CN109489695A - A kind of magneto-dependent sensor for the output of RS422 digital signal - Google Patents
A kind of magneto-dependent sensor for the output of RS422 digital signal Download PDFInfo
- Publication number
- CN109489695A CN109489695A CN201811623244.XA CN201811623244A CN109489695A CN 109489695 A CN109489695 A CN 109489695A CN 201811623244 A CN201811623244 A CN 201811623244A CN 109489695 A CN109489695 A CN 109489695A
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- Prior art keywords
- shaft
- sensor housing
- magnet steel
- digital signal
- rotating shaft
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/125—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means characterised by a first part whose movement represents the measuring value, and by a second part which is moved by an external force in order to follow the movement of the first part
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The invention discloses a kind of magneto-dependent sensors for the output of RS422 digital signal, including sensor housing, first rotating shaft, second shaft, installation base plate and cover board, there is installation inner cavity inside sensor housing, sensor housing side is provided with installing port, sensor housing other side center is provided with axis hole, first rotating shaft, which is rotatably assorted, to be installed in the axis hole of sensor housing, the second end of first rotating shaft is fixed with the second shaft by screw A, magnet steel mounting groove is provided in the middle part of second shaft, magnet steel is fitted in the magnet steel mounting groove of second shaft, installation base plate is installed in the installation inner cavity of sensor housing, hardware circuit board is installed on installation base plate, in hardware circuit board there is electromagnetic signal to receive circuit, closing is covered with cover board at the installing port of sensor housing.Electromagnetic signal of the present invention receives circuit reception changes of magnetic field and is converted into RS422 digital signal and exports to host computer, while installation difficulty is low, and output data stability is high.
Description
Technical field
The present invention relates to a kind of magneto-dependent sensor more particularly to a kind of magnetosensitive sensings for the output of RS422 digital signal
Device.
Background technique
Magneto-dependent sensor has many advantages, such as that small in size, precision is high, high reliablity, long service life are widely used in because of it
The fields such as Aeronautics and Astronautics, petroleum, automobile, ship.Traditional magneto-dependent sensor shaft is single component, is an entirety, passes through
Fluting carries out axial limiting with retainer ring on axis, and such structure design assembling process is difficult and occupancy assembly space is excessive,
It will lead to the movement that shaft generates axial direction, make magnetic field strength that corresponding variation occur, output data jump is inaccurate.Moreover,
For prior art magneto-dependent sensor mostly all based on analog signal output, RS422 digital signal is a kind of common number letter
Number, existing magneto-dependent sensor can not export RS422 digital signal, this is unable to satisfy the demand of user.
Summary of the invention
Place in view of the shortcomings of the prior art, the purpose of the present invention is to provide one kind to be used for RS422 digital signal
The rotational motion of first rotating shaft, the second shaft, can be passed to magnet steel by the magneto-dependent sensor of output, and magnetic field occurs for magnet steel rotation
Variation, electromagnetic signal reception circuit reception changes of magnetic field are converted into RS422 digital signal and export to host computer；Meanwhile first turn
Axis and second shaft two parts detachable connection, magnet steel are installed on the second shaft, can reduce installation difficulty, while first turn
Axial displacement will not integrally occur for axis and the second shaft, improve output data stability.
The purpose of the invention is achieved by the following technical solution:
A kind of magneto-dependent sensor for the output of RS422 digital signal, including sensor housing, first rotating shaft, the second shaft, peace
Substrate and cover board are filled, there is installation inner cavity inside the sensor housing, the sensor housing side is provided with and installation inner cavity
The installing port being connected, sensor housing other side center be provided with the axis hole that is connected of installation inner cavity, described first turn
Axis, which is rotatably assorted, to be installed in the axis hole of sensor housing, and the first end of first rotating shaft is placed on the outside of sensor housing, and first turn
The second end of axis is placed in installation inner cavity；The second end of the first rotating shaft is fixed with the second shaft, the second shaft by screw A
Middle part is provided with magnet steel mounting groove, and magnet steel, the installation of the sensor housing are fitted in the magnet steel mounting groove of the second shaft
Installation base plate is installed in inner cavity, hardware circuit board corresponding with magnet steel, the hardware electricity are installed on the installation base plate
There is electromagnetic signal to receive circuit, the electromagnetic signal receives circuit and becomes for receiving magnetic field caused by magnet steel rotation on the plate of road
Change signal, closing is covered with cover board at the installing port of the sensor housing.
In order to which the present invention is better achieved, what second shaft was connected by magnet steel connecting pin and with magnet steel connecting pin turns
The shaft end of shaft end, second shaft is fixedly connected with the second end of first rotating shaft by screw A, and the magnet steel is installed on magnetic
On steel connecting pin, the gap washer A that disappears is equipped between the magnet steel connecting pin and sensor housing inner sidewall of second shaft.
Preferably, the sensor housing inner wall has the ring-shaped step being located in installation inner cavity, the installation base plate
Edge be installed on the ring-shaped step of sensor housing by screw B, screw C.
Preferably, being equipped with bearing group in the axis hole of the sensor housing, the bearing group is set side by side by several
The bearing composition set, the first rotating shaft, which is rotatably assorted, to be installed in bearing group.
Preferably, the magnet steel installation slot center of second shaft has the countersunk head slot towards first rotating shaft, the spiral shell
The nut of nail A is coupled in countersunk head slot.
Preferably, the cover board is fixed on sensor housing by screw D, screw E.
It is formed preferably, the bearing group is arranged side by side by two bearings, the axis hole of the sensor housing is close to biography
Sensor hull outside is equipped with the O-shaped washer A of gap that disappears, and the axis hole of the sensor housing is O-shaped equipped with the gap that disappears close to installation inner cavity side
Washer B.
Preferably, the magnet steel connecting pin of second shaft and shaft end are integrally formed and manufacture.
The present invention compared with the prior art, have the following advantages that and the utility model has the advantages that
(1) rotational motion of first rotating shaft, the second shaft can be passed to magnet steel, magnet steel rotation hair by magneto-dependent sensor of the present invention
Raw changes of magnetic field, electromagnetic signal reception circuit reception changes of magnetic field are converted into RS422 digital signal and export to host computer；Meanwhile
First rotating shaft and second shaft two parts detachable connection, magnet steel are installed on the second shaft, can reduce installation difficulty, simultaneously
Axial displacement will not integrally occur for first rotating shaft and the second shaft, improve output data stability.
(2) variation that rotating excitation field occurs is converted into the output of RS422 digital signal by the present invention, while being joined in user's technology
In the case that number changes, magneto-dependent sensor uncap reprocessing without returning factory can carry out on-line software updating at user
To reach the newest technical indicator demand of user.
(3) be fixed with baffle on first rotating shaft end excircle of the invention, the magnet steel connecting pin side wall of the second shaft with
Baffle, which clamps, is installed on the two sides of two bearings, and two bearings are fixed in the axis hole of sensor housing, such first rotating shaft with
Axial displacement would not integrally occur for the second shaft, improve the output data stability of magneto-dependent sensor.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the circuit diagram that electromagnetic signal of the present invention receives circuit.
Wherein, title corresponding to the appended drawing reference in attached drawing are as follows:
1- first rotating shaft, the second shaft of 2-, 3- bearing group, 4- magnet steel, 5- sensor housing, 51- install inner cavity, 6-
Hardware circuit board, 7- cover board, 8- installation base plate, 9- screw A, 10- screw B, 11- screw C, 12- screw D, 13- spiral shell
E is followed closely, 14- disappears the O-shaped washer A of gap, and 15- disappears the O-shaped washer B of gap.
Specific embodiment
The present invention is described in further detail below with reference to embodiment.
Embodiment
As shown in Figure 1 and Figure 2, a kind of magneto-dependent sensor for the output of RS422 digital signal, including sensor housing 5,
First rotating shaft 1, the second shaft 2, installation base plate 8 and cover board 7 have installation inner cavity 51, sensor housing inside sensor housing 5
5 sides are provided with the installing port being connected with installation inner cavity 51, and 5 other side center of sensor housing is provided with to be connected with installation inner cavity 51
Logical axis hole, first rotating shaft 1 are rotatably assorted in the axis hole for being installed on sensor housing 5, and the first end of first rotating shaft 1 is placed in sensing
5 outside of device shell, the second end of first rotating shaft 1 are placed in installation inner cavity 51.The second end of first rotating shaft 1 is fixed by screw A9
There is the second shaft 2, magnet steel mounting groove is provided in the middle part of the second shaft 2, is fitted with magnet steel in the magnet steel mounting groove of the second shaft 2
4, installation base plate 8 is installed in the installation inner cavity 51 of sensor housing 5, is equipped on installation base plate 8 corresponding with magnet steel 4 hard
Part circuit board 6 there is electromagnetic signal to receive circuit (as shown in Figure 2) in hardware circuit board 6, and electromagnetic signal receives circuit and is used to connect
It receives magnet steel 4 to rotate generated magnetic field variation signal and be converted to RS422 digital signal, be sealed at the installing port of sensor housing 5
It closes and is covered with cover board 7.First rotating shaft 1 is rotated with external sync, and first rotating shaft 1 drives the second shaft 2 to rotate, and then second turn
Axis 2 drives magnet steel 4 to rotate, and magnet steel 4 generates changes of magnetic field due to rotation, in hardware circuit board 6 there is electromagnetic signal to receive electricity
Road, electromagnetic signal receive circuit detect magnet steel 4 rotation and variation magnetic field and obtain analog electrical signal and by analog electrical signal turn
It is changed to RS422 digital signal, then exports RS422 digital signal, can be detected out external rotation situation of change.
As shown in Figure 1, the second shaft 2 is by magnet steel connecting pin and the shaft end being connected with magnet steel connecting pin, the second shaft 2
Shaft end be fixedly connected with the second end of first rotating shaft 1 by screw A9, magnet steel 4 is installed on magnet steel connecting pin, second turn
The gap washer A that disappears is equipped between 5 inner sidewall of magnet steel connecting pin and sensor housing of axis 2.
As shown in Figure 1,5 inner wall of sensor housing has the ring-shaped step being located in installation inner cavity 51, the side of installation base plate 8
Edge is installed on the ring-shaped step of sensor housing 5 by screw B10, screw C11.
As shown in Figure 1, being equipped with bearing group 3 in the axis hole of sensor housing 5, bearing group 3 is arranged side by side by several
Bearing composition, first rotating shaft 1, which is rotatably assorted, to be installed in bearing group 3.Bearing group 3 is arranged side by side by two bearings and is formed, and is sensed
The axis hole of device shell 5 is equipped with the O-shaped washer A14 of gap that disappears on the outside of sensor housing 5, and the axis hole of sensor housing 5 is close to installation
51 side of inner cavity is equipped with the O-shaped washer B15 of gap that disappears.
As shown in Figure 1, the magnet steel installation slot center of the second shaft 2 has the countersunk head slot towards first rotating shaft 1, screw A9's
Nut is coupled in countersunk head slot.Currently preferred cover board 7 is fixed on sensor housing 5 by screw D12, screw E13
On.
The magnet steel connecting pin and shaft end of currently preferred second shaft 2, which are integrally formed, to be manufactured.
In use, first rotating shaft 1 is rotated with external sync, first rotating shaft 1 drives the rotation of the second shaft 2, then second
Shaft 2 drives magnet steel 4 to rotate, and magnet steel 4 generates changes of magnetic field due to rotation, in hardware circuit board 6 there is electromagnetic signal to receive
Circuit, electromagnetic signal receive circuit detect the rotation of magnet steel 4 and variation magnetic field and obtain analog electrical signal and by analog electrical signal
RS422 digital signal is converted to, RS422 digital signal is then exported, can be detected out external rotation situation of change.Electromagnetic signal
It is fed back after receiving the variation that circuit parsing magnetic field strength occurs by the RS422 digital signal of inter-process output corresponding thereto
To host computer.
2 two parts detachable connection of first rotating shaft 1 and the second shaft of the invention, first rotating shaft 1 are rotatably assorted installation
In two Bearing inners, first rotating shaft 1 only serves the external rotation variation that transmission detects, the second shaft 2 and first rotating shaft 1 are solid
Fixed connection and synchronous rotation, the second shaft 2 drive magnet steel 4 to rotate synchronously, the magnet steel connecting pin of the second shaft 2 and sensor housing
It is equipped with the gap washer A that disappears between 5 inner sidewalls, baffle, the magnet steel connection of the second shaft 2 are fixed on 1 end excircle of first rotating shaft
End side wall and baffle clamping are installed on the two sides of two bearings, and two bearings are fixed in the axis hole of sensor housing 5, and such the
Axial displacement would not occur for one shaft 1 and 2 entirety of the second shaft, improve the output data stability of magneto-dependent sensor.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of magneto-dependent sensor for the output of RS422 digital signal, it is characterised in that: including sensor housing (5), first
Shaft (1), the second shaft (2), installation base plate (8) and cover board (7), the sensor housing (5) is internal to have installation inner cavity
(51), sensor housing (5) side is provided with the installing port being connected with installation inner cavity (51), the sensor housing (5)
Other side center is provided with the axis hole being connected with installation inner cavity (51), and the first rotating shaft (1), which is rotatably assorted, is installed on sensor
In the axis hole of shell (5), the first end of first rotating shaft (1) is placed on the outside of sensor housing (5), the second end of first rotating shaft (1)
It is placed in installation inner cavity (51)；The second end of the first rotating shaft (1) passes through screw A(9) it is fixed with the second shaft (2), second
It is provided with magnet steel mounting groove in the middle part of shaft (2), magnet steel (4), the sensing are fitted in the magnet steel mounting groove of the second shaft (2)
It is equipped with installation base plate (8), is equipped on the installation base plate (8) and magnet steel (4) phase in the installation inner cavity (51) of device shell (5)
Corresponding hardware circuit board (6) there is electromagnetic signal to receive circuit, the sensor housing (5) on the hardware circuit board (6)
Installing port at closing be covered with cover board (7).
2. a kind of magneto-dependent sensor for the output of RS422 digital signal described in accordance with the claim 1, it is characterised in that: institute
The second shaft (2) is stated by magnet steel connecting pin and the shaft end being connected with magnet steel connecting pin, the shaft end of second shaft (2)
Pass through screw A(9 with the second end of first rotating shaft (1)) it is fixedly connected, the magnet steel (4) is installed on magnet steel connecting pin, described
The gap washer A that disappears is equipped between the magnet steel connecting pin and sensor housing (5) inner sidewall of second shaft (2).
3. a kind of magneto-dependent sensor for the output of RS422 digital signal described in accordance with the claim 1, it is characterised in that: institute
Stating sensor housing (5) inner wall has the ring-shaped step being located in installation inner cavity (51), and the edge of the installation base plate (8) passes through
Screw B(10), screw C(11) be installed on the ring-shaped step of sensor housing (5).
4. a kind of magneto-dependent sensor for the output of RS422 digital signal described in accordance with the claim 1, it is characterised in that: institute
It states and is equipped in the axis hole of sensor housing (5) bearing group (3), the bearing group (3) is by several bearing groups arranged side by side
At the first rotating shaft (1), which is rotatably assorted, to be installed in bearing group (3).
5. a kind of magneto-dependent sensor for the output of RS422 digital signal described in accordance with the claim 1, it is characterised in that: institute
State the second shaft (2) magnet steel installation slot center have towards first rotating shaft (1) countersunk head slot, the screw A(9) nut match
Conjunction is installed in countersunk head slot.
6. a kind of magneto-dependent sensor for the output of RS422 digital signal described in accordance with the claim 1, it is characterised in that: institute
State cover board (7) and pass through screw D(12), screw E(13) it is fixed on sensor housing (5).
7. a kind of magneto-dependent sensor for the output of RS422 digital signal according to claim 4, it is characterised in that: institute
State bearing group (3) by two bearings be arranged side by side form, the axis hole of the sensor housing (5) close to sensor housing (5) outside
Side is equipped with the O-shaped washer A(14 of gap that disappears), the axis hole of the sensor housing (5) is O-shaped equipped with the gap that disappears close to installation inner cavity (51) side
Washer B(15).
8. a kind of magneto-dependent sensor for the output of RS422 digital signal described in accordance with the claim 1, it is characterised in that: institute
The magnet steel connecting pin and shaft end for stating the second shaft (2), which are integrally formed, to be manufactured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811623244.XA CN109489695A (en) | 2018-12-28 | 2018-12-28 | A kind of magneto-dependent sensor for the output of RS422 digital signal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811623244.XA CN109489695A (en) | 2018-12-28 | 2018-12-28 | A kind of magneto-dependent sensor for the output of RS422 digital signal |
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| CN109489695A true CN109489695A (en) | 2019-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811623244.XA Pending CN109489695A (en) | 2018-12-28 | 2018-12-28 | A kind of magneto-dependent sensor for the output of RS422 digital signal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487169A (en) * | 2019-08-27 | 2019-11-22 | 成都宏明电子股份有限公司 | Angular displacement magneto-dependent sensor for the output of multi-turn RS422 communication protocol |
| CN110500941A (en) * | 2019-08-27 | 2019-11-26 | 成都宏明电子股份有限公司 | A kind of straight-line displacement magneto-dependent sensor of RS485 linear convergent rate |
| CN110657825A (en) * | 2019-09-27 | 2020-01-07 | 成都宏明电子股份有限公司 | Water-proof, corrosion-proof and dust-proof magneto-sensitive angular displacement sensor |
| CN111458057A (en) * | 2020-04-20 | 2020-07-28 | 成都宏明电子股份有限公司 | High-precision force and linear displacement sensor and detection method thereof |
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| CN110487169A (en) * | 2019-08-27 | 2019-11-22 | 成都宏明电子股份有限公司 | Angular displacement magneto-dependent sensor for the output of multi-turn RS422 communication protocol |
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| CN110500941B (en) * | 2019-08-27 | 2024-05-14 | 成都宏明电子股份有限公司 | Linear displacement magneto-dependent sensor with RS485 linear output |
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| CN111458057A (en) * | 2020-04-20 | 2020-07-28 | 成都宏明电子股份有限公司 | High-precision force and linear displacement sensor and detection method thereof |
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Application publication date: 20190319 |