connected with the comparison circuit 6 with voltage comparing function, Hall element 4 output voltages and potentiometer are relatively drawn to low and high level signal, comparison circuit 6 is connected with the shaping circuit 7 with waveform shaping function, after shaping circuit 7 effects, to ensure to obtain good data signal, shaping circuit 7 is connected with the single-chip microcomputer 8 with control function, single-chip microcomputer 8 is connected with the display module 9 with Presentation Function, power supply 10 and motor 1, motor cabinet 3, Hall element 4, filter circuit 5, comparison circuit 6, shaping circuit 7, single-chip microcomputer 8, display module 9 is connected, use Hall element 4 to obtain pulse signal, its frame for movement also can be done comparatively simply, as long as be stained with a magnet steel on the circumference of rotating shaft, allow Hall element 4 near magnet steel, just there is signal output, when rotating shaft rotation, will constantly produce output of pulse signal, this Hall element 4 is not afraid of dust, greasy dirt, be widely used in industry spot, while having overcome counting method, pulsewidth method, because gate can not be synchronizeed with measured signal, there is the problem of positive and negative 1 error.
Described Hall element 4 is 5-10cm apart from the distance of needle 2, makes the data optimum recording.
Described needle 2 is draw point, increases the service life.
Described display module 9 is LED charactron, energy-conservation excellent with valency.
Described Hall element 4 models are CS3020, and valency is excellent and performance is good.
The power of described motor 1 is less than 50w, and the object that realizes raising or reduction motor 1 rotating speed is convenient, and motor 1 rotating speed can not be undergone mutation.
In described comparison circuit 6, be provided with voltage comparator, there is certain voltage shaping feature.
The model of described voltage comparator is LM324, is that single-chip microcomputer obtains good stable output signal, is unlikely to lossing signal, can improve the accuracy and the stability that test the speed.
Described Hall element speed measuring device is also provided with frequency converter, makes motor 1 speed change easier.
Single-chip microcomputer model is AT89C51, and a kind of program of Hall element speed measuring device is known, refers to (http://wenku.baidu.com/view/34d6194e3f5727a5e962e7.html).
The course of work of the present utility model:
Switch on power 10, starter motor 1, Hall element 4 is by measuring the needle 2 on motor shaft, signal is passed to filter circuit 5, effect through comparison circuit 6, shaping circuit 7 finally flows to single-chip microcomputer 8, and single-chip microcomputer 8 shows signal in real time by display module 9, regulates frequency converter simultaneously, motor 1 rotating speed is changed, repeatedly measure the rotating speed of motor 1 to obtain the parameter to motor 1 performance.
The utility model uses Hall element to obtain pulse signal, its frame for movement also can be done comparatively simply, as long as be stained with a magnet steel on the circumference of rotating shaft, allow Hall element near needle, just there is signal output, when rotating shaft rotation, will constantly produce output of pulse signal, this sensor is not afraid of dust, greasy dirt, is widely used in industry spot; While having overcome counting method, pulsewidth method, because gate can not be synchronizeed with measured signal, there is the problem of positive and negative 1 error.
Finally explanation is, above preferred embodiment is only for the technical solution of the utility model is described but not to restriction of the present utility model, although the utility model is described in detail by above preferred embodiment, but those skilled in the art are to be understood that and can make various changes to it in the form and details, and do not depart from technical scope of the present utility model.
Claims (9)
1. a Hall element speed measuring device, is characterized in that: described Hall element speed measuring device comprises motor, needle, motor cabinet, Hall element, filter circuit, comparison circuit, shaping circuit, single-chip microcomputer, display module, power supply, described motor is arranged on motor cabinet, the rotor of motor is provided with can be for the needle detecting, the Hall element of setting corresponding to needle is arranged at needle top, Hall element is connected with the filter circuit with filtering voltage waveform spike function, filter circuit is connected with the comparison circuit with voltage comparing function, comparison circuit is connected with the shaping circuit with waveform shaping function, shaping circuit is connected with the single-chip microcomputer with control function, single-chip microcomputer is connected with the display module with Presentation Function, power supply and motor, motor cabinet, Hall element, filter circuit, comparison circuit, shaping circuit, single-chip microcomputer, display module is connected.
2. a kind of Hall element speed measuring device according to claim 1, is characterized in that: described Hall element is 5-10cm apart from the distance of needle.
3. a kind of Hall element speed measuring device according to claim 1, is characterized in that: described needle is draw point.
4. a kind of Hall element speed measuring device according to claim 1, is characterized in that: described display module is LED charactron.
5. a kind of Hall element speed measuring device according to claim 1, is characterized in that: described Hall element model is CS3020.
6. a kind of Hall element speed measuring device according to claim 1, is characterized in that: the power of described motor is less than 50w.
7. a kind of Hall element speed measuring device according to claim 1, is characterized in that: in described comparison circuit, be provided with voltage comparator.
8. a kind of Hall element speed measuring device according to claim 7, is characterized in that: the model of voltage comparator is LM324.
9. a kind of Hall element speed measuring device according to claim 1, is characterized in that: described Hall element speed measuring device is also provided with frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620016052.2U CN205301352U (en) | 2016-01-10 | 2016-01-10 | Speed meter for hall sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620016052.2U CN205301352U (en) | 2016-01-10 | 2016-01-10 | Speed meter for hall sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205301352U true CN205301352U (en) | 2016-06-08 |
Family
ID=56486345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620016052.2U Expired - Fee Related CN205301352U (en) | 2016-01-10 | 2016-01-10 | Speed meter for hall sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205301352U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680530A (en) * | 2017-02-23 | 2017-05-17 | 北京惠达智农科技有限公司 | Non-contact type rotating speed measuring apparatus |
| CN109374916A (en) * | 2018-09-06 | 2019-02-22 | 芜湖职业技术学院 | A kind of low power consumption electric motor speed detector |
| CN110487522A (en) * | 2019-07-18 | 2019-11-22 | 日立楼宇技术（广州）有限公司 | Reliability of Microprocessor test equipment, method and device |
| WO2023216578A1 (en) * | 2022-05-12 | 2023-11-16 | 江苏多维科技有限公司 | Magnetic switch having filtering function |
-
2016
- 2016-01-10 CN CN201620016052.2U patent/CN205301352U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680530A (en) * | 2017-02-23 | 2017-05-17 | 北京惠达智农科技有限公司 | Non-contact type rotating speed measuring apparatus |
| CN109374916A (en) * | 2018-09-06 | 2019-02-22 | 芜湖职业技术学院 | A kind of low power consumption electric motor speed detector |
| CN110487522A (en) * | 2019-07-18 | 2019-11-22 | 日立楼宇技术（广州）有限公司 | Reliability of Microprocessor test equipment, method and device |
| CN110487522B (en) * | 2019-07-18 | 2021-10-01 | 日立楼宇技术（广州）有限公司 | Action reliability testing equipment, method and device |
| WO2023216578A1 (en) * | 2022-05-12 | 2023-11-16 | 江苏多维科技有限公司 | Magnetic switch having filtering function |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20170110 |