CN114543852A - Grating signal conditioning circuit, system and method - Google Patents
Grating signal conditioning circuit, system and method Download PDFInfo
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- G01D5/26—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
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- G01D5/347—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
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Abstract
The invention relates to a grating signal regulating circuit, which comprises an input end, a signal processing circuit and a signal processing circuit, wherein the input end comprises a channel for receiving a grating lossy signal and a channel for receiving a compensation voltage, and the compensation voltage is superposed on the grating lossy signal for input each time; the input port of the amplification module receives the grating lossy signal after the input end is superposed; the output end is connected with the output port of the amplification module, and the grating lossy signal is output from the output end after passing through the amplification module; the compensation voltage regulator is arranged on a channel for receiving the compensation voltage, and when a grating lossy signal is input into one channel of the input end, the compensation voltage regulator regulates the voltage value superposed on the grating lossy signal so as to regulate the DC bias of the superposed grating lossy signal to a position close to the DC bias of an ideal signal. The invention solves the problem that the grating signal can not be corrected in the limit environment of the prior art, and the circuit has universal applicability, is suitable for air application and is also suitable for application in the limit environment.
Description
Technical Field
The invention relates to the technical field of precision positioning, in particular to a circuit, a system and a method for adjusting a grating signal.
Background
The nano positioning platform under the extreme environment is widely applied to the front-edge fields of two-dimensional materials, graphene and the like. The limit environment can be an environment with ultrahigh/low temperature, ultrahigh vacuum, strong magnetic field and the like. One of the core parts of the nano positioning platform is a linear grating encoder, when the linear grating encoder and a grating ruler are assembled at proper relative positions, an analog quantity sin signal is output, and the quality of the analog signal directly determines the positioning precision.
In micro-nano precision positioning, the amplitude of an obtained grating signal is expected to be as large as possible under the condition of no distortion, so that the next-stage signal processing is facilitated. Ideally it is desirable that the amplitude of the curve of the analog signal is maximized without distortion as shown in figure 1. If the assembly of the nano-positioning stage in the air generates a distorted waveform as shown in fig. 2 and 3, the distortion can be adjusted by some physical means, for example, patent No. CN104057362A discloses a linear encoder and a method for adjusting the linear encoder, which proposes that an adjusting knob can be added on the nano-positioning stage or the encoder to adjust the mechanism to achieve the purpose of improving the grating waveform. However, in extreme environments, especially in ultra-low temperature and ultra-high temperature (such as 123mk-373k), mechanical deformation occurs in the mechanical device due to thermal expansion and cold contraction, so that the encoder, which has been adjusted to have a relative position in the air, is subjected to position shift, which causes distortion of grating signals, and thus the positioning accuracy of the nano positioning table is greatly reduced. The space size of the container meeting the limit environment is generally very small, so that the nano positioning table working in the limit environment is made as small as possible in order to save the space size, and obviously, a physical adjustment method cannot be used in the closed limit environment, so that the problem of signal distortion in the limit environment cannot be solved.
In summary, in the prior art, the grating signal can be well improved in the air by adopting a physical adjustment mode, but the problem of correcting the grating signal under the extreme environment condition cannot be solved, so that the nano positioning platform cannot keep good positioning performance under the extreme environment.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the problems in the prior art, and to provide a circuit, a system and a method for adjusting a grating signal, which can be integrated with a grating encoder and applied to the adjustment of the grating signal in a closed extreme environment, so as to keep the quality of the grating signal in an optimal state all the time, and solve the problem that the grating signal cannot be corrected in the extreme environment in the prior art.
To solve the above technical problem, the present invention provides a grating signal adjusting circuit for adjusting a lossy signal output by a grating encoder, including:
the input end comprises a channel for receiving the grating lossy signal and a channel for receiving the compensation voltage, and the compensation voltage is superposed on the grating lossy signal for input each time;
the input port of the amplification module receives the grating lossy signal after the input end is superposed;
the output end is connected with the output port of the amplification module, and the grating lossy signal passes through the amplification module and is output from the output end;
a compensation voltage regulator is arranged on the channel for receiving the compensation voltage, and the compensation voltage regulator is controlled by a controller;
when a grating lossy signal is input into one channel of the input end, the controller controls the compensation voltage regulator to regulate the voltage value superposed on the grating lossy signal, so that the DC bias of the superposed grating lossy signal is regulated to a position close to the DC bias of an ideal signal.
In one embodiment of the present invention, further comprising:
and one end of the gain adjuster is connected with the input port of the amplification module, the other end of the gain adjuster is connected with the output port of the amplification module, the gain adjuster is controlled by the controller, and the controller controls the gain adjuster to configure set gain for the amplification module so as to adjust the amplitude of the grating lossy signal to a position close to the ideal signal amplitude.
In one embodiment of the invention, the compensation voltage regulator and the gain regulator operate simultaneously.
In one embodiment of the invention, the compensation voltage regulator and the gain regulator do not operate simultaneously.
In an embodiment of the present invention, the optical fiber grating signal processing device further includes a matching resistor, and the input end of the matching resistor is provided with a channel for receiving the grating lossy signal and a channel for receiving the compensation voltage.
In addition, the invention also provides a raster signal adjusting method, which adopts the raster signal adjusting circuit, and comprises the following steps:
s10; inputting a grating lossy signal and a compensation voltage, and superposing the compensation voltage on the grating lossy signal to input the grating lossy signal to an amplification module;
s20; the controller controls the compensation voltage regulator to adjust the voltage value superposed on the grating lossy signal so as to adjust the DC bias of the superposed grating lossy signal to a position close to the DC bias of an ideal signal, and a grating repair signal is obtained;
s30; and outputting the grating repair signal.
In one embodiment of the present invention, in S20, the controller controls the voltage output by the compensation voltage regulator to increase or decrease such that the DC bias of the grating lossy signal superimposed with the compensation voltage increases or decreases accordingly, so that the DC bias of the grating lossy signal is adjusted to a position close to the DC bias of the ideal signal.
In an embodiment of the present invention, in S20, the amplification module is further connected to a gain adjuster, and the gain adjuster is controlled by the controller to configure a set gain for the amplification module, so as to adjust the amplitude of the grating lossy signal to a position close to the ideal signal amplitude.
In one embodiment of the present invention, the compensation voltage regulator and the gain regulator are simultaneously controlled by the controller to adjust the DC bias and the amplitude of the grating lossy signal in S20.
Moreover, the invention also provides a grating signal conditioning system, which comprises the grating signal conditioning circuit.
Compared with the prior art, the technical scheme of the invention has the following advantages:
the invention provides a grating signal regulating circuit which can be integrated with a grating encoder and simultaneously applied to grating signal regulation in a closed limit environment, so that the quality of a grating signal is always kept in an optimal state, a nanometer positioning platform can keep excellent positioning performance in the limit environment, the quality of the grating signal in the limit environment application is effectively improved, the nanometer positioning precision is ensured, and the problem that the grating signal cannot be corrected in the limit environment in the prior art is solved.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference will now be made in detail to the present disclosure, examples of which are illustrated in the accompanying drawings.
Fig. 1 is the grating output signal in the ideal case.
Fig. 2 is a raster output signal with the upper waveform clipped.
Fig. 3 is a grating output signal with the lower waveform clipped.
Fig. 4 is a schematic structural diagram of a raster signal conditioning circuit according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a raster signal conditioning circuit according to a second embodiment of the present invention.
Fig. 6 is a specific circuit schematic diagram of a raster signal conditioning circuit according to a second embodiment of the present invention.
Wherein the reference numerals are as follows: 100. an input end; 200. an amplifying module; 300. an output end; 400. a compensation voltage regulator; 500. a gain adjuster.
Detailed Description
The present invention is further described below in conjunction with the drawings and the embodiments so that those skilled in the art can better understand the present invention and can carry out the present invention, but the embodiments are not to be construed as limiting the present invention.
Example one
Referring to fig. 4, the present embodiment provides a grating signal conditioning circuit for conditioning a lossy signal output by a grating encoder, including:
an input terminal 100 including a channel for receiving the grating lossy signal and a channel for receiving the compensation voltage, and for inputting the compensation voltage by superimposing the compensation voltage on the grating lossy signal each time;
an amplifying module 200, an input port of which receives the grating lossy signal superimposed by the input end 100;
an output terminal 300 connected to the output port of the amplification module 200, wherein the grating lossy signal passes through the amplification module 200 and is output from the output terminal 300;
wherein, a compensation voltage regulator 400 is arranged on the channel for receiving the compensation voltage, and the compensation voltage regulator 400 is controlled by a controller;
when a grating lossy signal is input in one channel of the input terminal 100, the controller controls the compensation voltage regulator 400 to adjust the voltage value superimposed on the grating lossy signal, so that the DC offset of the superimposed grating lossy signal is adjusted to a position close to the DC offset of an ideal signal.
In the circuit for adjusting a grating signal disclosed in this embodiment, the circuit further includes a matching resistor, and the input terminal 100 is provided with the matching resistor on both a channel for receiving a grating lossy signal and a channel for receiving a compensation voltage, so that a circuit channel is stable, and a better signal input effect is achieved.
Specifically, when the DC offset of the grating lossy signal is adjusted, the controller controls the voltage output by the compensation voltage regulator 400 to increase or decrease, so that the DC offset of the grating lossy signal superimposed with the compensation voltage is increased or decreased, and the DC offset of the grating lossy signal is adjusted to a position close to the DC offset of the ideal signal, which is at the middle position of the full-scale range of the amplitude.
In summary, when the DC offset of the grating lossy signal is poor, the controller can control the compensation voltage regulator 400 to correct the DC offset of the grating lossy signal.
The invention provides a grating signal regulating circuit which can be integrated with a grating encoder and simultaneously applied to grating signal regulation in a closed limit environment, so that the quality of a grating signal is always kept in an optimal state, a nanometer positioning platform can keep excellent positioning performance in the limit environment, the quality of the grating signal in the limit environment application is effectively improved, the nanometer positioning precision is ensured, and the problem that the grating signal cannot be corrected in the limit environment in the prior art is solved.
Example two
Referring to fig. 5, the present embodiment provides a grating signal conditioning circuit for conditioning a lossy signal output by a grating encoder, including:
an input terminal 100 including a channel for receiving the grating lossy signal and a channel for receiving the compensation voltage, and for inputting the compensation voltage by superimposing the compensation voltage on the grating lossy signal each time;
an amplifying module 200, an input port of which receives the grating lossy signal superimposed by the input end 100;
a gain adjuster 500, one end of which is connected to the input port of the amplification module 200, and the other end of which is connected to the output port of the amplification module 200;
an output terminal 300 connected to the output port of the amplification module 200, wherein the grating lossy signal passes through the amplification module 200 and is output from the output terminal 300;
the compensation voltage regulator 400 is arranged on the channel for receiving the compensation voltage, and the compensation voltage regulator 400 and the gain regulator 500 are both controlled by a controller;
when a grating lossy signal is input in one channel of the input terminal 100, the controller controls the compensation voltage regulator 400 to adjust a voltage value superimposed on the grating lossy signal, so that a DC bias of the superimposed grating lossy signal is adjusted to a position close to a DC bias of an ideal signal, and/or controls the gain regulator 500 to configure a set gain for the amplification module 200, so as to adjust an amplitude of the grating lossy signal to a position close to an amplitude of the ideal signal.
In the circuit for adjusting a grating signal disclosed in this embodiment, the compensation voltage regulator 400 and the gain regulator 500 may operate simultaneously, that is, if the DC offset and the amplitude of the grating lossy signal are both poor, the compensation voltage regulator 400 and the gain regulator 500 may be controlled simultaneously to correct the DC offset and the amplitude of the grating lossy signal.
In summary, when the DC offset and the amplitude of the grating lossy signal are both poor, the controller can control the compensation voltage regulator 400 and the gain regulator 500 simultaneously to correct the DC offset and the amplitude of the grating lossy signal. Therefore, the grating signal quality can be always kept in an optimal state, the nanometer positioning platform can keep excellent positioning performance in a limit environment, the grating signal quality in the limit environment application is effectively improved, the nanometer positioning precision is ensured, and the problem that the grating signal cannot be corrected in the limit environment in the prior art is solved.
In the circuit for adjusting a grating signal disclosed in this embodiment, the compensation voltage regulator 400 and the gain regulator 500 may not operate simultaneously, that is, if only the DC offset of the grating lossy signal is relatively poor, the compensation voltage regulator 400 may be controlled to correct the DC offset of the grating lossy signal alone, and if only the amplitude of the grating lossy signal is relatively poor, the gain regulator 500 may be controlled to correct the amplitude of the grating lossy signal alone.
To better illustrate a raster signal conditioning circuit proposed by the present invention, the present embodiment provides a specific circuit as shown in fig. 6, which includes an input terminal 100, an amplifier, an output terminal 300, and a gain adjuster 500. Specifically, the input terminal 100 includes two channels, one of the channels is used for inputting a compensation voltage V1, the compensation voltage regulator 400 is disposed on the channel, the other channel is used for inputting a grating lossy signal V2, the compensation voltage V1 is superimposed on the grating lossy signal V2 and then input to the forward input port Vin of the amplifier each time, the DC level Vin of the Vin signal is V1+ V2, the controller issues an instruction to control the compensation voltage output by the compensation voltage regulator 400 (which may be a DAC or an adjustable resistor divider) to increase or decrease, at this time, the DC offset of the Vin of the grating lossy signal V2 superimposed with the compensation voltage V1 is increased or decreased, so that the DC offset of the grating lossy signal V2 can be adjusted to a position close to the DC offset of an ideal signal, and thus the problem of DC offset of the grating lossy signal is solved. On the other hand, the negative input port of the amplifier is connected to the Gain adjuster 500, the other end of the Gain adjuster 500 is connected to the output port of the amplifier, the controller issues an instruction to control the Gain adjuster 500 to configure the amplifier to a specified Gain, so that the grating lossy signal is amplified to a reasonable amplitude range, and thus the problem that the grating signal is weakened is solved, and the grating repair signal Vout output by the output terminal 300 can be expressed as Vout-Gain (V1+ V2).
EXAMPLE III
Corresponding to the first embodiment, an embodiment of the present invention provides a method for adjusting a grating signal, which uses the grating signal adjusting circuit according to the first embodiment, and includes the following steps:
s10; inputting a grating lossy signal and a compensation voltage, and superposing the compensation voltage on the grating lossy signal to input the grating lossy signal to the amplifying module 200;
s20; the controller controls the compensation voltage regulator 400 to adjust the voltage value superposed on the grating lossy signal, so that the DC bias of the superposed grating lossy signal is adjusted to a position close to the DC bias of an ideal signal, and a grating repair signal is obtained;
s30; and outputting the grating repair signal.
Specifically, in S20, the controller controls the voltage output by the compensation voltage regulator 400 to increase or decrease such that the DC bias of the grating lossy signal superimposed with the compensation voltage increases or decreases accordingly, so that the DC bias of the grating lossy signal is adjusted to a position close to the DC bias of the ideal signal.
The invention provides a grating signal adjusting method, which can keep the quality of a grating signal in an optimal state all the time, so that a nano positioning platform can keep excellent positioning performance under a limit environment, the quality of the grating signal applied in the limit environment is effectively improved, the nano positioning precision is ensured, the problem that the grating signal cannot be corrected under the limit environment in the prior art is solved, and the circuit has general applicability, is suitable for air application and is also suitable for application under the limit environment.
Example four
Corresponding to the second embodiment, an embodiment of the present invention provides a method for adjusting a grating signal, which uses the grating signal adjusting circuit according to the second embodiment, and includes the following steps:
s10; inputting a grating lossy signal and a compensation voltage, and superposing the compensation voltage on the grating lossy signal to input the grating lossy signal to the amplifying module 200;
s20; the controller controls the compensation voltage regulator 400 to adjust the voltage value superimposed on the grating lossy signal, so that the DC bias of the superimposed grating lossy signal is adjusted to a position close to the DC bias of an ideal signal, and/or the controller controls the gain regulator 500 to configure a set gain for the amplification module 200, so as to adjust the amplitude of the grating lossy signal to a position close to the amplitude of the ideal signal, and obtain a grating repair signal;
s30; and outputting the grating repair signal.
Specifically, in S20, the amplification module 200 is further connected to a gain adjuster 500, and the gain adjuster 500 is controlled by the controller to configure the amplification module 200 with a set gain, so as to adjust the amplitude of the grating lossy signal to a position close to the ideal signal amplitude,
in one embodiment of the present invention, the compensation voltage regulator 400 and the gain regulator 500 are simultaneously controlled by the controller to adjust the DC bias and amplitude of the grating lossy signal in S20. When both the DC offset and the amplitude of the grating lossy signal are poor, the compensation voltage regulator 400 and the gain regulator 500 may be controlled simultaneously to correct the DC offset and the amplitude of the grating lossy signal, or the compensation voltage regulator 400 and the gain regulator 500 may be controlled separately. For example, if only the DC offset of the grating lossy signal is relatively poor, the compensation voltage regulator 400 may be controlled alone to correct the DC offset of the grating lossy signal, and, for the same reason, if only the amplitude of the grating lossy signal is relatively poor, the gain regulator 500 may be controlled alone to correct the amplitude of the grating lossy signal.
In summary, the method provided in this embodiment can perform corresponding signal correction according to the actual defect of the grating lossy signal, so that the quality of the grating signal is always kept in an optimal state, and the nano positioning platform can also keep excellent positioning performance in a limit environment, thereby effectively improving the quality of the grating signal in the limit environment application, ensuring the nano positioning accuracy, and solving the problem that the grating signal cannot be corrected in the limit environment in the prior art.
EXAMPLE five
Corresponding to the embodiment of the circuit, the embodiment of the present invention further provides a raster signal conditioning system, which includes the raster signal conditioning circuit as described above, and has all the benefits of the raster signal conditioning circuit.
The grating signal adjusting system provided by the embodiment can be integrated with a grating encoder and simultaneously applied to grating signal adjustment in a closed limit environment, so that the quality of grating signals is always kept in an optimal state, a nanometer positioning platform can keep excellent positioning performance in the limit environment, the quality of the grating signals in the limit environment application is effectively improved, the nanometer positioning precision is ensured, the problem that the grating signals cannot be corrected in the limit environment in the prior art is solved, and the circuit has universal applicability, is applicable to air application and is also applicable to application in the limit environment.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (10)
1. A grating signal conditioning circuit for conditioning a lossy signal output by a grating encoder, comprising:
the input end comprises a channel for receiving the grating lossy signal and a channel for receiving the compensation voltage, and the compensation voltage is superposed on the grating lossy signal for input each time;
the input port of the amplification module receives the grating lossy signal superposed by the input end;
the output end is connected with the output port of the amplification module, and the grating lossy signal passes through the amplification module and is output from the output end;
and when a grating lossy signal is input in one channel of the input end, the compensation voltage regulator adjusts the voltage value superposed on the grating lossy signal so as to adjust the DC bias of the superposed grating lossy signal to a position close to the DC bias of an ideal signal.
2. The raster signal conditioning circuit of claim 1 further comprising:
and one end of the gain adjuster is connected with the input port of the amplification module, the other end of the gain adjuster is connected with the output port of the amplification module, and the gain adjuster is used for configuring set gain for the amplification module so as to adjust the amplitude of the grating lossy signal to a position close to the ideal signal amplitude.
3. The raster signal conditioning circuit of claim 2, wherein: the compensation voltage regulator and the gain regulator operate simultaneously.
4. The raster signal conditioning circuit of claim 2, wherein: the compensation voltage regulator and the gain regulator do not operate simultaneously.
5. The raster signal conditioning circuit of claim 1, wherein: the grating loss signal detection circuit further comprises matching resistors, and the input end of each of the matching resistors is arranged on a channel for receiving grating loss signals and a channel for receiving compensation voltage.
6. A raster signal conditioning method, characterized in that it employs a raster signal conditioning circuit according to any of claims 1 to 5, comprising the steps of:
s10; inputting a grating lossy signal and a compensation voltage, and superposing the compensation voltage on the grating lossy signal to input the grating lossy signal to an amplification module;
s20; the compensation voltage regulator adjusts a voltage value superposed on the grating lossy signal so as to adjust the DC bias of the superposed grating lossy signal to a position close to the DC bias of an ideal signal, and a grating repair signal is obtained;
s30; and outputting the grating repair signal.
7. The method of claim 6, wherein: in S20, the compensation voltage regulator adjusts the compensation voltage output by the compensation voltage regulator to increase or decrease, so that the DC bias of the grating lossy signal superimposed with the compensation voltage is increased or decreased, so that the DC bias of the grating lossy signal is adjusted to a position close to the DC bias of the ideal signal.
8. The method of claim 6, wherein: in S20, the amplifying module is further connected to a gain adjuster, where the gain adjuster configures the amplifying module with a set gain to adjust the amplitude of the grating lossy signal to a position close to the ideal signal amplitude.
9. The method of claim 8, wherein: in S20, the compensation voltage regulator and the gain regulator simultaneously adjust the DC bias and amplitude of the grating lossy signal.
10. A grating signal conditioning system, characterized by: comprising a raster signal conditioning circuit as claimed in any of the claims 1-5.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113915A (en) * | 2007-09-07 | 2008-01-30 | 中国科学院长春光学精密机械与物理研究所 | Absolute type photoelectric shaft-position encoder signal self-adapting pick-up circuit |
| CN101131329A (en) * | 2006-08-22 | 2008-02-27 | 松下电器产业株式会社 | Correction circuit for coder signal |
| CN101140172A (en) * | 2006-09-06 | 2008-03-12 | 夏普株式会社 | Optical encoder |
| CN102967322A (en) * | 2012-12-04 | 2013-03-13 | 中国南方航空工业(集团)有限公司 | Method for restoring signal source of grating reading system |
| CN103090799A (en) * | 2011-10-28 | 2013-05-08 | 株式会社三丰 | Displacement Detecting Device, Displacement Detecting Method, And Computer-readable Medium |
| CN105549468A (en) * | 2015-12-17 | 2016-05-04 | 华中科技大学 | Grating signal simulated generator |
| US20180348892A1 (en) * | 2017-06-01 | 2018-12-06 | Hyundai Motor Company | Sensing system and method for improving control of a sensor detection value |
| CN208653403U (en) * | 2018-03-26 | 2019-03-26 | 磐石电气（常州）有限公司 | A kind of digital displacement transducer |
| DE102018108956A1 (en) * | 2018-04-16 | 2019-10-17 | Jungheinrich Aktiengesellschaft | Method for operating an optical sensor unit of an industrial truck and an optical sensor unit |
| CN111765913A (en) * | 2020-07-22 | 2020-10-13 | 中国科学院长春光学精密机械与物理研究所 | Absolute measuring ring photoelectric encoder based on digital potentiometer |
-
2021
- 2021-12-30 CN CN202111670052.6A patent/CN114543852A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101131329A (en) * | 2006-08-22 | 2008-02-27 | 松下电器产业株式会社 | Correction circuit for coder signal |
| CN101140172A (en) * | 2006-09-06 | 2008-03-12 | 夏普株式会社 | Optical encoder |
| CN101113915A (en) * | 2007-09-07 | 2008-01-30 | 中国科学院长春光学精密机械与物理研究所 | Absolute type photoelectric shaft-position encoder signal self-adapting pick-up circuit |
| CN103090799A (en) * | 2011-10-28 | 2013-05-08 | 株式会社三丰 | Displacement Detecting Device, Displacement Detecting Method, And Computer-readable Medium |
| CN102967322A (en) * | 2012-12-04 | 2013-03-13 | 中国南方航空工业(集团)有限公司 | Method for restoring signal source of grating reading system |
| CN105549468A (en) * | 2015-12-17 | 2016-05-04 | 华中科技大学 | Grating signal simulated generator |
| US20180348892A1 (en) * | 2017-06-01 | 2018-12-06 | Hyundai Motor Company | Sensing system and method for improving control of a sensor detection value |
| CN108982957A (en) * | 2017-06-01 | 2018-12-11 | 现代自动车株式会社 | For improving the sensing system and method for the control of sensor detected value |
| CN208653403U (en) * | 2018-03-26 | 2019-03-26 | 磐石电气（常州）有限公司 | A kind of digital displacement transducer |
| DE102018108956A1 (en) * | 2018-04-16 | 2019-10-17 | Jungheinrich Aktiengesellschaft | Method for operating an optical sensor unit of an industrial truck and an optical sensor unit |
| CN111765913A (en) * | 2020-07-22 | 2020-10-13 | 中国科学院长春光学精密机械与物理研究所 | Absolute measuring ring photoelectric encoder based on digital potentiometer |
Non-Patent Citations (1)
| Title |
|---|
| 沈思博,万秋华,杜颖财等: "高精度光电编码器信号补偿技术的研究进展", 电子技术应用, vol. 43, no. 10, pages 26 - 30 * |
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