CN205879096U - Capacitive gate absolute value transducer - Google Patents
Capacitive gate absolute value transducer Download PDFInfo
- Publication number
- CN205879096U CN205879096U CN201620853717.5U CN201620853717U CN205879096U CN 205879096 U CN205879096 U CN 205879096U CN 201620853717 U CN201620853717 U CN 201620853717U CN 205879096 U CN205879096 U CN 205879096U
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- magnetic sensor
- transducer
- absolute value
- motor axis
- grid
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- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model provides a capacitive gate absolute value transducer, it is miniaturized to do benefit to the motor. Including being located the motor axis pore that capacitive gate absolute value transducer central point put, the inner circle that comprises a slice magnetic sensor hangs down the precision nibble, and the outer lane high accuracy part of constituteing by capacitive gate transducer, magnetic sensor specifically is located the centraxonial axle head of motor, capacitive gate transducer centering on magnetic sensor is branch distributions such as circumference. Perhaps, the inner circle that comprises at least two magnetic sensor hangs down the precision nibble, and the outer lane high accuracy part of constituteing by capacitive gate transducer, magnetic sensor distributes in the outside in motor axis pore, and capacitive gate transducer is centering on the inner circle that magnetic sensor constitutes is branch distributions such as circumference. The utility model discloses a capacitive gate absolute value transducer, the magnetic sensor organic through capacitive gate transducer with the high accuracy and low precision combines, can export the absolute position of the high accuracy of rotatory device, for machine controller as feedback input.
Description
[technical field]
This utility model relates to industrial code sensor field, especially holding grid absolute value transducer.
[background technology]
Existing appearance grid absolute value transducer, is usually and uses Internal and external cycle mode to solve absolute value test problems.Hold grid exhausted
Value sensor is included outer ring high accuracy part (carefully circle) and the low precision nibble of inner ring (slightly circle).The high accuracy part of outer ring is by electricity
One circle of machine is divided into 30 to 128 parts, when motor rotation is turned around, by the output of detection outer ring capacitance sensor, can export phase
Answer 30 to 128 ripples the most profound, it is achieved high-precision position encoded.But uniquely rely on the capacitance sensor of outer ring, can only accomplish
Relative value position is detected, and namely can detect current location has turned over how many angles relative to last time detection, and can not
Detection absolute position.For identifying absolute position, namely detection is current in which the most profound high-precision ripple, in this needs exist for
The low precision nibble of circle, realizes the function of corresponding part.
Existing appearance grid absolute value transducer is due to the technology of Internal and external cycle to be used, it is contemplated that for ensureing capacitor grid transducer
Precision, the sensor of each part needs to ensure there is certain electric capacity width, causes existing technical scheme can not do very
Little, it is unfavorable for motor miniaturization.
[utility model content]
This utility model provides appearance grid absolute value transducer, in order to solve existing appearance grid absolute value transducer owing to adopt
By the technology of Internal and external cycle, for ensureing the precision of capacitor grid transducer, the sensor of each part needs to ensure there is certain electric capacity
Width, that causes that existing technical scheme can not do is the least, the problem being unfavorable for motor miniaturization.
A kind of appearance grid absolute value transducer of the present utility model, including: it is positioned at described appearance grid absolute value transducer centre bit
The motor axis duct put, for being connected with motor axis；The low precision nibble of inner ring being made up of a piece of Magnetic Sensor；And by
The outer ring high accuracy part of capacitor grid transducer composition；Wherein, described Magnetic Sensor is particularly located at the axle head of motor axis, described
Capacitor grid transducer round described Magnetic Sensor, circumferentially decile distribution.
Another kind of appearance grid absolute value transducer of the present utility model, including: it is positioned at described appearance grid absolute value transducer center
The motor axis duct of position, for being connected with motor axis；The low precision nibble of inner ring being made up of at least two Magnetic Sensors；
And the outer ring high accuracy part being made up of capacitor grid transducer；Wherein, described Magnetic Sensor is distributed in motor axis duct
Outside, the inner ring that described capacitor grid transducer is constituted round described Magnetic Sensor, circumferentially decile distribution.
Wherein, described Magnetic Sensor circumferentially decile is distributed in the outside in motor axis duct.
Appearance grid absolute value transducer of the present utility model, by sensing the magnetic of high-precision capacitor grid transducer and low precision
Device organically combines, and can export the high-precision absolute position of rotary device, to electric machine controller as feed back input.
[accompanying drawing explanation]
Fig. 1 is the structural representation holding grid absolute value transducer in this utility model embodiment 1；
Fig. 2 is the structural representation holding grid absolute value transducer in this utility model embodiment 2；
Fig. 3 be this utility model embodiment detection waveform in hold the waveform of gate part；
Fig. 4 be this utility model embodiment detection waveform in the waveform of Magnetic Sensor.
[detailed description of the invention]
Embodiment 1, the appearance grid absolute value transducer of the present embodiment, shown in Figure 1, including:
It is positioned at the motor axis duct 11 holding grid absolute value transducer 1 center, for being connected with motor axis；By one
The low precision nibble of inner ring that sheet Magnetic Sensor 12 is constituted；And the outer ring high accuracy part being made up of capacitor grid transducer 13.Wherein,
Magnetic Sensor 12 is particularly located at the axle head of motor axis, the i.e. middle part in motor axis duct 11, the present embodiment in implementing
In single Magnetic Sensor install from axle head.Capacitor grid transducer 13 is distributed round Magnetic Sensor 12 circumferentially decile.
Visible, the inner ring of the present embodiment uses Magnetic Sensor, it is provided that slightly draw a circle to approve bit function.The precision needed according to thick circle,
The present embodiment uses 1 Magnetic Sensor.Outer ring is accurately positioned employing capacitor grid transducer.Due to inner ring Magnetic Sensor volume relatively
Little so that the volume of device entirety can significantly reduce.
Embodiment 2, the appearance grid absolute value transducer of the present embodiment, shown in Figure 2, including:
It is positioned at the motor axis duct 21 holding grid absolute value transducer 2 center, for being connected with motor axis；By extremely
The low precision nibble of inner ring that few two Magnetic Sensors 22 are constituted；And the outer ring high accuracy part being made up of capacitor grid transducer 23.
Wherein, Magnetic Sensor 22 circumferentially decile or non-decile are distributed in the outside in motor axis duct, this reality in implementing
Many the Magnetic Sensors executed in example are arranged on axle side.The inner ring that capacitor grid transducer 23 is constituted round Magnetic Sensor, circumferentially etc.
Distribution.
Visible, the inner ring of the present embodiment uses Magnetic Sensor, it is provided that slightly draw a circle to approve bit function.The precision needed according to thick circle,
The present embodiment uses multiple Magnetic Sensor.Outer ring is accurately positioned employing capacitor grid transducer.Magnetic Sensor volume due to inner ring
Less so that the volume of device entirety can significantly reduce.
The detection waveform that appearance grid absolute value transducer based on above-described embodiment 1 or embodiment 2 obtains, as shown in Figure 3
For holding the waveform of gate part, Fig. 4 show the waveform of Magnetic Sensor.By the process to two groups of waveforms, can demodulate current exhausted
To position.
Description the most of the present utility model and application are the most illustrative and exemplary, are not intended to this practicality is new
The scope of type limits in the above-described embodiments.The deformation of embodiments disclosed herein and change are entirely possible, for that
For a little those of ordinary skill in the art, the various parts with equivalence of replacing of embodiment are all known.Art technology
Personnel are it should also be clear that in the case of without departing from spirit or essential characteristics of the present utility model, this utility model is permissible
In other forms, structure, layout, ratio, and realize with other assembly, material and parts, and without departing from this practicality
In the case of novel scope and spirit, embodiments disclosed herein can be carried out other deformation and change.
Claims (3)
1. one kind is held grid absolute value transducer, it is characterised in that including: be positioned at described appearance grid absolute value transducer center
Motor axis duct, for being connected with motor axis；The low precision nibble of inner ring being made up of a piece of Magnetic Sensor；And by holding grid
The outer ring high accuracy part of sensor composition；Wherein, described Magnetic Sensor is particularly located at the axle head of motor axis, described appearance
Gate sensor is round described Magnetic Sensor, and circumferentially decile is distributed.
2. one kind is held grid absolute value transducer, it is characterised in that including: be positioned at described appearance grid absolute value transducer center
Motor axis duct, for being connected with motor axis；The low precision nibble of inner ring being made up of at least two Magnetic Sensors；And by
The outer ring high accuracy part of capacitor grid transducer composition；Wherein, described Magnetic Sensor is distributed in the outside in motor axis duct, institute
The inner ring that the capacitor grid transducer stated is constituted round described Magnetic Sensor, circumferentially decile distribution.
3. appearance grid absolute value transducer as claimed in claim 2, it is characterised in that described Magnetic Sensor circumferentially decile divides
Cloth is in the outside in motor axis duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620853717.5U CN205879096U (en) | 2016-08-09 | 2016-08-09 | Capacitive gate absolute value transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620853717.5U CN205879096U (en) | 2016-08-09 | 2016-08-09 | Capacitive gate absolute value transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205879096U true CN205879096U (en) | 2017-01-11 |
Family
ID=57701052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620853717.5U Active CN205879096U (en) | 2016-08-09 | 2016-08-09 | Capacitive gate absolute value transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205879096U (en) |
-
2016
- 2016-08-09 CN CN201620853717.5U patent/CN205879096U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qian Wei Inventor after: Lv Yuechuan Inventor after: Du Zhaohui Inventor after: Yang Yirong Inventor before: Qian Wei Inventor before: Lv Yuechuan |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170509 Address after: 523000, A factory building, 3 Industrial Road, Songshan industrial high tech Industrial Development Zone, Guangdong, Dongguan Patentee after: Guangdong Yingdong Gaoke Automation Co., Ltd. Address before: 100083 room 602B, room, No. 2 Jing Yuan Road, Beijing, Haidian District Patentee before: BEIJING ZHILIAN'AN TECHNOLOGY CO., LTD. |