CN205785059U - Angular transducer based on hall device - Google Patents
Angular transducer based on hall device Download PDFInfo
- Publication number
- CN205785059U CN205785059U CN201620693228.8U CN201620693228U CN205785059U CN 205785059 U CN205785059 U CN 205785059U CN 201620693228 U CN201620693228 U CN 201620693228U CN 205785059 U CN205785059 U CN 205785059U
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- cpu module
- angular transducer
- hall
- hall element
- connecting plug
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- Expired - Fee Related
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Angular transducer based on hall device, relates to angular transducer.Offer simple in construction, a kind of based on hall device the angular transducer that easy to operate, measurement reproducibility good, length in service life, certainty of measurement are high.It is provided with connecting plug, rotary shaft, radial magnet, Hall element, circuit board, CPU module and power module；Described radial magnet is arranged on bottom rotary shaft, Hall element is located at the underface of radial magnet and installs on circuit boards, the input of the output termination CPU module of Hall element, the angle analog signal output of CPU module connects one end of connecting plug, the other end output voltage values of connecting plug, CPU module is installed on circuit boards；Described power module is whole sensor power.
Description
Technical field
This utility model relates to angular transducer, especially relates to a kind of angular transducer based on hall device.
Background technology
Angular transducer mainly has traditional contact type angle sensor, photo-electric angle sensor and magneto-electric angle at present
Degree sensor.Traditional contact type angle sensor is easily worn and torn, and can produce bigger error, therefore its test after long-time use
Performance is the highest, and dynamic response is poor, and service life is short；Photo-electric angle sensor is of a great variety, wherein laser type angular transducer
Certainty of measurement height, reliable operation, cost are relatively low, practicality is relatively strong, but its structure is complicated, and volume is relatively big, the optics instrument used
Device is more, requires laser beam strict, and detection object is also had special requirement, and therefore its application is limited.Other light
Although electric-type angular transducer is measured more accurate, but big multipair environmental requirement is the harshest, and vibration resistance is poor, and installation requirement is high,
And expensive, therefore it is also not suitable for substantial amounts of universal use；Magneto-electric angular transducer certainty of measurement is high, low cost, installs
Convenient, it is simple to maintenance and management, service life is long, is the important directions of current angular sensor development.Magneto-electric angle sensor
Device has the angular transducer using integrated chip, but how expensive the used chip of this sensor is, and to peripheral circuit
Require strict.
This utility model, precisely in order to improve disadvantages mentioned above, is developed one and is entered based on AS5045 magnetic rotary encoder chip
Gathering and the product processed of row data.Its simple in construction, easy to operate, cheap, overcome contact type angle sensor
And the shortcomings of photo-electric angle sensor, it is a kind of more satisfactory angular transducer.
Summary of the invention
The purpose of this utility model be provide simple in construction, easy to operate, measurement reproducibility good, length in service life, survey
A kind of based on hall device the angular transducer that accuracy of measurement is high.
This utility model is provided with connecting plug, rotary shaft, radial magnet, Hall element, circuit board, CPU module and power supply
Module；
Described radial magnet is arranged on bottom rotary shaft, and Hall element is located at the underface of radial magnet and is arranged on circuit
On plate, the input of the output termination CPU module of Hall element, the angle analog signal output of CPU module connects connecting plug
One end, the other end output voltage values of connecting plug, CPU module install on circuit boards；Described power module is whole biography
Sensor is powered.
Described Hall element can use AS5045 magnetic rotary encoder chip.
Described CPU module can use atmega16 single-chip microcomputer；AS5045 magnetic rotary encoder chip is adopted by described CPU module
Collect to angle-data by conversion element and translation circuit, the physical signalling collected is converted into analogue signal.
Described power module can use 15V DC source, then is converted to 5V power supply to whole sensor by 7805 chips
Power supply.
This utility model utilizes the feature of the magnetic induction radially concentric circular Sine distribution of radial magnet, designs
A Hall angular transducer.Experiment shows, this utility model simple in construction, easy to operate, and measurement reproducibility is good, certainty of measurement
High.
Non-contact Angle Measurement sensor based on AS5045 magnetic rotary encoder chip, it is achieved angle is surveyed accurately
Amount, and use easy to operate, service life is long, is the most all with a wide range of applications.
Accompanying drawing explanation
Fig. 1 is the structure sectional view in this utility model embodiment；
Fig. 2 is the experiment test scheme schematic diagram in this utility model embodiment；
Fig. 3 is the test result in this utility model embodiment；
Fig. 4 is the use circuit diagram of the Hall element in this utility model embodiment；
Fig. 5 is the CPU module circuit diagram in this utility model embodiment.
Detailed description of the invention
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Seeing Fig. 1, this utility model embodiment is provided with connecting plug 1, rotary shaft 2, radial magnet 3, Hall element 4, electricity
Road plate 5, CPU module (being not drawn in FIG) and power module (being not drawn in FIG)；Described radial magnet 3 is arranged on rotation
Bottom axle 2, Hall element 4 is located at the underface of radial magnet 3 and is arranged on circuit board 5, the output termination of Hall element 4
The input of CPU module, the angle analog signal output of CPU module connects one end of connecting plug 1, another of connecting plug 1
End output voltage values, CPU module is arranged on circuit board 5；Described power module is whole sensor power.
Described Hall element 4 uses AS5045 magnetic rotary encoder chip.
Described CPU module uses atmega16 single-chip microcomputer；AS5045 magnetic rotary encoder chip is gathered by described CPU module
To angle-data by conversion element and translation circuit, the physical signalling collected is converted into analogue signal.
Described power module uses 15V DC source, then is converted to 5V power supply to the confession of whole sensor by 7805 chips
Electricity.
When rotary shaft rotates, Hall element pickup radial magnet is relative to the change of position, at the circuit in circuit board
Reason, is exported relevant voltage value by connecting plug.
Fig. 2 provides the testing scheme schematic diagram of this utility model and external system.The precision of sensor designed by checking,
One angle dial 23 is installed on a sensor, is used for measuring the sensor rotation axle anglec of rotation.Rotating pointer 22, drives
Radial magnet 3 rotates, and sensor will obtain a voltage signal, the magnitude of voltage i.e. sensor exported by sensor wire plug
Output data, send into digital circuit 26 after the A/D changer 25 of external system and process, utilize the data of input to calculate survey
The angle value that examination is arrived, the angle value finally measured just can show at display screen.In fig. 2, labelling 24 is wire.
Fig. 3 provides angular transducer test result coordinate diagram.This utility model is carried out experiment test, experimental test procedures
As follows: rotary shaft is rotated in the counterclockwise direction, record actual corners angle value A that graduated disc shows and sensor is defeated every 10 °
Go out the angle value (claiming measured value A1) obtained after signal is computed, then measured value A1 and actual corners angle value A are recorded and sitting
On parameter.As can be seen from Figure 3: actual corners angle value A is good with measured value A1 registration, good linearity, shows sensor output signal
Can correctly reflect that actual angle changes.
Fig. 4 is that the AS5045 of utility model embodiment uses circuit diagram module.AS5045 is a kind of non-contact type magnetic rotation
Encoder product, the angle in the range of accurately measuring whole 360 °.This chip is a SOC(system on a chip), in single package
Incorporate integrated form Hall element, AFE (analog front end) and data signal and process function.When measuring angle, only the need heart in the chips is upper
Side places 1 and rotates bipolar magnet.This measurement of absolute angle mode can the angle position of indication magnet immediately, its resolution reaches
To 0.0879 °, often circle has 4096 positions.Digitized number can be provided with the form that serial bit stream and pwm signal export
According to.AS5045 has internal voltage regulator, may operate under 3.3V or 5V supply voltage.
When using AS5045, AS5045 chip is powered by VCC, mainly by this pin of PWM, the angle that will detect
Degree variable signal passes.During transmission, first it is also performed to Filtering Processing, square-wave signal is converted into direct current letter
Number, pass to CPU module the most again.
In the present embodiment, the control chip of micro controller module CPU is preferably AVR series monolithic atmega16 single-chip microcomputer.
Described micro controller module circuit is as it is shown in figure 5, include that reset, A/D fill the function distribution of filtering and each I/O port changed.This sets
Meter mainly utilizes the A/D translation function of single-chip microcomputer, receives by the angle signal of AS5045 chip collection, is then converted into mould
Intend signal, be eventually transferred to exterior angle value display system.
Claims (3)
1. angular transducer based on hall device, it is characterised in that be provided with connecting plug, rotary shaft, radial magnet, Hall unit
Part, circuit board, CPU module and power module；
Described radial magnet is arranged on bottom rotary shaft, and Hall element is located at the underface of radial magnet and is arranged on circuit board
On, the input of the output termination CPU module of Hall element, the angle analog signal output of CPU module connects connecting plug
One end, the other end output voltage values of connecting plug, CPU module is installed on circuit boards；Described power module is whole sensing
Device is powered.
2. angular transducer based on hall device as claimed in claim 1, it is characterised in that described Hall element uses
AS5045 magnetic rotary encoder chip.
3. angular transducer based on hall device as claimed in claim 1, it is characterised in that described CPU module uses
Atmega16 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620693228.8U CN205785059U (en) | 2016-07-03 | 2016-07-03 | Angular transducer based on hall device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620693228.8U CN205785059U (en) | 2016-07-03 | 2016-07-03 | Angular transducer based on hall device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205785059U true CN205785059U (en) | 2016-12-07 |
Family
ID=58127208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620693228.8U Expired - Fee Related CN205785059U (en) | 2016-07-03 | 2016-07-03 | Angular transducer based on hall device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205785059U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655399A (en) * | 2017-07-12 | 2018-02-02 | 北京军立方机器人科技有限公司 | A kind of multi-turn absolute value encoder and method for detecting position |
| CN110763862A (en) * | 2019-09-29 | 2020-02-07 | 四川中曼电气工程技术有限公司 | Angle measuring method based on rotating mechanism in petroleum drilling and production equipment |
| WO2021018098A1 (en) * | 2019-07-26 | 2021-02-04 | 纳恩博（北京）科技有限公司 | Steering detection mechanism and vehicle having same |
-
2016
- 2016-07-03 CN CN201620693228.8U patent/CN205785059U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655399A (en) * | 2017-07-12 | 2018-02-02 | 北京军立方机器人科技有限公司 | A kind of multi-turn absolute value encoder and method for detecting position |
| WO2021018098A1 (en) * | 2019-07-26 | 2021-02-04 | 纳恩博（北京）科技有限公司 | Steering detection mechanism and vehicle having same |
| CN110763862A (en) * | 2019-09-29 | 2020-02-07 | 四川中曼电气工程技术有限公司 | Angle measuring method based on rotating mechanism in petroleum drilling and production equipment |
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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: 20161207 Termination date: 20180703 |