WO2016123837A1 - 基于螺旋电阻器的位移测量装置和方法 - Google Patents

基于螺旋电阻器的位移测量装置和方法 Download PDF

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Publication number
WO2016123837A1
WO2016123837A1 PCT/CN2015/073833 CN2015073833W WO2016123837A1 WO 2016123837 A1 WO2016123837 A1 WO 2016123837A1 CN 2015073833 W CN2015073833 W CN 2015073833W WO 2016123837 A1 WO2016123837 A1 WO 2016123837A1
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WIPO (PCT)
Prior art keywords
resistor
measured object
module
resistance
spiral
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Ceased
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PCT/CN2015/073833
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English (en)
French (fr)
Inventor
张贯京
张俊然
普拉纽克克里斯基捏
古列莎艾琳娜
穆桑特卢卡
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Shenzhen Qianhai AnyCheck Information Technology Co Ltd
E Techno Information Technologies Co Ltd
Bio Tech Academy China Co Ltd
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Shenzhen Qianhai AnyCheck Information Technology Co Ltd
E Techno Information Technologies Co Ltd
Bio Tech Academy China Co Ltd
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Publication of WO2016123837A1 publication Critical patent/WO2016123837A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness

Definitions

  • the present invention relates to the field of life health technologies, and in particular, to a displacement measuring device and method based on a spiral resistor.
  • variable resistor applications have been widely used, such as changing the characteristics of a signal generator, dimming a light, starting a motor or controlling its rotational speed, etc., which typically include a resistor body, a movable contact, and three pins. Two fixed pins are connected to the two ends of the resistor body, and the other pin (center tap) is connected to the movable contact, and the movable contact moves linearly along the resistor body to change the resistance of the resistor body.
  • the existing variable resistors are difficult to meet the accuracy requirements; and for the measurement of the displacement of the measured object, the commonly used method is only an intuitive ranging method, and cannot achieve high precision. Displacement measurement.
  • a primary object of the present invention is to provide a displacement measuring device based on a spiral resistor that achieves high-precision measurement of displacement of an object to be measured.
  • the present invention provides a spiral resistor-based displacement measuring device including a position sensing module, a control module, a driving module, and a spiral track resistance:
  • the position sensing module is connected to the control module, and is configured to sense a position signal of the measured object, and send the position signal to the control module;
  • the control module is connected to the driving module, configured to control the driving module to drive the spiral track resistance movement according to the position signal; and determine the current position value of the measured object according to the output resistance value of the spiral track resistance And determining a displacement offset of the measured object according to a current position value of the measured object and an initial position value of the measured object;
  • the spiral track resistance is connected to the driving module, and is driven by the driving module to change an output resistance value to determine a current position value of the measured object.
  • the spiral resistor-based displacement measuring device further includes a deceleration module connected to the driving module, and the deceleration module is configured to reduce a rotation speed of the driving module.
  • the spiral resistor-based displacement measuring device further includes a signal processing module, an output end of the spiral track resistance is electrically connected to an input end of the signal processing module, an output end of the signal processing module is The control module is electrically connected, and the signal processing module is configured to perform signal conversion, signal amplification, and A/D conversion on the output resistance value.
  • control module is specifically configured to:
  • the spiral resistor-based displacement measuring device further includes a deceleration module connected to the driving module, and the deceleration module is configured to reduce a rotation speed of the driving module.
  • the spiral resistor-based displacement measuring device further includes a signal processing module, an output end of the spiral track resistance is electrically connected to an input end of the signal processing module, an output end of the signal processing module is The control module is electrically connected, and the signal processing module is configured to perform signal conversion, signal amplification, and A/D conversion on the output resistance value.
  • the spiral track resistance comprises a resistor body, a resistor complex and a resistance pointer:
  • the surface of the resistor body is provided with a first thread; the resistor mating body is sleeved on the resistor body, and the resistor mating body is provided with a second thread adapted to the first thread; The first end is fixed on the resistance matching body, and the second end of the resistance pointer is in contact with the surface of the first thread;
  • the resistor body is connected to the driving module, and the resistor body is driven to move under the driving of the driving module, and the resistor matching body drives the resistor pointer to move along the surface of the first thread to change The output resistance value of the spiral track resistance.
  • the spiral resistor-based displacement measuring device further includes a deceleration module connected to the driving module, and the deceleration module is configured to reduce a rotation speed of the driving module.
  • the spiral resistor-based displacement measuring device further includes a signal processing module, an output end of the spiral track resistance is electrically connected to an input end of the signal processing module, an output end of the signal processing module is The control module is electrically connected, and the signal processing module is configured to perform signal conversion, signal amplification, and A/D conversion on the output resistance value.
  • the present invention also provides a displacement measuring method using a helical resistor-based displacement measuring device, the displacement measuring method comprising the following steps:
  • the position sensing module senses a position signal of the measured object, and sends the position signal to the control module;
  • the control module controls the driving module to drive the spiral track resistance movement according to the position signal to change the output resistance value of the spiral track resistance
  • control module determines the current position value of the measured object according to the output resistance value of the spiral track resistance, and determines the current position value of the measured object and the initial position value of the measured object. The displacement offset of the measured object.
  • the spiral resistor-based displacement measuring method further comprises the following steps:
  • the signal processing module performs signal conversion, signal amplification and A/D conversion on the output resistance value of the spiral track resistance.
  • control module determines a current position value of the measured object according to an output resistance value of the spiral track resistance, and determines the measured object according to the current position value of the measured object and the initial position value of the measured object.
  • the steps of shifting the offset include:
  • the spiral resistor-based displacement measuring method further comprises the following steps:
  • the signal processing module performs signal conversion, signal amplification and A/D conversion on the output resistance value of the spiral track resistance.
  • the spiral track resistance comprises a resistor body, a resistor matching body and a resistance pointer; the resistor body surface is provided with a first thread; the resistor matching body is sleeved on the resistor body, and the resistor body is disposed a second thread adapted to the first thread; a first end of the resistance pointer is fixed to the resistor mating body, and a second end of the resistor pointer is in contact with a surface of the first thread;
  • the step of controlling, by the control module, the driving module to drive the spiral track resistance movement according to the position signal to change the output resistance value of the spiral track resistance comprises:
  • the control module controls, according to the position signal, the resistance body movement of the driving module to drive the spiral track resistance
  • the resistor mating body is moved by the resistor body to move the resistor pointer along the surface of the first thread to change the output resistance value of the spiral track resistance.
  • the spiral resistor-based displacement measuring method further comprises the following steps:
  • the signal processing module performs signal conversion, signal amplification and A/D conversion on the output resistance value of the spiral track resistance.
  • the invention adopts the above technical solution, and the position sensing module senses the position signal of the measured object when the detected moving object moves and sends the position signal to the control module, and the control module controls the driving module to drive the spiral track resistance motion according to the position signal, and is in the measured object.
  • the current position value of the object to be measured is determined according to the output resistance value of the spiral track resistance
  • the displacement offset of the object to be measured is determined according to the current position value of the object to be measured and the initial position value of the object to be measured.
  • the displacement of the object to be measured is determined according to the correspondence between the output resistance value of the spiral track resistance and the position of the object to be measured, and high-precision measurement of the displacement of the object to be measured is realized.
  • FIG. 1 is a schematic structural view of a first embodiment of a displacement measuring device based on a spiral resistor according to the present invention
  • FIG. 2 is a schematic structural view of the spiral track resistance of FIG. 1;
  • FIG. 3 is a schematic structural view of a preferred embodiment of the resistor main body and the resistor matching body of the spiral track resistance in FIG. 2;
  • FIG. 4 is a schematic structural view of a preferred embodiment of a first embodiment of a displacement measuring device based on a spiral resistor according to the present invention
  • FIG. 5 is a schematic structural view of a second embodiment of a displacement measuring device based on a spiral resistor according to the present invention.
  • FIG. 6 is a schematic structural view of a third embodiment of a displacement measuring device based on a spiral resistor
  • FIG. 7 is a schematic flow chart of a first embodiment of a displacement measuring method based on a spiral resistor according to the present invention.
  • step S20 in FIG. 7 is a schematic flowchart of the refinement of step S20 in FIG. 7;
  • step S30 in FIG. 7 is a schematic flowchart of the refinement of step S30 in FIG. 7;
  • FIG. 10 is a schematic flow chart of a second embodiment of a displacement measuring method based on a spiral resistor according to the present invention.
  • the invention provides a displacement measuring device based on a spiral resistor, which determines the displacement offset of the object to be measured by the output resistance value of the spiral track resistance, so as to achieve high-precision measurement of the displacement of the object to be measured.
  • FIG. 1 is a schematic structural view of a first embodiment of a displacement measuring device based on a spiral resistor according to the present invention.
  • the spiral resistance-based displacement measuring device includes: a position sensing module 10, a control module 20, a driving module 30, and a spiral track resistance 40:
  • the position sensing module 10 is connected to the control module 20 for sensing the position signal of the measured object and transmitting the position signal to the control module 20;
  • the control module 20 is connected to the driving module 30 for controlling the driving module 30 to drive the spiral track resistance 40 according to the position signal; and determining the current position value of the measured object according to the output resistance value of the spiral track resistance 40, and according to the measured The current position value of the object and the initial position value of the measured object determine the displacement offset of the measured object;
  • the spiral track resistance 40 is connected to the driving module 30, and is driven by the driving module 30 to change the output resistance value to determine the current position value of the measured object.
  • the position sensing module 10 is configured to sense the current position of the measured object, and convert the sensed position signal into an electrical signal and send the signal to the control module 20.
  • the position of the measured object may be represented by a corresponding coordinate or a mark capable of marking the position.
  • the position sensing module 10 can be a fixed sensing device. When the measured object moves within a certain range, the current position of the measured object is recorded in real time through the position sensing module 10; the position sensing module 10 can also be an active setting. That is, it moves at the same time as the measured object, and records the current position of the measured object in real time.
  • the driving module 30 is configured to drive the spiral track resistance 40 to move.
  • the driving module 30 can be selected as a motor.
  • the stepping motor is preferred. The smaller the step size of the stepping motor, the higher the measurement accuracy. The design measurement accuracy should be considered comprehensively.
  • the stepping motor can be selected to have a step size of 0.5 or 0.75 to ensure precise measurement of the minute displacement of the object to be measured.
  • the initial position of the object to be measured is pre-marked, that is, the object to be measured is in the initial position in the initial state, and the output resistance value corresponding to the spiral track resistance 40 is the initial resistance value at the initial position.
  • the position sensing module 10 records the current position of the measured object in real time, and converts the current position where the measured object is located into an electrical signal and sends it to the control module 20; in the process of moving the measured object, The control module 20 generates a corresponding control signal according to the position signal, and controls the driving module 30 to drive the spiral track resistance 40 to move.
  • the control module 20 determines the current position of the measured object according to the output resistance value of the spiral track resistance 40 and the correspondence between the output resistance value and the position of the measured object. The value is then determined based on the determined current position value of the measured object and the initial position value of the measured object. The amount of deviation of the measured object.
  • the control module 20 acquires an initial position value of the object to be measured, and an initial resistance value corresponding to the spiral track resistance 40 at this time; since the current output resistance value of the spiral track resistance 40 is known when the object to be tested stops moving, Therefore, according to the correspondence between the output resistance value of the spiral track resistance 40 and the position value of the measured object, the correspondence relationship is a linear relationship, and the current position value of the measured object can be determined; and then, according to the current position value of the measured object and The distance between the initial position values of the measured object determines the displacement offset of the measured object.
  • the position sensing module 10 senses the position signal of the measured object when the moving object is moved and sends the position signal to the control module 20, and the control module 20 controls the driving module 30 to drive the spiral track resistance 40 according to the position signal, and is tested.
  • the current position value of the object to be measured is determined according to the output resistance value of the spiral track resistance 40
  • the displacement offset of the object to be measured is determined according to the current position value of the object to be measured and the initial position value of the object to be measured.
  • the displacement of the object to be measured is determined according to the correspondence relationship between the output resistance value of the spiral track resistance 40 and the position of the object to be measured, and high-precision measurement of the displacement of the object to be measured is realized.
  • FIG. 2 is a schematic structural view of the spiral track resistance of FIG. 1;
  • FIG. 3 is a schematic structural view of a preferred embodiment of the resistance body of the middle spiral track resistance and the resistor matching body.
  • the spiral track resistance 40 includes a resistance body 401, a resistance partner 402, and a resistance pointer 403, wherein:
  • the surface of the resistor body 401 is provided with a first thread 4011; the resistor mating body 402 is sleeved on the resistor body 401, and the resistor mating body 402 is provided with a second thread 4021 adapted to the first thread 4011; the first end 4031 of the resistor pointer 403 Fixed to the resistor mating body 402, the second end 4032 of the resistive pointer 403 is in contact with the surface of the first thread 4011.
  • the resistor body 401 and the resistor body 402 are coupled to each other.
  • the resistor body 402 is sleeved on the resistor body 401.
  • the resistor body 401 is configured as a screw structure.
  • the surface of the resistor body 401 is provided with a first thread 4011.
  • the resistor body 402 is provided as a nut.
  • the inner surface of the resistor mating body 402 is provided with a second thread 4021 adapted to the first thread 4011.
  • the first thread 4011 is engaged with the second thread 4021; the first end 4031 of the resistive pointer 403 and the first end of the resistor body 401
  • the surface of the thread 4011 is in contact with the second end 4032 of the resistor pointer 403, which is fixed to the resistor mating body 402, and specifically can be disposed on the second thread 4021.
  • FIG. 4 is a schematic structural view of a preferred embodiment of a first embodiment of a displacement measuring device based on a spiral resistor according to the present invention.
  • the resistor body 401 is connected to the driving module 30.
  • the driving body 30 drives the resistor body 401 to rotate, and the rotation of the resistor body 401 can drive the resistor.
  • the body 402 moves in the horizontal direction, thereby causing the resistance pointer 403 to move along the surface of the first thread 4011 to change the output resistance value of the spiral track resistance 40.
  • the resistor mating body 402 can be connected to the driving module 30.
  • the driving module 30 directly drives the resistor mating body 402 to rotate and move in the horizontal direction to drive the resistor body.
  • the 401 is rotated to move the resistance pointer 403 along the surface of the first thread 4011 to change the output resistance value of the spiral track resistance 40.
  • a first thread 4011 and a second thread 4021 are provided on the resistor body 401 and the resistor mating body 402 of the spiral track resistor 40, so that the resistor partner 402 drives the resistor pointer 403 to move along the surface of the first thread 4011.
  • the output resistance value of the spiral track resistance 40 is changed, and the resistance pointer is moved in the linear direction of the resistance body in comparison with the prior art.
  • the embodiment of the present invention improves the accuracy of the output resistance value of the spiral track resistance 40, and further satisfies the precision control and The requirements for system accuracy in the field of precision measurement.
  • FIG. 5 is a schematic structural view of a second embodiment of a displacement measuring device based on a spiral resistor according to the present invention.
  • the displacement measuring device based on the spiral resistor further includes:
  • the deceleration module 50 is connected to the driving module 30 for reducing the rotation speed of the rotation of the driving module 30.
  • the deceleration module 50 can be disposed at the output end of the driving module 30, and can be a one-stage or multi-stage speed reducer; when the driving module 30 is in operation, the rotation speed of the driving module 30 is reduced by the deceleration module 50, thereby reducing the driving.
  • the torque of the module 30 increases the measurement accuracy, thereby meeting the measurement requirements of a measurement system that requires higher measurement accuracy.
  • Fig. 6 is a schematic structural view of a third embodiment of a displacement measuring device based on a spiral resistor.
  • the displacement measuring device based on the spiral resistor further includes:
  • the signal processing module 60, the output end of the spiral track resistance 40 is electrically connected to the input end of the signal processing module 60, the output end of the signal processing module 60 is electrically connected to the control module 20, and the signal processing module 60 is used for outputting the spiral track resistance 40.
  • the resistance value is used for signal conversion, signal amplification, and A/D conversion.
  • the signal processing module 60 specifically includes a resistance voltage signal conversion unit, a signal amplification unit, and an A/D conversion unit: the resistance voltage signal conversion unit is configured to convert the output resistance value of the spiral track resistance 40 into a corresponding voltage value;
  • the signal amplifying unit is used for amplifying the converted voltage value, and the amplification factor determines the accuracy of the whole system, and the amplification factor of the amplifier in the signal amplifying unit is more than 500 times, designed as multi-stage filtering and amplification, which is used in the embodiment.
  • the linear range of the amplifier is 0.7v ⁇ 3.6v; the A/D conversion unit uses a digital-to-analog converter for analog-to-digital conversion of the amplified voltage value.
  • the invention also provides a displacement measuring method based on a spiral resistor.
  • FIG. 7 is a schematic flow chart of a first embodiment of a displacement measuring method based on a spiral resistor according to the present invention.
  • the displacement measurement method based on the spiral resistor includes:
  • Step S10 the position sensing module senses a position signal of the measured object, and sends the position signal to the control module;
  • the position sensing module senses the position signal of the measured object, and firstly marks the initial position of the measured object, that is, in the initial state, the measured object is in the initial position, and in the initial position, corresponding to The output resistance value of the spiral track resistance is the initial resistance value.
  • the position sensing module records the current position of the measured object in real time, and converts the current position of the measured object into an electrical signal and sends it to the control module. .
  • Step S20 the control module controls the driving module to drive the spiral track resistance movement according to the position signal, so as to change the output resistance value of the spiral track resistance;
  • Step S30 when the spiral track resistance stops moving, the control module determines the current position value of the measured object according to the output resistance value of the spiral track resistance, and determines the measured position according to the current position value of the measured object and the initial position value of the measured object.
  • the displacement offset of the object when the spiral track resistance stops moving, the control module determines the current position value of the measured object according to the output resistance value of the spiral track resistance, and determines the measured position according to the current position value of the measured object and the initial position value of the measured object. The displacement offset of the object.
  • the control module receives the position signal sent by the position sensing module, and generates a corresponding control signal according to the position signal, and controls the driving module to drive the spiral track resistance movement, and the output resistance value of the spiral track resistance during the movement is
  • the output resistance value of the spiral track resistance has a certain correspondence with the position of the object to be measured.
  • the control module determines the current position value of the measured object according to the output resistance value of the spiral track resistance and the corresponding relationship between the output resistance value and the position of the measured object, and then according to the determined measured object The current position value and the initial position value of the measured object determine the displacement offset of the measured object.
  • the position sensing module senses the position signal of the measured object when the detected moving object moves and sends the position signal to the control module, and the control module controls the driving module to drive the spiral track resistance motion according to the position signal, and when the measured object stops moving, according to
  • the output resistance value of the spiral track resistance determines the current position value of the measured object, and finally determines the displacement offset of the measured object according to the current position value of the measured object and the initial position value of the measured object.
  • the displacement of the object to be measured is determined according to the correspondence between the output resistance value of the spiral track resistance and the position of the object to be measured, and high-precision measurement of the displacement of the object to be measured is realized.
  • FIG. 8 is a schematic flowchart of the refinement of step S20 in FIG. 7.
  • the spiral track resistance comprises a resistor body, a resistor matching body and a resistance pointer; the surface of the resistor body is provided with a first thread; the resistor matching body is sleeved on the resistor body, and the resistor matching body is provided with the first thread a second thread; the first end of the resistor pointer is fixed on the resistor mating body, and the second end of the resistor pointer is in contact with the surface of the first thread; the step S20 specifically includes:
  • Step S201 the control module controls, according to the position signal, the resistance body movement of the driving module to drive the spiral track resistance
  • Step S202 the resistance matching body moves under the driving of the resistor body, and drives the resistance pointer to move along the surface of the first thread to change the output resistance value of the spiral track resistance.
  • the resistor body is connected to the driving module, and the control module generates a control signal according to the position signal to control the operation of the driving module.
  • the driving module drives the resistor body to rotate, and the rotation of the resistor body can drive the resistor body along the body.
  • the horizontal direction moves to drive the resistance pointer to move along the surface of the first thread of the resistor body to change the output resistance value of the spiral track resistance.
  • the resistance matching body may be connected to the driving module, and the control module generates a control signal according to the position signal to control the operation of the driving module.
  • the driving module directly drives the resistance matching body to rotate and moves in the horizontal direction. In order to drive the resistance body to rotate, thereby driving the resistance pointer to move along the surface of the first thread of the resistor body to change the output resistance value of the spiral track resistance.
  • the first thread and the second thread which are matched with each other are disposed on the resistance body and the resistor matching body of the spiral track resistance, and the driving module drives the resistance partner to move the resistance pointer along the surface of the first thread, thereby changing the spiral
  • the output resistance value of the track resistance is compared with the resistance pointer in the prior art to move along the linear direction of the resistance body.
  • the embodiment of the invention improves the accuracy of the output resistance value of the spiral track resistance, and further satisfies the field of precision control and precision measurement. System accuracy requirements.
  • FIG. 9 is a schematic flowchart of the refinement of step S30 in FIG. 7.
  • step S30 specifically includes:
  • Step S301 acquiring an initial position value of the object to be measured and a corresponding initial resistance value, and determining a current position value of the measured object according to a correspondence relationship between an output resistance value of the spiral track resistance and a position value of the measured object;
  • Step S302 determining a displacement offset of the measured object according to a distance between the current position value of the measured object and the initial position value of the measured object.
  • the control module acquires the initial position value of the measured object and the initial resistance value corresponding to the spiral track resistance, due to the current spiral track resistance when the measured object stops moving.
  • the output resistance value is known. Therefore, according to the correspondence relationship between the output resistance value of the spiral track resistance and the position value of the measured object, the correspondence relationship is a linear relationship, and the current position value of the measured object can be determined; and then, according to the measured The displacement between the current position value of the object and the initial position value of the measured object determines the displacement offset of the measured object.
  • FIG. 10 is a schematic flow chart of a second embodiment of a displacement measuring method based on a spiral resistor according to the present invention.
  • the displacement measuring method based on the spiral resistor further includes:
  • step S40 the signal processing module performs signal conversion, signal amplification, and A/D conversion on the output resistance value of the spiral track resistance.
  • the signal processing module specifically includes a resistance voltage signal conversion unit, a signal amplification unit, and an A/D conversion unit. After the spiral track resistance outputs its output resistance value, the signal processing module converts the output resistance value into a corresponding voltage value through its resistance voltage signal conversion unit, and then amplifies the converted voltage value through the signal amplification unit, and the amplification factor is determined.
  • the accuracy of the whole system, the amplification factor of the amplifier in the signal amplification unit is more than 500 times, designed for multi-stage filtering and amplification.
  • the linear range of the amplifier used in this embodiment is 0.7v ⁇ 3.6v; the amplified voltage value is A.
  • the /D conversion unit performs analog-to-digital conversion, and the A/D conversion unit adopts a digital-to-analog converter.
  • a 24-bit digital-to-analog converter is selected, and the digital signal corresponding to the converted output resistance value can be further determined by the control module. The current position value of the object.

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Abstract

一种基于螺旋电阻器的位移测量装置，包括：位置感应模块（10），与控制模块（20）连接，用于感应被测对象的位置信号，并将位置信号发送至控制模块（20）；控制模块（20），与驱动模块（30）连接，用于根据位置信号控制驱动模块（30）带动螺旋轨道电阻（40）运动；以及，根据螺旋轨道电阻（40）的输出电阻值确定被测对象的当前位置值，并根据被测对象的当前位置值以及被测对象的初始位置值确定被测对象的位移偏移量；螺旋轨道电阻（40），与驱动模块（30）连接，在驱动模块（30）的驱动下运动改变输出电阻值，以确定被测对象的当前位置值。还公开了相应的测量方法。根据螺旋轨道电阻（40）的输出电阻值与被测对象的位置的对应关系确定被测对象的位移，实现了对被测对象的位移的高精度测量。

Description

基于螺旋电阻器的位移测量装置和方法
技术领域
本发明涉及生命健康技术领域，尤其涉及一种基于螺旋电阻器的位移测量装置和方法。
背景技术
目前，可变电阻器应用已经非常广泛，例如可以改变信号发生器的特性、使灯光变暗、启动电动机或控制它的转速等，其通常包括电阻体、活动触片和三个引脚。其中两个固定引脚接电阻体两端，另一个引脚（中心抽头）接活动触片，活动触片沿电阻体直线运动，以改变电阻体两端的电阻。在精密控制和精密测量领域，现有的可变电阻器很难满足其精度的需求；而对于被测对象位移的测量，通常所采用的方法也只是直观的测距方法，并不能实现高精度的位移测量。
发明内容
本发明的主要目的在于提供一种基于螺旋电阻器的位移测量装置，实现对被测对象的位移的高精度测量。
为实现上述目的，本发明提供了一种基于螺旋电阻器的位移测量装置，所述基于螺旋电阻器的位移测量装置包括位置感应模块、控制模块、驱动模块和螺旋轨道电阻：
所述位置感应模块，与所述控制模块连接，用于感应被测对象的位置信号，并将所述位置信号发送至所述控制模块；
所述控制模块，与所述驱动模块连接，用于根据所述位置信号控制所述驱动模块带动所述螺旋轨道电阻运动；以及，根据螺旋轨道电阻的输出电阻值确定被测对象的当前位置值，并根据所述被测对象的当前位置值以及被测对象的初始位置值确定所述被测对象的位移偏移量；
所述螺旋轨道电阻，与所述驱动模块连接，在所述驱动模块的驱动下运动改变输出电阻值，以确定被测对象的当前位置值。
优选地，所述基于螺旋电阻器的位移测量装置还包括与所述驱动模块连接的减速模块，所述减速模块用于减小所述驱动模块转动的转速。
优选地，所述基于螺旋电阻器的位移测量装置还包括信号处理模块，所述螺旋轨道电阻的输出端与所述信号处理模块的输入端电连接，所述信号处理模块的输出端与所述控制模块电连接，所述信号处理模块用于对所述输出电阻值进行信号转换、信号放大和A/D转换。
优选地，所述控制模块具体用于：
获取所述被测对象的初始位置值及对应的初始电阻值，根据螺旋轨道电阻的输出电阻值与被测对象的位置值的对应关系，确定所述被测对象的当前位置值；
根据所述被测对象的当前位置值以及被测对象的初始位置值之间的距离，确定所述被测对象的位移偏移量。
优选地，所述基于螺旋电阻器的位移测量装置还包括与所述驱动模块连接的减速模块，所述减速模块用于减小所述驱动模块转动的转速。
优选地，所述基于螺旋电阻器的位移测量装置还包括信号处理模块，所述螺旋轨道电阻的输出端与所述信号处理模块的输入端电连接，所述信号处理模块的输出端与所述控制模块电连接，所述信号处理模块用于对所述输出电阻值进行信号转换、信号放大和A/D转换。
优选地，所述螺旋轨道电阻包括电阻本体、电阻配合体和电阻指针：
所述电阻本体表面设置有第一螺纹；所述电阻配合体套设在所述电阻本体上，所述电阻配合体设置有与所述第一螺纹适配的第二螺纹；所述电阻指针的第一端固定于所述电阻配合体上，所述电阻指针的第二端与所述第一螺纹的表面接触；
所述电阻本体与所述驱动模块连接，在所述驱动模块的驱动下带动所述电阻配合体运动，所述电阻配合体带动所述电阻指针沿所述第一螺纹的表面移动，以改变所述螺旋轨道电阻的输出电阻值。
优选地，所述基于螺旋电阻器的位移测量装置还包括与所述驱动模块连接的减速模块，所述减速模块用于减小所述驱动模块转动的转速。
优选地，所述基于螺旋电阻器的位移测量装置还包括信号处理模块，所述螺旋轨道电阻的输出端与所述信号处理模块的输入端电连接，所述信号处理模块的输出端与所述控制模块电连接，所述信号处理模块用于对所述输出电阻值进行信号转换、信号放大和A/D转换。
此外，为实现上述目的，本发明还提供一种使用基于螺旋电阻器的位移测量装置的位移测量方法，所述位移测量方法包括如下步骤：
位置感应模块感应被测对象的位置信号，并将所述位置信号发送至控制模块；
控制模块根据所述位置信号控制驱动模块带动螺旋轨道电阻运动，以改变所述螺旋轨道电阻的输出电阻值；
当所述螺旋轨道电阻停止运动时，控制模块根据螺旋轨道电阻的输出电阻值确定被测对象的当前位置值，并根据所述被测对象的当前位置值以及被测对象的初始位置值确定所述被测对象的位移偏移量。
优选地，所述基于螺旋电阻器的位移测量方法还包括如下步骤：
信号处理模块对螺旋轨道电阻的输出电阻值进行信号转换、信号放大和A/D转换。
优选地，所述控制模块根据螺旋轨道电阻的输出电阻值确定被测对象的当前位置值，并根据所述被测对象的当前位置值以及被测对象的初始位置值确定所述被测对象的位移偏移量的步骤包括：
获取所述被测对象的初始位置值及对应的初始电阻值，根据螺旋轨道电阻的输出电阻值与被测对象的位置值的对应关系，确定所述被测对象的当前位置值；
根据所述被测对象的当前位置值以及被测对象的初始位置值之间的距离，确定所述被测对象的位移偏移量。
优选地，所述基于螺旋电阻器的位移测量方法还包括如下步骤：
信号处理模块对螺旋轨道电阻的输出电阻值进行信号转换、信号放大和A/D转换。
优选地，所述螺旋轨道电阻包括电阻本体、电阻配合体和电阻指针；所述电阻本体表面设置有第一螺纹；所述电阻配合体套设在所述电阻本体上，所述电阻配合体设置有与所述第一螺纹适配的第二螺纹；所述电阻指针的第一端固定于所述电阻配合体上，所述电阻指针的第二端与所述第一螺纹的表面接触；
所述控制模块根据所述位置信号控制驱动模块带动螺旋轨道电阻运动，以改变所述螺旋轨道电阻的输出电阻值的步骤包括：
控制模块根据所述位置信号控制驱动模块带动所述螺旋轨道电阻的电阻本体运动；
所述电阻配合体在所述电阻本体的带动下运动，带动所述电阻指针沿所述第一螺纹的表面移动，以改变所述螺旋轨道电阻的输出电阻值。
优选地，所述基于螺旋电阻器的位移测量方法还包括如下步骤：
信号处理模块对螺旋轨道电阻的输出电阻值进行信号转换、信号放大和A/D转换。
本发明采用上述技术方案，通过位置感应模块在被测动象移动时感应被测对象的位置信号并发送至控制模块，控制模块根据位置信号控制驱动模块带动螺旋轨道电阻运动，并在被测对象停止移动时根据螺旋轨道电阻的输出电阻值确定被测对象的当前位置值，最终根据被测对象的当前位置值以及被测对象的初始位置值确定被测对象的位移偏移量。根据螺旋轨道电阻的输出电阻值与被测对象的位置的对应关系确定被测对象的位移，实现了对被测对象的位移的高精度测量。
附图说明
图1为本发明基于螺旋电阻器的位移测量装置第一实施例的结构示意图；
图2为图1中螺旋轨道电阻的结构示意图；
图3为图2为中螺旋轨道电阻的电阻本体和电阻配合体配合的优选实施方式的结构示意图；
图4为本发明基于螺旋电阻器的位移测量装置第一实施例的优选实施方式的结构示意图；
图5为本发明基于螺旋电阻器的位移测量装置第二实施例的结构示意图；
图6为基于螺旋电阻器的位移测量装置第三实施例的结构示意图；
图7为本发明基于螺旋电阻器的位移测量方法第一实施例的流程示意图；
图8为图7中步骤S20的细化流程示意图；
图9为图7中步骤S30的细化流程示意图；
图10为本发明基于螺旋电阻器的位移测量方法第二实施例的流程示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明提供一种基于螺旋电阻器的位移测量装置，通过螺旋轨道电阻的输出电阻值确定被测对象的位移偏移量，以实现对被测对象的位移的高精度测量。
参照图1，图1为本发明基于螺旋电阻器的位移测量装置第一实施例的结构示意图。
在一实施例中，如图1所示，基于螺旋电阻器的位移测量装置包括：位置感应模块10、控制模块20、驱动模块30和螺旋轨道电阻40：
位置感应模块10，与控制模块20连接，用于感应被测对象的位置信号，并将位置信号发送至控制模块20；
控制模块20，与驱动模块30连接，用于根据位置信号控制驱动模块30带动螺旋轨道电阻40运动；以及，根据螺旋轨道电阻40的输出电阻值确定被测对象的当前位置值，并根据被测对象的当前位置值以及被测对象的初始位置值确定被测对象的位移偏移量；
螺旋轨道电阻40，与驱动模块30连接，在驱动模块30的驱动下运动改变输出电阻值，以确定被测对象的当前位置值。
位置感应模块10用于感应被测对象所处的当前位置，并将感应到的位置信号转化为电信号发送至控制模块20，被测对象的位置可用相应的坐标或能够标记位置的记号来表示，该位置感应模块10既可为固定的感应装置，当被测对象在一定的范围内移动时，通过位置感应模块10实时记录被测对象的当前位置；位置感应模块10也可为活动设置，即与被测对象同时移动，并实时记录被测对象的当前位置。
驱动模块30用于驱动螺旋轨道电阻40运动，该驱动模块30可选择为电机，本实施例中优选为步进电机，该步进电机的步长越小，测量精度越高。在设计时应综合考虑系统测量精度的要求。在本实施例中，可选择步进电机的步长为0.5°或0.75°，以保证对被测对象的微小位移的精密测量。
本实施例中，对被测对象的初始位置进行预先标记，即在初始状态下被测对象处于该初始位置，在该初始位置时，对应于螺旋轨道电阻40的输出电阻值为初始电阻值，随着被测对象的移动，位置感应模块10实时记录被测对象的当前位置，并将被测对象所处的当前位置转化为电信号发送至控制模块20；在被测对象移动的过程中，控制模块20根据位置信号生成相应的控制信号，控制驱动模块30带动螺旋轨道电阻40运动，螺旋轨道电阻40在运动时其输出电阻值会发生变化，螺旋轨道电阻40的输出电阻值与被测对象的位置具有一定的对应关系；当被测对象停止移动时，控制模块20根据螺旋轨道电阻40的输出电阻值，以及输出电阻值与被测对象的位置的对应关系，确定被测对象的当前位置值，然后根据确定的被测对象的当前位置值以及被测对象的初始位置值即可确定被测对象的位移偏移量。
具体地，控制模块20获取被测对象的初始位置值，以及此时螺旋轨道电阻40对应的初始电阻值；由于在被测对象停止移动时螺旋轨道电阻40的当前的输出电阻值为已知，因而根据螺旋轨道电阻40的输出电阻值与被测对象的位置值的对应关系，该对应关系为一线性关系，可确定被测对象的当前位置值；然后，根据被测对象的当前位置值以及被测对象的初始位置值之间的距离，即可确定出被测对象的位移偏移量。
本实施例通过位置感应模块10在被测动象移动时感应被测对象的位置信号并发送至控制模块20，控制模块20根据位置信号控制驱动模块30带动螺旋轨道电阻40运动，并在被测对象停止移动时根据螺旋轨道电阻40的输出电阻值确定被测对象的当前位置值，最终根据被测对象的当前位置值以及被测对象的初始位置值确定被测对象的位移偏移量。根据螺旋轨道电阻40的输出电阻值与被测对象的位置的对应关系确定被测对象的位移，实现了对被测对象的位移的高精度测量。
参照图2和图3，图2为图1中螺旋轨道电阻的结构示意图；图3为图2为中螺旋轨道电阻的电阻本体和电阻配合体配合的优选实施方式的结构示意图。
在上述实施例中，螺旋轨道电阻40包括电阻本体401、电阻配合体402和电阻指针403，其中：
电阻本体401表面设置有第一螺纹4011；电阻配合体402套设在电阻本体401上，电阻配合体402设置有与第一螺纹4011适配的第二螺纹4021；电阻指针403的第一端4031固定于电阻配合体402上，电阻指针403的第二端4032与第一螺纹4011的表面接触。
电阻本体401和电阻配合体402相互配合，电阻配合体402套设在电阻本体401上，电阻本体401设置为螺杆结构，电阻本体401表面设置有第一螺纹4011，电阻配合体402设置为螺帽结构，电阻配合体402的内表面设置有与第一螺纹4011适配的第二螺纹4021，第一螺纹4011与第二螺纹4021啮合；电阻指针403的第一端4031与电阻本体401的第一螺纹4011的表面接触，电阻指针403的第二端4032固定于电阻配合体402上，具体可设置在第二螺纹4021上。
进一步参照图4，图4为本发明基于螺旋电阻器的位移测量装置第一实施例的优选实施方式的结构示意图。
如图4所示，在本发明一优选实施例中，电阻本体401与驱动模块30连接，螺旋轨道电阻40工作时，通过驱动模块30驱动电阻本体401转动，电阻本体401的转动可带动电阻配合体402沿水平方向移动，从而带动电阻指针403沿第一螺纹4011的表面移动，以改变螺旋轨道电阻40的输出电阻值。在本发明的其他实施例中，还可将电阻配合体402与驱动模块30连接，螺旋轨道电阻40工作时，通过驱动模块30直接驱动电阻配合体402转动并沿水平方向移动，以带动电阻本体401转动，从而带动电阻指针403沿第一螺纹4011的表面移动，以改变螺旋轨道电阻40的输出电阻值。
在螺旋轨道电阻40的电阻本体401和电阻配合体402上设置相互配合的第一螺纹4011和第二螺纹4021，使电阻配合体402带动电阻指针403在电阻沿第一螺纹4011的表面移动，从而改变螺旋轨道电阻40的输出电阻值，对比于现有技术中的电阻指针沿电阻本体直线方向移动，本发明实施例提高了螺旋轨道电阻40的输出电阻值的精度，进一步满足了在精密控制和精密测量领域对系统精度的要求。
参照图5，图5为本发明基于螺旋电阻器的位移测量装置第二实施例的结构示意图。
基于本发明上述实施例，在第二实施例中，基于螺旋电阻器的位移测量装置还包括：
减速模块50，该减速模块50与驱动模块30连接，用于减小驱动模块30转动的转速。
本实施例中，减速模块50可设置在驱动模块30的输出端，可为一级或多级减速器；在驱动模块30工作时，通过减速模块50降低驱动模块30的转速，从而减小驱动模块30的转矩，使得测量精度提高，从而满足对测量精度要求更高的测量系统的测量需求。
参照图6，图6为基于螺旋电阻器的位移测量装置第三实施例的结构示意图。
基于本发明第一实施例，在第三实施例中，基于螺旋电阻器的位移测量装置还包括：
信号处理模块60，螺旋轨道电阻40的输出端与信号处理模块60的输入端电连接，信号处理模块60的输出端与控制模块20电连接，信号处理模块60用于对螺旋轨道电阻40的输出电阻值进行信号转换、信号放大和A/D转换。
本实施例中，信号处理模块60具体包括电阻电压信号转换单元、信号放大单元以及A/D转换单元：电阻电压信号转换单元用于将螺旋轨道电阻40的输出电阻值转换为对应的电压值；信号放大单元用于对转换后的电压值进行放大，放大倍数决定了整个系统的精度，信号放大单元中放大器的放大倍数要500倍以上，设计为多级滤波及放大，本实施例中采用的放大器线性区间为0.7v~3.6v；A/D转换单元采用数模转换器，用于对放大后的电压值进行模数转化，其中数模转换器的位数越高，测量精度越高，本实施例选用24位的数模转换器。具体的电路连接关系，本领域技术人员通过对本部分的描述，再结合所掌握的电路知识即可得出，在此不赘述。
本发明还提供一种基于螺旋电阻器的位移测量方法。
参照图7，图7为本发明基于螺旋电阻器的位移测量方法第一实施例的流程示意图。
在一实施例中，基于螺旋电阻器的位移测量方法包括：
步骤S10，位置感应模块感应被测对象的位置信号，并将位置信号发送至控制模块；
本实施例中，通过位置感应模块感应被测对象的位置信号，首先对被测对象的初始位置进行预先标记，即在初始状态下被测对象处于该初始位置，在该初始位置时，对应于螺旋轨道电阻的输出电阻值为初始电阻值，随着被测对象的移动，位置感应模块实时记录被测对象的当前位置，并将被测对象所处的当前位置转化为电信号发送至控制模块。
步骤S20，控制模块根据位置信号控制驱动模块带动螺旋轨道电阻运动，以改变螺旋轨道电阻的输出电阻值；
步骤S30，当螺旋轨道电阻停止运动时，控制模块根据螺旋轨道电阻的输出电阻值确定被测对象的当前位置值，并根据被测对象的当前位置值以及被测对象的初始位置值确定被测对象的位移偏移量。
在被测对象移动的过程中，控制模块接收位置感应模块发送的位置信号，并根据位置信号生成相应的控制信号，控制驱动模块带动螺旋轨道电阻运动，螺旋轨道电阻在运动时其输出电阻值会发生变化，螺旋轨道电阻的输出电阻值与被测对象的位置具有一定的对应关系。当被测对象停止移动时，控制模块根据螺旋轨道电阻的输出电阻值，以及输出电阻值与被测对象的位置的对应关系，确定被测对象的当前位置值，然后根据确定的被测对象的当前位置值以及被测对象的初始位置值即可确定被测对象的位移偏移量。
本实施例通过位置感应模块在被测动象移动时感应被测对象的位置信号并发送至控制模块，控制模块根据位置信号控制驱动模块带动螺旋轨道电阻运动，并在被测对象停止移动时根据螺旋轨道电阻的输出电阻值确定被测对象的当前位置值，最终根据被测对象的当前位置值以及被测对象的初始位置值确定被测对象的位移偏移量。根据螺旋轨道电阻的输出电阻值与被测对象的位置的对应关系确定被测对象的位移，实现了对被测对象的位移的高精度测量。
参照图8，图8为图7中步骤S20的细化流程示意图。
在上述实施例中，螺旋轨道电阻包括电阻本体、电阻配合体和电阻指针；电阻本体表面设置有第一螺纹；电阻配合体套设在电阻本体上，电阻配合体设置有与第一螺纹适配的第二螺纹；电阻指针的第一端固定于电阻配合体上，电阻指针的第二端与第一螺纹的表面接触；步骤S20具体包括：
步骤S201，控制模块根据位置信号控制驱动模块带动螺旋轨道电阻的电阻本体运动；
步骤S202，电阻配合体在电阻本体的带动下运动，带动电阻指针沿第一螺纹的表面移动，以改变螺旋轨道电阻的输出电阻值。
在本发明一优选实施例中，电阻本体与驱动模块连接，控制模块根据位置信号生成控制信号，控制驱动模块工作，此时，驱动模块驱动电阻本体转动，电阻本体的转动可带动电阻配合体沿水平方向移动，从而带动电阻指针沿电阻本体的第一螺纹的表面移动，以改变螺旋轨道电阻的输出电阻值。在本发明的其他实施例中，还可将电阻配合体与驱动模块连接，控制模块根据位置信号生成控制信号，控制驱动模块工作，此时，驱动模块直接驱动电阻配合体转动并沿水平方向移动，以带动电阻本体转动，从而带动电阻指针沿电阻本体的第一螺纹的表面移动，以改变螺旋轨道电阻的输出电阻值。
在螺旋轨道电阻的电阻本体和电阻配合体上设置相互配合的第一螺纹和第二螺纹，通过驱动模块的带动，使电阻配合体带动电阻指针在电阻沿第一螺纹的表面移动，从而改变螺旋轨道电阻的输出电阻值，对比于现有技术中的电阻指针沿电阻本体直线方向移动，本发明实施例提高了螺旋轨道电阻的输出电阻值的精度，进一步满足了在精密控制和精密测量领域对系统精度的要求。
参照图9，图9为图7中步骤S30的细化流程示意图。
在上述实施例中，步骤S30具体包括：
步骤S301，获取被测对象的初始位置值及对应的初始电阻值，根据螺旋轨道电阻的输出电阻值与被测对象的位置值的对应关系，确定被测对象的当前位置值；
步骤S302，根据被测对象的当前位置值以及被测对象的初始位置值之间的距离，确定被测对象的位移偏移量。
在被测对象停止移动并确定被测对象的位移时，控制模块获取被测对象的初始位置值，以及螺旋轨道电阻对应的初始电阻值，由于在被测对象停止移动时螺旋轨道电阻的当前的输出电阻值为已知，因而根据螺旋轨道电阻的输出电阻值与被测对象的位置值的对应关系，该对应关系为一线性关系，可确定被测对象的当前位置值；然后，根据被测对象的当前位置值以及被测对象的初始位置值之间的距离，即可确定出被测对象的位移偏移量。
参照图10，图10为本发明基于螺旋电阻器的位移测量方法第二实施例的流程示意图。
基于上述本发明第一实施例，在第二实施例中，在执行步骤S30之前，基于螺旋电阻器的位移测量方法还包括：
步骤S40，信号处理模块对螺旋轨道电阻的输出电阻值进行信号转换、信号放大和A/D转换。
本实施例中，信号处理模块具体包括电阻电压信号转换单元、信号放大单元以及A/D转换单元。在螺旋轨道电阻将其输出电阻值输出后，信号处理模块通过其电阻电压信号转换单元将输出电阻值转换为对应的电压值，然后通过信号放大单元对转换后的电压值进行放大，放大倍数决定了整个系统的精度，信号放大单元中放大器的放大倍数要500倍以上，设计为多级滤波及放大，本实施例中采用的放大器线性区间为0.7v~3.6v；放大后的电压值经A/D转换单元进行模数转化，A/D转换单元采用数模转换器，本实施例选用24位的数模转换器，转换后的输出电阻值所对应的数字信号可供控制模块进一步确定被测对象的当前位置值。
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (15)

  1. 一种基于螺旋电阻器的位移测量装置，其特征在于，所述基于螺旋电阻器的位移测量装置包括位置感应模块、控制模块、驱动模块和螺旋轨道电阻：
    所述位置感应模块，与所述控制模块连接，用于感应被测对象的位置信号，并将所述位置信号发送至所述控制模块；
    所述控制模块，与所述驱动模块连接，用于根据所述位置信号控制所述驱动模块带动所述螺旋轨道电阻运动；以及，根据螺旋轨道电阻的输出电阻值确定被测对象的当前位置值，并根据所述被测对象的当前位置值以及被测对象的初始位置值确定所述被测对象的位移偏移量；
    所述螺旋轨道电阻，与所述驱动模块连接，在所述驱动模块的驱动下运动改变输出电阻值，以确定被测对象的当前位置值。
  2. 如权利要求1所述的基于螺旋电阻器的位移测量装置，其特征在于，所述基于螺旋电阻器的位移测量装置还包括与所述驱动模块连接的减速模块，所述减速模块用于减小所述驱动模块转动的转速。
  3. 如权利要求1所述的基于螺旋电阻器的位移测量装置，其特征在于，所述基于螺旋电阻器的位移测量装置还包括信号处理模块，所述螺旋轨道电阻的输出端与所述信号处理模块的输入端电连接，所述信号处理模块的输出端与所述控制模块电连接，所述信号处理模块用于对所述输出电阻值进行信号转换、信号放大和A/D转换。
  4. 如权利要求1所述的基于螺旋电阻器的位移测量装置，其特征在于，所述控制模块具体用于：
    获取所述被测对象的初始位置值及对应的初始电阻值，根据螺旋轨道电阻的输出电阻值与被测对象的位置值的对应关系，确定所述被测对象的当前位置值；
    根据所述被测对象的当前位置值以及被测对象的初始位置值之间的距离，确定所述被测对象的位移偏移量。
  5. 如权利要求4所述的基于螺旋电阻器的位移测量装置，其特征在于，所述基于螺旋电阻器的位移测量装置还包括与所述驱动模块连接的减速模块，所述减速模块用于减小所述驱动模块转动的转速。
  6. 如权利要求4所述的基于螺旋电阻器的位移测量装置，其特征在于，所述基于螺旋电阻器的位移测量装置还包括信号处理模块，所述螺旋轨道电阻的输出端与所述信号处理模块的输入端电连接，所述信号处理模块的输出端与所述控制模块电连接，所述信号处理模块用于对所述输出电阻值进行信号转换、信号放大和A/D转换。
  7. 如权利要求1所述的基于螺旋电阻器的位移测量装置，其特征在于，所述螺旋轨道电阻包括电阻本体、电阻配合体和电阻指针：
    所述电阻本体表面设置有第一螺纹；所述电阻配合体套设在所述电阻本体上，所述电阻配合体设置有与所述第一螺纹适配的第二螺纹；所述电阻指针的第一端固定于所述电阻配合体上，所述电阻指针的第二端与所述第一螺纹的表面接触；
    所述电阻本体与所述驱动模块连接，在所述驱动模块的驱动下带动所述电阻配合体运动，所述电阻配合体带动所述电阻指针沿所述第一螺纹的表面移动，以改变所述螺旋轨道电阻的输出电阻值。
  8. 如权利要求7所述的基于螺旋电阻器的位移测量装置，其特征在于，所述基于螺旋电阻器的位移测量装置还包括与所述驱动模块连接的减速模块，所述减速模块用于减小所述驱动模块转动的转速。
  9. 如权利要求7所述的基于螺旋电阻器的位移测量装置，其特征在于，所述基于螺旋电阻器的位移测量装置还包括信号处理模块，所述螺旋轨道电阻的输出端与所述信号处理模块的输入端电连接，所述信号处理模块的输出端与所述控制模块电连接，所述信号处理模块用于对所述输出电阻值进行信号转换、信号放大和A/D转换。
  10. 一种使用如权利要求1所述的基于螺旋电阻器的位移测量装置的位移测量方法，其特征在于，所述位移测量方法包括如下步骤：
    位置感应模块感应被测对象的位置信号，并将所述位置信号发送至控制模块；
    控制模块根据所述位置信号控制驱动模块带动螺旋轨道电阻运动，以改变所述螺旋轨道电阻的输出电阻值；
    当所述螺旋轨道电阻停止运动时，控制模块根据螺旋轨道电阻的输出电阻值确定被测对象的当前位置值，并根据所述被测对象的当前位置值以及被测对象的初始位置值确定所述被测对象的位移偏移量。
  11. 如权利要求10所述的基于螺旋电阻器的位移测量方法，其特征在于，所述基于螺旋电阻器的位移测量方法还包括如下步骤：
    信号处理模块对螺旋轨道电阻的输出电阻值进行信号转换、信号放大和A/D转换。
  12. 如权利要求10所述的基于螺旋电阻器的位移测量方法，其特征在于，所述控制模块根据螺旋轨道电阻的输出电阻值确定被测对象的当前位置值，并根据所述被测对象的当前位置值以及被测对象的初始位置值确定所述被测对象的位移偏移量的步骤包括：
    获取所述被测对象的初始位置值及对应的初始电阻值，根据螺旋轨道电阻的输出电阻值与被测对象的位置值的对应关系，确定所述被测对象的当前位置值；
    根据所述被测对象的当前位置值以及被测对象的初始位置值之间的距离，确定所述被测对象的位移偏移量。
  13. 如权利要求12所述的基于螺旋电阻器的位移测量方法，其特征在于，所述基于螺旋电阻器的位移测量方法还包括如下步骤：
    信号处理模块对螺旋轨道电阻的输出电阻值进行信号转换、信号放大和A/D转换。
  14. 如权利要求10所述的基于螺旋电阻器的位移测量方法，其特征在于，所述螺旋轨道电阻包括电阻本体、电阻配合体和电阻指针；所述电阻本体表面设置有第一螺纹；所述电阻配合体套设在所述电阻本体上，所述电阻配合体设置有与所述第一螺纹适配的第二螺纹；所述电阻指针的第一端固定于所述电阻配合体上，所述电阻指针的第二端与所述第一螺纹的表面接触；
    所述控制模块根据所述位置信号控制驱动模块带动螺旋轨道电阻运动，以改变所述螺旋轨道电阻的输出电阻值的步骤包括：
    控制模块根据所述位置信号控制驱动模块带动所述螺旋轨道电阻的电阻本体运动；
    所述电阻配合体在所述电阻本体的带动下运动，带动所述电阻指针沿所述第一螺纹的表面移动，以改变所述螺旋轨道电阻的输出电阻值。
  15. 如权利要求14所述的基于螺旋电阻器的位移测量方法，其特征在于，所述基于螺旋电阻器的位移测量方法还包括如下步骤：
    信号处理模块对螺旋轨道电阻的输出电阻值进行信号转换、信号放大和A/D转换。
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CN107869950A (zh) * 2017-12-20 2018-04-03 南阳淅减汽车减振器有限公司 一种减振器活塞杆长度自动检测装置
CN107869950B (zh) * 2017-12-20 2023-11-21 南阳淅减汽车减振器有限公司 一种减振器活塞杆长度自动检测装置

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