WO2016123838A1 - 获取特征光谱位置的系统和方法 - Google Patents

获取特征光谱位置的系统和方法 Download PDF

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Publication number
WO2016123838A1
WO2016123838A1 PCT/CN2015/073839 CN2015073839W WO2016123838A1 WO 2016123838 A1 WO2016123838 A1 WO 2016123838A1 CN 2015073839 W CN2015073839 W CN 2015073839W WO 2016123838 A1 WO2016123838 A1 WO 2016123838A1
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WIPO (PCT)
Prior art keywords
characteristic
module
spectral
acquiring
signal
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/073839
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English (en)
French (fr)
Inventor
张贯京
陈兴明
葛新科
张少鹏
方静芳
高伟明
梁艳妮
周荣
梁昊原
周亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Qianhai AnyCheck Information Technology Co Ltd
E Techno Information Technologies Co Ltd
Bio Tech Academy China Co Ltd
Original Assignee
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 WO2016123838A1 publication Critical patent/WO2016123838A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/55—Specular reflectivity
    • G01N21/552—Attenuated total reflection

Definitions

  • the present invention relates to the field of biomedical technology, and more particularly to a system and method for acquiring a characteristic spectral position.
  • SPR Surface Plasmon Resonance Technology
  • the main object of the present invention is to provide a system and method for accurately acquiring the spectral position of a feature, and to solve the defect that the spectral position of the feature cannot be accurately obtained in the prior art.
  • the present invention provides a system for acquiring a characteristic spectral position, the system for acquiring a characteristic spectral position comprising a spectral receiving module, a control module, a motor module, and a spiral track resistance:
  • the spectral receiving module is electrically connected to the control module and mechanically coupled to the motor module for receiving a characteristic spectral signal and transmitting the characteristic spectral signal to the control module;
  • the control module is electrically connected to the motor module, and is configured to control, according to the characteristic spectrum signal generation control signal, the motor module to drive the spiral track resistance and the spectrum receiving module to move, and according to the spiral track resistance a change in the output resistance value to calculate a position value corresponding to the characteristic spectrum;
  • the spiral track resistance is electrically coupled to the control module and mechanically coupled to the motor module to be driven by the motor module to vary an output resistance value of the spiral track resistance.
  • the system for acquiring a characteristic spectral position further includes a concentrating module, and the concentrating module is disposed at a front end of the spectral receiving module for collecting the characteristic spectral signal.
  • 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 provided with a second thread that meshes with the first thread; a first end of the resistor pointer is in contact with a surface of the resistor body, and the resistor pointer The second end is fixed to the resistor mating body.
  • the resistance body of the spiral track resistance is mechanically connected to the motor module, the motor module drives the resistance body to move; the resistance body drives the resistance matching body to drive the resistance pointer on the resistance body The surface moves along the first thread to change an output resistance value of the spiral track resistance.
  • the spectral receiving module is disposed on the resistance matching body, the resistance body of the spiral track resistance is mechanically connected to the motor module, and the motor module drives the resistance body to move, the resistance body driving station
  • the resistor complex body drives the spectrum receiving module to move.
  • the present invention also provides a method for acquiring a characteristic spectral position of a system for acquiring a characteristic spectral position, the method for obtaining a characteristic spectral position comprising the following steps:
  • the spectral receiving module receives the characteristic spectral signal and transmits the characteristic spectral signal to the control module;
  • the control module generates a control signal according to the size of the characteristic spectral signal, and controls the motor module to drive the spiral track resistance and the spectrum receiving module to move;
  • the control module obtains an output resistance value of the spiral track resistance, and obtains a position of the characteristic spectrum according to the output resistance value.
  • the method for acquiring a spectral position of a feature further comprises the following steps:
  • the step of the spectral receiving module acquiring the characteristic spectral signal further comprises the following steps:
  • the concentrating module aggregates the characteristic spectral signals.
  • the method for acquiring a spectral position of a feature further comprises the following steps:
  • control module generates a control signal according to the size of the characteristic spectral signal
  • step of controlling the motor module to drive the spiral track resistance and the spectrum receiving module to move comprises:
  • the control module generates a control signal according to the size of the characteristic spectral signal, and controls the motor module according to the control signal, wherein the motor module drives a resistance of the spiral track resistor to move; the resistor body drives the resistor a pointer moves along the first thread on the surface of the resistor body;
  • the control module generates a control signal according to the size of the characteristic spectral signal, and controls the motor to drive the spectrum receiving module to move.
  • the method for acquiring a spectral position of a feature further comprises the following steps:
  • the method for acquiring a spectral position of a feature further comprises the following steps:
  • the signal conversion module performs signal conversion, signal amplification, and A/D conversion on the output resistance value of the spiral track resistance.
  • the method for acquiring a spectral position of a feature further comprises the following steps:
  • the invention adopts the above technical solution, and brings the technical effect: receiving a characteristic spectrum signal through a spectrum receiving module, and transmitting the characteristic spectrum signal to the control module; the control module generates a control signal control station according to the characteristic spectrum signal
  • the motor module drives the spiral track resistance and the spectrum receiving module to move, and the spiral track resistance is driven by the motor module to change an output resistance value of the spiral track resistance, and the spectrum receiving module is in the motor module
  • the characteristic spectrum control module is dynamically received to change the control signal
  • the control module calculates the position value corresponding to the characteristic spectrum according to the change of the output resistance value of the spiral track resistance, thereby accurately acquiring the characteristic spectral position.
  • FIG. 1 is a schematic structural view of a first preferred embodiment of a system for acquiring a characteristic spectral position according to the present invention
  • FIG. 2 is a schematic structural view of a second preferred embodiment of a system for acquiring a characteristic spectral position according to the present invention
  • FIG. 3 is a schematic structural view of a first preferred embodiment of a spiral track resistance of the present invention.
  • FIG. 4 is a schematic structural view of a first embodiment of a spiral track resistance first thread and a second thread engagement of the present invention
  • FIG. 5 is a schematic structural view of a third preferred embodiment of a system for acquiring a characteristic spectral position according to the present invention.
  • FIG. 6 is a schematic flow chart of a first preferred embodiment of a method for acquiring a characteristic spectral position according to the present invention
  • FIG. 7 is a schematic flow chart of a second preferred embodiment of a method for obtaining a characteristic spectral position according to the present invention.
  • FIG. 8 is a schematic diagram showing the refinement process of step S20 shown in FIG. 6;
  • FIG. 10 is a schematic flow chart of a fourth preferred embodiment of a method for acquiring a characteristic spectral position according to the present invention.
  • the main object of the present invention is to provide a system and method for accurately acquiring the spectral position of a feature, and to solve the defect that the spectral position of the feature cannot be accurately obtained in the prior art.
  • the present invention provides a system for acquiring a characteristic spectral position.
  • FIG. 1 is a schematic structural view of a first preferred embodiment of a system for acquiring a characteristic spectral position according to the present invention
  • the system for acquiring the characteristic spectral position includes a spectrum receiving module 10, a control module 20, a motor module 30, and a spiral track resistance 40:
  • the spectral receiving module 10 is electrically connected to the control module 20, and is mechanically coupled to the motor module 30 for receiving a characteristic spectral signal, and transmitting the characteristic spectral signal to the control module 20;
  • the control module 20 is electrically connected to the motor module 30, and is configured to control the motor module 30 to drive the spiral track resistance 40 and the spectrum receiving module 10 according to the characteristic spectral signal generation control signal, and according to a change in an output resistance value of the spiral track resistance 40 calculates a position value corresponding to the characteristic spectrum;
  • the spiral track resistance 40 is electrically connected to the control module 20, and mechanically coupled to the motor module 30, and is driven by the motor module 30 to change an output resistance value of the spiral track resistance 40.
  • the spectral receiving module 10 is configured as a photodiode capable of receiving the characteristic spectral signal, the photodiode capable of receiving the characteristic spectral signal and converting it into an electrical signal, and transmitting the converted electrical signal to the control Module 20; in an initial state, the spectral receiving module 10 is disposed at an initial position of the characteristic spectrum, and in a preferred case, a central position of the spectral receiving module 10 and a central position of an initial position of the characteristic spectrum Coincident, just received all of the characteristic spectral signals. In one embodiment, assuming that the characteristic spectral signal is a weak signal compared to the surrounding spectral signal, then at this time, the spectral receiving signal received by the spectral receiving module 10 has the smallest size.
  • the control module 20 determines that the size exceeds the pre- When the range is set, a corresponding control signal is generated according to the size of the characteristic spectral signal, and the motor module 30 is controlled to drive the spectrum receiving module 10 to move until the size of the characteristic spectral signal received by the spectrum receiving module 10 is received.
  • the spectral receiving module 10 is also mechanically coupled to the motor module 30, and dynamically received by the motor module 30. The characteristic spectrum.
  • the spiral track resistance 40 is also electrically connected to the control module 20 and mechanically connected to the motor module 30, when the control module 20 determines that the size exceeds a preset range, The size of the characteristic spectral signal generates a corresponding control signal, and the motor module 30 is controlled to simultaneously drive the spiral track resistance 40 to change the output resistance value of the spiral track resistance 40 until the spectrum receiving module 10 receives
  • the size of the characteristic spectral signal is within a preset range, that is, the final position at which the characteristic spectral signal is moved is detected, and the output resistance value corresponding to the final position is also obtained.
  • the control module 20 calculates a position value corresponding to the characteristic spectrum according to a change in an output resistance value of the spiral track resistance 40, specifically, a linear relationship between a position of the characteristic spectral signal and the output resistance. According to the principle of determining a straight line at two points, if the initial position, initial output resistance and final output resistance are known, the final position value can be obtained.
  • the motor in the motor module is preferably a stepping motor, and the smaller the step size of the stepping motor, the higher the measurement accuracy.
  • the design measurement accuracy should be considered comprehensively.
  • a stepping motor having a step size of 0.5 or 0.75 can be selected.
  • the first or multi-stage reducer may be disposed before the motor module to further improve the measurement accuracy of the entire measurement system.
  • the embodiment of the present invention receives the characteristic spectral signal through the spectrum receiving module 10, and sends the characteristic spectral signal to the control module 20; the control module 20 generates a control signal according to the characteristic spectral signal to control the motor module 30 to drive the
  • the spiral track resistance 40 and the spectral receiving module 10 move, the spiral track resistance 40 moves under the driving of the motor module 30 to change the output resistance value of the spiral track resistance 40, and the spectrum receiving module 10 is in the motor module 30.
  • Driving the characteristic spectrum control module 20 is dynamically received to change the control signal, and the control module 20 calculates the position value corresponding to the characteristic spectrum according to the change of the output resistance value of the spiral track resistance 40, thereby accurately acquiring the characteristic spectrum. position.
  • FIG. 2 is a schematic structural view of a second preferred embodiment of a system for acquiring a characteristic spectral position according to the present invention
  • the system for acquiring the spectral position of the feature is based on the first preferred embodiment described in FIG. 1 , and further includes a concentrating module 50 disposed at the front end of the spectral receiving module 10 . For collecting the characteristic spectral signals.
  • the concentrating module 50 aggregates the characteristic spectral signals such that the scattered characteristic spectral signals are gathered to overcome problems such as light scattering and interference of the characteristic spectral signals, so that the measured characteristic spectra are obtained.
  • the maximum amount of signal is received by the spectrum receiving module 10 to improve the accuracy of the measuring system.
  • the concentrating module 50 can use a collecting device such as a condensing mirror, a meniscus lens and an LED lamp cup.
  • the concentrating module 50 is integrated with the spectrum receiving module 10, and is driven together with the spectrum receiving module 10 under the driving of the motor module 30 to improve the pair of the spectrum receiving modules 10 in the whole process.
  • the absorption rate of the characteristic spectral signal improves the measurement accuracy.
  • FIG. 3 is a schematic structural view of a first preferred embodiment of the spiral track resistance of the present invention
  • FIG. 4 is a schematic structural view of the first embodiment of the first and second threaded engagement of the spiral track resistance of the present invention.
  • the spiral track resistance 40 includes a resistive body 401, a resistive body 402, and a resistive pointer 403 (not shown in FIG. 3, see FIG. 4):
  • the surface of the resistor body 401 is provided with a first thread 4011; the resistor mating body 402 is provided with a second thread 4021 that meshes with the first thread 4011; a first end 4031 of the resistor pointer 403 and the resistor body 401 (specifically, 4011) is in surface contact, and the second end 4032 of the resistance pointer 403 is fixed on the resistor complex 401 (specifically, 4021).
  • the resistor body 401 and the resistor matching body 402 may be configured as a screw and a thread.
  • the resistor body 401 is configured like a screw.
  • the surface of the resistor body 401 is provided with a first thread 4011, and the resistor body 402 is disposed.
  • the second matching thread 4021 is engaged with the second thread 4011.
  • the first end 4031 of the resistance pointer 403 is in surface contact with the resistor body 401, and the second end 4032 of the resistance pointer 403 is fixed.
  • the resistor body 401 When the spiral track resistance is in operation, the resistor body 401 can be driven to rotate by an external force, and the resistor body 401 drives the resistor partner 402 to drive the resistor pointer 403 to move along the first thread 4011 on the surface of the resistor body 401.
  • the resistance body 401 is driven to rotate by the motor module, and the resistance body 401 drives the resistance matching body 402 to drive the resistance pointer 403 in the The surface of the resistor body 401 moves along the first thread 4011 to change the output resistance value of the spiral track resistance.
  • the resistance matching body 402 can be directly driven to rotate by an external force, and the resistance pointer 403 is moved along the first thread 4011 on the surface of the resistance body 401 to change the spiral track.
  • the output resistance value of the resistor is the resistance value of the resistor.
  • the first thread 4011 and the second thread 4021 are respectively disposed on the resistance body 401 and the resistance matching body 402 of the spiral track resistance, so that the resistance matching body 402 drives the resistance pointer 403 along the surface of the resistance body 401.
  • the first thread 4011 moves to change the output resistance value of the spiral track resistance.
  • the resistance of the spiral track resistance increases the output resistance value of the spiral track resistance. Accuracy meets system accuracy requirements in precision control and precision measurement.
  • FIG. 5 is a schematic structural diagram of a third preferred embodiment of a system for acquiring a characteristic spectral position according to the present invention.
  • the resistance body 401 of the spiral track resistance is mechanically connected to the motor module 30, and the motor module 30 drives the resistance body 401 to move (rotate); the resistance body 401 Driving the resistor mating body 402 to drive the resistor pointer (not shown in the figure, at the junction of the resistor body 401 and the resistor mating body 402) to move along the first thread on the surface of the resistor body 401 to change
  • the output resistance value of the spiral track resistance 40 is described.
  • the spectrum receiving module 10 is disposed on the resistor mating body 402 , and the resistor body 401 of the spiral track resistor is mechanically coupled to the motor module 30 .
  • the resistor body 401 is driven to move, and the resistor body 401 drives the resistor mating body 402 to drive the spectrum receiving module 10 to move.
  • the system for acquiring a characteristic spectral position further includes a signal conversion module 60, and an output end of the spiral track resistance 40 is electrically connected to an input end of the signal conversion module 60, An output end of the signal conversion module 60 is electrically connected to the control module 20, and the signal conversion module 60 is configured to perform signal conversion, signal amplification, and A/D conversion on the output resistance value.
  • the signal conversion 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 refers to converting the output resistance of the spiral track resistance 40 into a corresponding voltage value.
  • the signal amplifying unit amplifies the converted voltage value, and the amplification factor determines the accuracy of the entire system.
  • the amplification factor of the amplifier in the signal amplifying unit is more than 500 times, and is designed as multi-stage filtering and amplification.
  • the linear range of the amplifier used in this embodiment is 0.7v to 3.6v.
  • the specific circuit connection relationship can be obtained by those skilled in the art through the description of this part and the knowledge of the circuit that is mastered, and will not be described herein.
  • the present invention also provides a method of acquiring a characteristic spectral position using a system for acquiring a spectral position of a feature as described above.
  • FIG. 6 is a schematic flowchart diagram of a first preferred embodiment of a method for acquiring a characteristic spectral position according to the present invention
  • the spectrum receiving module receives the characteristic spectrum signal, and sends the characteristic spectrum signal to the control module;
  • the control module generates a control signal according to the size of the characteristic spectral signal, and controls the motor module to drive the spiral track resistance and the spectrum receiving module to move;
  • the spectral receiving module is configured as a photodiode capable of receiving the characteristic spectral signal, the photodiode capable of receiving the characteristic spectral signal and converting it into an electrical signal, and transmitting the converted electrical signal to the control module
  • the spectral receiving module In an initial state, the spectral receiving module is disposed at an initial position of the characteristic spectrum, and in a preferred case, a center position of the spectral receiving module coincides with a center position of an initial position of the characteristic spectrum, just receiving To all of the characteristic spectral signals.
  • the characteristic spectral signal is a weak signal compared to the surrounding spectral signal
  • the spectral receiving signal received by the spectral receiving module has the smallest size.
  • the control module determines that the size exceeds the preset range. And generating a corresponding control signal according to the characteristic spectral signal size, and controlling the motor module to drive the spectral receiving module to move until the size of the characteristic spectral signal received by the spectral receiving module is within a preset range.
  • the final position of the movement of the characteristic spectral signal is detected; therefore, the spectral receiving module is also mechanically coupled to the motor module, and the characteristic spectrum is dynamically received by the motor module.
  • the spiral track resistance is also electrically connected to the control module and mechanically connected to the motor module
  • the control module determines that the size exceeds a preset range
  • the spectral signal is according to the characteristic Resizing a corresponding control signal
  • controlling the motor module to simultaneously drive the spiral track resistance movement to change an output resistance value of the spiral track resistance until the size of the characteristic spectral signal received by the spectral receiving module is Within the preset range, that is, the final position of the movement of the characteristic spectral signal is detected, and the output resistance value corresponding to the final position is also obtained.
  • the control module calculates a position value corresponding to the characteristic spectrum according to a change in an output resistance value of the spiral track resistance, specifically, a linear relationship between a position of the characteristic spectral signal and the output resistance, according to two The point determines the principle of a straight line. If the initial position, initial output resistance, and final output resistance are known, the final position value is obtained.
  • the motor in the motor module is preferably a stepping motor, and the smaller the step size of the stepping motor, the higher the measurement accuracy.
  • the design measurement accuracy should be considered comprehensively.
  • a stepping motor having a step size of 0.5 or 0.75 can be selected.
  • the first or multi-stage reducer may be disposed before the motor module to further improve the measurement accuracy of the entire measurement system.
  • the embodiment of the present invention receives a characteristic spectral signal through a spectrum receiving module, and sends the characteristic spectral signal to the control module; the control module generates a control signal according to the characteristic spectral signal to control the motor module to drive the spiral track resistance and
  • the spectral receiving module moves, the spiral track resistance is moved by the motor module to change an output resistance value of the spiral track resistance, and the spectrum receiving module dynamically receives the characteristic spectrum under the driving of the motor module
  • the control module changes the control signal, and the control module calculates the position value corresponding to the characteristic spectrum according to the change of the output resistance value of the spiral track resistance, thereby accurately acquiring the characteristic spectral position.
  • FIG. 7 is a schematic flowchart diagram of a second preferred embodiment of a method for acquiring a characteristic spectral position according to the present invention.
  • the method further includes the following steps:
  • the concentrating module aggregates the characteristic spectrum signal.
  • the concentrating module aggregates the characteristic spectral signals such that the scattered characteristic spectral signals are gathered to overcome light scattering and interference of the characteristic spectral signals
  • the problem is that the measured maximum amount of the characteristic spectral signal is received by the spectral receiving module to improve the accuracy of the measuring system, and the concentrating module can adopt a collecting device such as a condensing mirror, a meniscus lens and an LED lamp cup.
  • the concentrating module is integrated with the spectrum receiving module, and moves together with the spectrum receiving module under the driving of the motor module to improve the spectral signal of the spectrum receiving module to the characteristic during the whole process. The absorption rate improves the measurement accuracy.
  • FIG. 8 is a schematic flowchart of the refinement of step S20 shown in FIG. 6;
  • control module based on the first preferred embodiment of the method for acquiring the spectral position of the characteristic shown in FIG. 6, the control module generates a control signal according to the size of the characteristic spectral signal, and controls the motor module to drive the spiral track resistance and the The steps of the spectrum receiving module movement include:
  • the control module generates a control signal according to the size of the characteristic spectral signal, and controls the motor module according to the control signal, where the motor module drives a resistance of the spiral track resistor to move; the resistor body drives the device The resistance pointer moves along the first thread on the surface of the resistor body;
  • the control module generates a control signal according to the size of the characteristic spectral signal, and controls the motor to drive the spectrum receiving module to move.
  • the spiral track resistance 40 includes a resistor body 401, a resistor mating body 402, and a resistance pointer 403 (not shown in FIG. 3, see FIG. 4):
  • the surface of the resistor body 401 is provided with a first thread 4011; the resistor mating body 402 is provided with a second thread 4021 that meshes with the first thread 4011; a first end 4031 of the resistor pointer 403 and the resistor body 401 (specifically, 4011) is in surface contact, and the second end 4032 of the resistance pointer 403 is fixed on the resistor complex 401 (specifically, 4021).
  • the resistor body 401 and the resistor body 402 may be configured as a screw and a screw.
  • the resistor body 401 is configured like a screw.
  • the surface of the resistor body 401 is provided with a first thread 4011, and the resistor body 402 is arranged like a screw.
  • the second mating 4021 of the resistive body 402 is engaged with the first thread 4011.
  • the first end 4031 of the resistive pointer 403 is in surface contact with the resistive body 401, and the second end 4032 of the resistive pointer 403 is fixed to the resistor.
  • the resistor body 401 can be driven to rotate by an external force, and the resistor body 401 drives the resistor partner 402 to drive the resistor pointer 403 to move along the first thread 4011 on the surface of the resistor body 401.
  • the resistance body 401 is driven to rotate by the motor module, and the resistance body 401 drives the resistance matching body 402 to drive the resistance pointer 403 in the
  • the surface of the resistor body 401 moves along the first thread 4011 to change the output resistance value of the spiral track resistance.
  • the resistance matching body 402 can be directly driven to rotate by an external force, and the resistance pointer 403 is moved along the first thread 4011 on the surface of the resistance body 401 to change the spiral track.
  • the output resistance value of the resistor is driven to rotate by the motor module, and the resistance body 401 drives the resistance matching body 402 to drive the resistance pointer 403 in the The surface of the resistor body 401 moves along the first thread 4011 to change the output resistance value of the spiral track resistance.
  • the resistance body 401 of the spiral track resistance is mechanically connected to the motor module 30, and the motor module 30 drives the resistance body 401 to move (rotate); the resistance body 401 drives the resistance partner 402. Driving the resistance pointer (not shown in the figure, at the junction of the resistor body 401 and the resistor complex 402) to move along the first thread on the surface of the resistor body 401 to change the output of the spiral track resistor 40 resistance.
  • the spectral receiving module 10 is disposed on the resistance matching body 402.
  • the resistance body 401 of the spiral track resistance is mechanically connected to the motor module 30, and the motor module 30 drives the resistance body 401 to move.
  • the body 401 drives the resistor mating body 402 to drive the spectrum receiving module 10 to move.
  • the size of the characteristic spectral signal received by the spectral receiving module may change, and the control module determines that the size exceeds a preset range. Generating a corresponding control signal according to the characteristic spectral signal size, and controlling the motor module to drive the spectral receiving module to move until the size of the characteristic spectral signal received by the spectral receiving module is within a preset range, that is, A final position of movement of the characteristic spectral signal is detected; therefore, the spectral receiving module is also mechanically coupled to the motor module, and the characteristic spectrum is dynamically received by the motor module.
  • the spiral track resistance is also electrically connected to the control module and mechanically connected to the motor module
  • the control module determines that the size exceeds a preset range
  • the spectral signal is according to the characteristic Resizing a corresponding control signal
  • controlling the motor module to simultaneously drive the spiral track resistance movement to change an output resistance value of the spiral track resistance until the size of the characteristic spectral signal received by the spectral receiving module is Within the preset range, that is, the final position of the movement of the characteristic spectral signal is detected, and the output resistance value corresponding to the final position is also obtained.
  • FIG. 9 is a schematic flowchart diagram of a third preferred embodiment of a method for acquiring a characteristic spectral position according to the present invention.
  • the method for acquiring the spectral position of the feature further includes the following steps:
  • the signal conversion module performs signal conversion, signal amplification and A/D conversion on the output resistance value of the spiral track resistance.
  • the step S50 is located between step S20 and step S30, and the output resistance value of the spiral track resistance is signal-converted before calculating the position of acquiring the characteristic spectrum, which can improve the measurement accuracy of the entire system.
  • the signal conversion module specifically includes a resistance voltage signal conversion unit, a signal amplification unit, and an A/D conversion unit.
  • the resistance voltage signal conversion unit refers to converting an output resistance of the spiral track resistance into a corresponding voltage value, and the signal is amplified.
  • the unit amplifies the converted voltage value, and the amplification factor determines the accuracy of the entire system.
  • the amplification factor of the amplifier in the signal amplifying unit is more than 500 times, and is designed as multi-stage filtering and amplification.
  • the linear range of the amplifier used in this embodiment is 0.7v to 3.6v.
  • FIG. 10 is a schematic flowchart diagram of a fourth preferred embodiment of a method for acquiring a characteristic spectral position according to the present invention.
  • the method for acquiring the spectral position of the feature further includes the following steps:
  • S70 Calculate a position value corresponding to the characteristic spectrum according to the initial position value and the initial output resistance value and the output resistance value.
  • the step S60 is located between the step S10 and the step S20, and the step of acquiring the initial position value of the characteristic spectrum and the corresponding initial output resistance value specifically refers to recording the characteristic spectrum when the object to be tested is in the original state.
  • the initial position value and the initial output resistance value at this time is measured by the spiral track resistance.
  • Step S70 is located after step S30, and the control module calculates a position value corresponding to the characteristic spectrum according to the initial position value and the initial output resistance value and the output resistance value, specifically, the position of the characteristic spectral signal and There is a linear relationship between the output resistors.
  • the final position value can be obtained.
  • the final position value of the characteristic spectrum can be calculated more accurately by recording and measuring the initial position value and the initial output resistance value.

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Abstract

一种获取特征光谱位置的系统，通过光谱接收模块（10）接收特征光谱信号，并将所述特征光谱信号发送至控制模块（20）；控制模块（20）根据所述特征光谱信号生成控制信号控制电机模块（30）带动螺旋轨道电阻（40）和所述光谱接收模块（10）运动，螺旋轨道电阻（40）在所述电机模块（30）的驱动下运动以改变所述螺旋轨道电阻（40）的输出电阻值，光谱接收模块（10）在所述电机模块（30）的驱动下，动态的接收所述特征光谱以改变控制信号，控制模块（20）根据所述螺旋轨道电阻（40）的输出电阻值的变化计算所述特征光谱对应的位置值。该系统克服了不能准确获取特征光谱位置的缺陷。

Description

获取特征光谱位置的系统和方法
技术领域
本发明涉及生物医学技术领域，尤其涉及一种获取特征光谱位置的系统和方法。
背景技术
表面等离子共振技术SPR（Surface Plasmon Resonance）是利用金属膜/液面界面光的全反射连接引起的一种物理光学现象来分析生物分子相互作用的一项新兴技术。通过红外光结合SPR技术测量生物标志物浓度的方法虽然已经引入生物医学领域，但如何准确获取特征光谱位置，从而计算生物标志物的浓度的系统和方法却没有。
基于此，设计一种准确获取特征光谱位置的系统和方法，是生物医学领域亟待解决的问题。
发明内容
本发明的主要目的在于提供一种准确获取特征光谱位置的系统和方法，解决现有技术中不能准确获取特征光谱位置的缺陷。
为实现上述目的，本发明提供了一种获取特征光谱位置的系统，所述获取特征光谱位置的系统包括光谱接收模块、控制模块、电机模块和螺旋轨道电阻：
所述光谱接收模块，与所述控制模块电连接，以及与所述电机模块机械连接，用于接收特征光谱信号，并将所述特征光谱信号发送至所述控制模块；
所述控制模块，与所述电机模块电连接，用于根据所述特征光谱信号生成控制信号控制所述电机模块带动所述螺旋轨道电阻和所述光谱接收模块运动，并根据所述螺旋轨道电阻的输出电阻值的变化计算所述特征光谱对应的位置值；
所述螺旋轨道电阻，与所述控制模块电连接，以及与所述电机模块机械连接在所述电机模块的驱动下运动以改变所述螺旋轨道电阻的输出电阻值。
优选地，所述获取特征光谱位置的系统还包括聚光模块，所述聚光模块设置于所述光谱接收模块的前端，用于聚集所述特征光谱信号。
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；所述电阻配合体设置有与所述第一螺纹啮合的第二螺纹；所述电阻指针的第一端与所述电阻本体表面接触，所述电阻指针的第二端固定于所述电阻配合体上。
优选地，所述螺旋轨道电阻的电阻本体与所述电机模块机械连接，所述电机模块驱动所述电阻本体运动；所述电阻本体驱动所述电阻配合体带动所述电阻指针在所述电阻本体表面沿所述第一螺纹移动，以改变所述螺旋轨道电阻的输出电阻值。
优选地，所述光谱接收模块设置于所述电阻配合体上，所述螺旋轨道电阻的电阻本体与所述电机模块机械连接，所述电机模块驱动所述电阻本体运动，所述电阻本体驱动所述电阻配合体带动所述光谱接收模块运动。
此外，为实现上述目的，本发明还提供一种使用获取特征光谱位置的系统的获取特征光谱位置的方法，所述获取特征光谱位置的方法包括如下步骤：
光谱接收模块接收特征光谱信号，并将所述特征光谱信号发送至控制模块；
控制模块根据所述特征光谱信号的大小生成控制信号，控制电机模块带动螺旋轨道电阻和光谱接收模块运动；
当所述电机模块停止运动时，控制模块获得螺旋轨道电阻的输出电阻值，根据所述输出电阻值获取特征光谱的位置。
优选地，所述获取特征光谱位置的方法还包括如下步骤：
获取所述特征光谱的初始位置值和对应的初始输出电阻值；
根据所述初始位置值和所述初始输出电阻值以及所述输出电阻值计算所述特征光谱对应的位置值。
优选地，所述光谱接收模块获取特征光谱信号的步骤之前还包括如下步骤：
聚光模块聚集所述特征光谱信号。
优选地，所述获取特征光谱位置的方法还包括如下步骤：
获取所述特征光谱的初始位置值和对应的初始输出电阻值；
根据所述初始位置值和所述初始输出电阻值以及所述输出电阻值计算所述特征光谱对应的位置值。
优选地，所述控制模块根据所述特征光谱信号的大小生成控制信号，控制电机模块带动螺旋轨道电阻和所述光谱接收模块运动的步骤包括：
所述控制模块根据所述特征光谱信号的大小生成控制信号，根据所述控制信号控制所述电机模块，所述电机模块驱动螺旋轨道电阻的电阻配合体运动；所述电阻配合体带动所述电阻指针在所述电阻本体表面沿所述第一螺纹移动；
所述控制模块根据所述特征光谱信号的大小生成控制信号，控制所述电机带动光谱接收模块运动。
优选地，所述获取特征光谱位置的方法还包括如下步骤：
获取所述特征光谱的初始位置值和对应的初始输出电阻值；
根据所述初始位置值和所述初始输出电阻值以及所述输出电阻值计算所述特征光谱对应的位置值。
优选地，所述获取特征光谱位置的方法还包括如下步骤：
信号转换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，所述获取特征光谱位置的方法还包括如下步骤：
获取所述特征光谱的初始位置值和对应的初始输出电阻值；
根据所述初始位置值和所述初始输出电阻值以及所述输出电阻值计算所述特征光谱对应的位置值。
本发明采用上述技术方案，带来的技术效果为：通过光谱接收模块接收特征光谱信号，并将所述特征光谱信号发送至所述控制模块；控制模块根据所述特征光谱信号生成控制信号控制所述电机模块带动所述螺旋轨道电阻和所述光谱接收模块运动，螺旋轨道电阻在所述电机模块的驱动下运动以改变所述螺旋轨道电阻的输出电阻值，光谱接收模块在所述电机模块的驱动下，动态的接收所述特征光谱控制模块以改变控制信号，控制模块根据所述螺旋轨道电阻的输出电阻值的变化计算所述特征光谱对应的位置值，从而准确获取特征光谱位置。
附图说明
图1为本发明获取特征光谱位置的系统第一优选实施例结构示意图；
图2为本发明获取特征光谱位置的系统第二优选实施例结构示意图；
图3为本发明螺旋轨道电阻第一优选实施例结构示意图；
图4为本发明螺旋轨道电阻第一螺纹和第二螺纹啮合第一实施例结构示意图；
图5为本发明获取特征光谱位置的系统第三优选实施例结构示意图；
图6为本发明获取特征光谱位置的方法第一优选实施例流程示意图；
图7为本发明获取特征光谱位置的方法第二优选实施例流程示意图；
图8为图6所示步骤S20的细化流程示意图；
图9为本发明获取特征光谱位置的方法第三优选实施例流程示意图；
图10为本发明获取特征光谱位置的方法第四优选实施例流程示意图。
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。
本发明的主要目的在于提供一种准确获取特征光谱位置的系统和方法，解决现有技术中不能准确获取特征光谱位置的缺陷。
为实现上述目的，本发明提供了一种获取特征光谱位置的系统。
参照图1，图1为本发明获取特征光谱位置的系统第一优选实施例结构示意图；
所述获取特征光谱位置的系统包括光谱接收模块10、控制模块20、电机模块30和螺旋轨道电阻40：
所述光谱接收模块10，与所述控制模块20电连接，以及与所述电机模块30机械连接，用于接收特征光谱信号，并将所述特征光谱信号发送至所述控制模块20；
所述控制模块20，与所述电机模块30电连接，用于根据所述特征光谱信号生成控制信号控制所述电机模块30带动所述螺旋轨道电阻40和所述光谱接收模块10运动，并根据所述螺旋轨道电阻40的输出电阻值的变化计算所述特征光谱对应的位置值；
所述螺旋轨道电阻40，与所述控制模块20电连接，以及与所述电机模块30机械连接，在所述电机模块30的驱动下运动以改变所述螺旋轨道电阻40的输出电阻值。
所述光谱接收模块10设置为能够接收所述特征光谱信号的光电二极管，所述光电二极管能够接收所述特征光谱信号并将其转化为电信号，并将转化后的电信号发送至所述控制模块20；在初始状态下，所述光谱接收模块10设置于所述特征光谱的初始位置，且在优选情况下，所述光谱接收模块10的中心位置与所述特征光谱的初始位置的中心位置重合，刚好接收到全部的所述特征光谱信号。在一个实施例中，假设所述特征光谱信号与周围光谱信号相比为弱信号，则此时，所述光谱接收模块10接收到的特征光谱信号大小最小。同时，由于所述特征光谱会随待测物的变化而移动，即所述光谱接收模块10接收到的特征光谱信号的大小会发生改变，当所述控制模块20判断出所述的大小超过预设范围时，会根据所述特征光谱信号大小生成对应的控制信号，控制所述电机模块30驱动所述光谱接收模块10运动，直到所述光谱接收模块10接收到的所述特征光谱信号的大小在预设范围内，即检测到所述特征光谱信号移动的最终位置；因此，所述光谱接收模块10还与所述电机模块30机械连接，在所述电机模块30的驱动下，动态的接收所述特征光谱。
同时，由于所述螺旋轨道电阻40亦与所述控制模块20电连接，以及与所述电机模块30机械连接，当所述控制模块20判断出所述的大小超过预设范围时，会根据所述特征光谱信号的大小生成对应的控制信号，控制所述电机模块30同时驱动所述螺旋轨道电阻40运动以改变所述螺旋轨道电阻40的输出电阻值，直到所述光谱接收模块10接收到的所述特征光谱信号的大小在预设范围内，即检测到所述特征光谱信号移动的最终位置，也得到最终位置对应的输出电阻值。所述控制模块20根据所述螺旋轨道电阻40的输出电阻值的变化计算所述特征光谱对应的位置值，具体是指，所述特征光谱信号的位置与所述输出电阻之间有线性关系，根据两点确定一条直线的原理，若已知初始位置、初始输出电阻以及最终输出电阻，即可得出最终位置值。
所述电机模块中的电机优选为步进电机，所述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。在本实施例测量特征光谱位置的测量系统中，可选择步长为0.5°或0.75°的步进电机。在对测量精度要求更加精密的测量系统中，所述在所述电机模块之前可设置一级或多级减速器，以进一步提高整个测量系统的测量精度。
本发明实施例通过光谱接收模块10接收特征光谱信号，并将所述特征光谱信号发送至所述控制模块20；控制模块20根据所述特征光谱信号生成控制信号控制所述电机模块30带动所述螺旋轨道电阻40和所述光谱接收模块10运动，螺旋轨道电阻40在所述电机模块30的驱动下运动以改变所述螺旋轨道电阻40的输出电阻值，光谱接收模块10在所述电机模块30的驱动下，动态的接收所述特征光谱控制模块20以改变控制信号，控制模块20根据所述螺旋轨道电阻40的输出电阻值的变化计算所述特征光谱对应的位置值，从而准确获取特征光谱位置。
参照图2，图2为本发明获取特征光谱位置的系统第二优选实施例结构示意图；
在其中一个实施例中，所述获取特征光谱位置的系统基于图1所述的第一优选实施例，还包括聚光模块50，所述聚光模块50设置于所述光谱接收模块10的前端，用于聚集所述特征光谱信号。
具体地，所述聚光模块50对所述特征光谱信号进行聚集，使得散射的所述特征光谱信号聚拢，以克服所述特征光谱信号的光线散射和干涉等问题，使测量的所述特征光谱信号最大量的被所述光谱接收模块10接收，提高测量系统的精确度，该聚光模块50可以采用聚光镜、凹凸透镜和LED灯杯等具有聚光作用的装置。优选地，所述聚光模块50与所述光谱接收模块10集成于一体，与所述光谱接收模块10一起在所述电机模块30的驱动下运动，提高整个过程中所述光谱接收模块10对所述特征光谱信号的吸收率，提高测量精度。
参照图3、图4，图3为本发明螺旋轨道电阻第一优选实施例结构示意图；图4为本发明螺旋轨道电阻第一螺纹和第二螺纹啮合第一实施例结构示意图。
在其中一个实施例中，所述螺旋轨道电阻40包括电阻本体401、电阻配合体402和电阻指针403（图3中未示出，参照图4）：
所述电阻本体401表面设置有第一螺纹4011；所述电阻配合体402设置有与所述第一螺纹4011啮合的第二螺纹4021；所述电阻指针403的第一端4031与所述电阻本体401（具体指4011）表面接触，所述电阻指针403的第二端4032固定于所述电阻配合体401（具体指4021）上。
具体地，所述电阻本体401和所述电阻配合体402可以设置为螺杆和螺纹的结构，电阻本体401设置为类似螺杆的结构，电阻本体401表面设置有第一螺纹4011，电阻配合体402设置为类似螺帽的结构，电阻配合体402上设置有与第一螺纹4011啮合的第二螺纹4021，电阻指针403的第一端4031与电阻本体401表面接触，电阻指针403的第二端4032固定于电阻配合体402上。所述螺旋轨道电阻工作时，可以通过外力驱动所述电阻本体401转动，电阻本体401驱动所述电阻配合体402带动所述电阻指针403在所述电阻本体401表面沿所述第一螺纹4011移动，以改变所述螺旋轨道电阻的输出电阻值，在本发明实施例中，通过电机模块驱动所述电阻本体401转动，电阻本体401驱动所述电阻配合体402带动所述电阻指针403在所述电阻本体401表面沿所述第一螺纹4011移动，以改变所述螺旋轨道电阻的输出电阻值。所述螺旋轨道电阻工作时，还可以通过外力直接驱动所述电阻配合体402转动，带动所述电阻指针403在所述电阻本体401表面沿所述第一螺纹4011移动，以改变所述螺旋轨道电阻的输出电阻值。
本发明实施例通过分别在所述螺旋轨道电阻的电阻本体401和电阻配合体402上设置第一螺纹4011和第二螺纹4021，使电阻配合体402带动电阻指针403在电阻本体401表面沿所述第一螺纹4011移动，从而改变螺旋轨道电阻的输出电阻值，对比现有技术中的电阻指针沿电阻本体直线方向移动，本发明实施例提供的螺旋轨道电阻提高了螺旋轨道电阻的输出电阻值的精度，能够满足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为本发明获取特征光谱位置的系统第三优选实施例结构示意图；
参照图5，在其中一个实施例中，所述螺旋轨道电阻的电阻本体401与所述电机模块30机械连接，所述电机模块30驱动所述电阻本体401运动（转动）；所述电阻本体401驱动所述电阻配合体402带动所述电阻指针（图中未示出，位于电阻本体401与电阻配合体402的结合处）在所述电阻本体401表面沿所述第一螺纹移动，以改变所述螺旋轨道电阻40的输出电阻值。
参照图5，在其中一个实施例中，所述光谱接收模块10设置于所述电阻配合体402上，所述螺旋轨道电阻的电阻本体401与所述电机模块30机械连接，所述电机模块30驱动所述电阻本体401运动，所述电阻本体401驱动所述电阻配合体402带动所述光谱接收模块10运动。
参照图5，在其中一个实施例中，所述获取特征光谱位置的系统还包括信号转换模块60，所述螺旋轨道电阻40的输出端与所述信号转换模块60的输入端电连接，所述信号转换模块60的输出端与所述控制模块20电连接，所述信号转换模块60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。所述信号转换模块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是指将所述螺旋轨道电阻40的输出电阻转换为对应的电压值，所述信号放大单元对所述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到3.6v。A/D转换单元中数模转换器的位数越高，测量精度越高，本实施例采用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。
为实现上述目的，本发明还提供了一种使用上述获取特征光谱位置的系统的获取特征光谱位置的方法。
参照图6，图6为本发明获取特征光谱位置的方法第一优选实施例流程示意图；
所述获取特征光谱位置的方法包括如下步骤：
S10：光谱接收模块接收特征光谱信号，并将所述特征光谱信号发送至控制模块；
S20：控制模块根据所述特征光谱信号的大小生成控制信号，控制电机模块带动螺旋轨道电阻和光谱接收模块运动；
S30：当所述电机模块停止运动时，控制模块获得螺旋轨道电阻的输出电阻值，根据所述输出电阻值获取特征光谱的位置。
所述光谱接收模块设置为能够接收所述特征光谱信号的光电二极管，所述光电二极管能够接收所述特征光谱信号并将其转化为电信号，并将转化后的电信号发送至所述控制模块；在初始状态下，所述光谱接收模块设置于所述特征光谱的初始位置，且在优选情况下，所述光谱接收模块的中心位置与所述特征光谱的初始位置的中心位置重合，刚好接收到全部的所述特征光谱信号。在一个实施例中，假设所述特征光谱信号与周围光谱信号相比为弱信号，则此时，所述光谱接收模块接收到的特征光谱信号大小最小。同时，由于所述特征光谱会随待测物的变化而移动，即所述光谱接收模块接收到的特征光谱信号的大小会发生改变，当所述控制模块判断出所述的大小超过预设范围时，会根据所述特征光谱信号大小生成对应的控制信号，控制所述电机模块驱动所述光谱接收模块运动，直到所述光谱接收模块接收到的所述特征光谱信号的大小在预设范围内，即检测到所述特征光谱信号移动的最终位置；因此，所述光谱接收模块还与所述电机模块机械连接，在所述电机模块的驱动下，动态的接收所述特征光谱。
同时，由于所述螺旋轨道电阻亦与所述控制模块电连接，以及与所述电机模块机械连接，当所述控制模块判断出所述的大小超过预设范围时，会根据所述特征光谱信号的大小生成对应的控制信号，控制所述电机模块同时驱动所述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，直到所述光谱接收模块接收到的所述特征光谱信号的大小在预设范围内，即检测到所述特征光谱信号移动的最终位置，也得到最终位置对应的输出电阻值。所述控制模块根据所述螺旋轨道电阻的输出电阻值的变化计算所述特征光谱对应的位置值，具体是指，所述特征光谱信号的位置与所述输出电阻之间有线性关系，根据两点确定一条直线的原理，若已知初始位置、初始输出电阻以及最终输出电阻，即可得出最终位置值。
所述电机模块中的电机优选为步进电机，所述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。在本实施例测量特征光谱位置的测量系统中，可选择步长为0.5°或0.75°的步进电机。在对测量精度要求更加精密的测量系统中，所述在所述电机模块之前可设置一级或多级减速器，以进一步提高整个测量系统的测量精度。
本发明实施例通过光谱接收模块接收特征光谱信号，并将所述特征光谱信号发送至所述控制模块；控制模块根据所述特征光谱信号生成控制信号控制所述电机模块带动所述螺旋轨道电阻和所述光谱接收模块运动，螺旋轨道电阻在所述电机模块的驱动下运动以改变所述螺旋轨道电阻的输出电阻值，光谱接收模块在所述电机模块的驱动下，动态的接收所述特征光谱控制模块以改变控制信号，控制模块根据所述螺旋轨道电阻的输出电阻值的变化计算所述特征光谱对应的位置值，从而准确获取特征光谱位置。
参照图7，图7为本发明获取特征光谱位置的方法第二优选实施例流程示意图；
在其中一个实施例中，基于图6所示的获取特征光谱位置的方法第一优选实施例，在所述光谱接收模块获取特征光谱信号的步骤之前还包括如下步骤：
S40：聚光模块聚集所述特征光谱信号。
在所述光谱接收模块获取特征光谱信号的步骤之前，所述聚光模块对所述特征光谱信号进行聚集，使得散射的所述特征光谱信号聚拢，以克服所述特征光谱信号的光线散射和干涉等问题，使测量的所述特征光谱信号最大量的被所述光谱接收模块接收，提高测量系统的精确度，该聚光模块可以采用聚光镜、凹凸透镜和LED灯杯等具有聚光作用的装置。优选地，所述聚光模块与所述光谱接收模块集成于一体，与所述光谱接收模块一起在所述电机模块的驱动下运动，提高整个过程中所述光谱接收模块对所述特征光谱信号的吸收率，提高测量精度。
参照图8，图8为图6所示步骤S20的细化流程示意图；
在其中一个实施例中，基于图6所示的获取特征光谱位置的方法第一优选实施例，所述控制模块根据所述特征光谱信号的大小生成控制信号，控制电机模块带动螺旋轨道电阻和所述光谱接收模块运动的步骤包括：
S201：所述控制模块根据所述特征光谱信号的大小生成控制信号，根据所述控制信号控制所述电机模块，所述电机模块驱动螺旋轨道电阻的电阻配合体运动；所述电阻配合体带动所述电阻指针在所述电阻本体表面沿所述第一螺纹移动；
S202：所述控制模块根据所述特征光谱信号的大小生成控制信号，控制所述电机带动光谱接收模块运动。
参照图3、图4，所述螺旋轨道电阻40包括电阻本体401、电阻配合体402和电阻指针403（图3中未示出，参照图4）：
所述电阻本体401表面设置有第一螺纹4011；所述电阻配合体402设置有与所述第一螺纹4011啮合的第二螺纹4021；所述电阻指针403的第一端4031与所述电阻本体401（具体指4011）表面接触，所述电阻指针403的第二端4032固定于所述电阻配合体401（具体指4021）上。所述电阻本体401和所述电阻配合体402可以设置为螺杆和螺纹的结构，电阻本体401设置为类似螺杆的结构，电阻本体401表面设置有第一螺纹4011，电阻配合体402设置为类似螺帽的结构，电阻配合体402上设置有与第一螺纹4011啮合的第二螺纹4021，电阻指针403的第一端4031与电阻本体401表面接触，电阻指针403的第二端4032固定于电阻配合体402上。所述螺旋轨道电阻工作时，可以通过外力驱动所述电阻本体401转动，电阻本体401驱动所述电阻配合体402带动所述电阻指针403在所述电阻本体401表面沿所述第一螺纹4011移动，以改变所述螺旋轨道电阻的输出电阻值，在本发明实施例中，通过电机模块驱动所述电阻本体401转动，电阻本体401驱动所述电阻配合体402带动所述电阻指针403在所述电阻本体401表面沿所述第一螺纹4011移动，以改变所述螺旋轨道电阻的输出电阻值。所述螺旋轨道电阻工作时，还可以通过外力直接驱动所述电阻配合体402转动，带动所述电阻指针403在所述电阻本体401表面沿所述第一螺纹4011移动，以改变所述螺旋轨道电阻的输出电阻值。
参照图5，所述螺旋轨道电阻的电阻本体401与所述电机模块30机械连接，所述电机模块30驱动所述电阻本体401运动（转动）；所述电阻本体401驱动所述电阻配合体402带动所述电阻指针（图中未示出，位于电阻本体401与电阻配合体402的结合处）在所述电阻本体401表面沿所述第一螺纹移动，以改变所述螺旋轨道电阻40的输出电阻值。所述光谱接收模块10设置于所述电阻配合体402上，所述螺旋轨道电阻的电阻本体401与所述电机模块30机械连接，所述电机模块30驱动所述电阻本体401运动，所述电阻本体401驱动所述电阻配合体402带动所述光谱接收模块10运动。
由于所述特征光谱会随待测物的变化而移动，即所述光谱接收模块接收到的特征光谱信号的大小会发生改变，当所述控制模块判断出所述的大小超过预设范围时，会根据所述特征光谱信号大小生成对应的控制信号，控制所述电机模块驱动所述光谱接收模块运动，直到所述光谱接收模块接收到的所述特征光谱信号的大小在预设范围内，即检测到所述特征光谱信号移动的最终位置；因此，所述光谱接收模块还与所述电机模块机械连接，在所述电机模块的驱动下，动态的接收所述特征光谱。
同时，由于所述螺旋轨道电阻亦与所述控制模块电连接，以及与所述电机模块机械连接，当所述控制模块判断出所述的大小超过预设范围时，会根据所述特征光谱信号的大小生成对应的控制信号，控制所述电机模块同时驱动所述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，直到所述光谱接收模块接收到的所述特征光谱信号的大小在预设范围内，即检测到所述特征光谱信号移动的最终位置，也得到最终位置对应的输出电阻值。
参照图9，图9为本发明获取特征光谱位置的方法第三优选实施例流程示意图；
在其中一个实施例中，基于图7所示获取特征光谱位置的方法的第二实施例，所述获取特征光谱位置的方法还包括如下步骤：
S50：信号转换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，所述步骤S50位于步骤S20和步骤S30之间，在计算获取特征光谱的位置之前对所述螺旋轨道电阻的输出电阻值进行信号转换，能够提高整个系统的测量精度。所述信号转换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，电阻电压信号转换单元是指将所述螺旋轨道电阻的输出电阻转换为对应的电压值，所述信号放大单元对所述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到3.6v。A/D转换单元中数模转换器的位数越高，测量精度越高，本实施例采用24位的数模转换器。
参照图10，图10为本发明获取特征光谱位置的方法第四优选实施例流程示意图；
在其中一个实施例中，基于图7所示获取特征光谱位置的方法的第二实施例，所述获取特征光谱位置的方法还包括如下步骤：
S60：获取所述特征光谱的初始位置值和对应的初始输出电阻值；
S70：根据所述初始位置值和所述初始输出电阻值以及所述输出电阻值计算所述特征光谱对应的位置值。
优选地，步骤S60位于步骤S10与步骤S20之间，获取所述特征光谱的初始位置值和对应的初始输出电阻值的步骤具体是指，在待测物处于原始状态时，记录所述特征光谱的初始位置值，并通过所述螺旋轨道电阻测量此时的初始输出电阻值。步骤S70位于步骤S30之后，控制模块根据所述初始位置值和所述初始输出电阻值以及所述输出电阻值计算所述特征光谱对应的位置值，具体是指，所述特征光谱信号的位置与所述输出电阻之间有线性关系，根据两点确定一条直线的原理，若已知初始位置值、初始输出电阻值以及最终输出电阻，即可得出最终位置值。通过记录和测量初始位置值和初始输出电阻值能够更准确的计算出特征光谱最终位置值。
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 (13)

  1. 一种获取特征光谱位置的系统，其特征在于，所述获取特征光谱位置的系统包括光谱接收模块、控制模块、电机模块和螺旋轨道电阻：
    所述光谱接收模块，与所述控制模块电连接，以及与所述电机模块机械连接，用于接收特征光谱信号，并将所述特征光谱信号发送至所述控制模块；
    所述控制模块，与所述电机模块电连接，用于根据所述特征光谱信号生成控制信号控制所述电机模块带动所述螺旋轨道电阻和所述光谱接收模块运动，并根据所述螺旋轨道电阻的输出电阻值的变化计算所述特征光谱对应的位置值；
    所述螺旋轨道电阻，与所述控制模块电连接，以及与所述电机模块机械连接在所述电机模块的驱动下运动以改变所述螺旋轨道电阻的输出电阻值。
  2. 如权利要求1所述的获取特征光谱位置的系统，其特征在于，所述获取特征光谱位置的系统还包括聚光模块，所述聚光模块设置于所述光谱接收模块的前端，用于聚集所述特征光谱信号。
  3. 如权利要求1所述的获取特征光谱位置的系统，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；所述电阻配合体设置有与所述第一螺纹啮合的第二螺纹；所述电阻指针的第一端与所述电阻本体表面接触，所述电阻指针的第二端固定于所述电阻配合体上。
  4. 如权利要求3所述的获取特征光谱位置的系统，其特征在于，所述螺旋轨道电阻的电阻本体与所述电机模块机械连接，所述电机模块驱动所述电阻本体运动；所述电阻本体驱动所述电阻配合体带动所述电阻指针在所述电阻本体表面沿所述第一螺纹移动，以改变所述螺旋轨道电阻的输出电阻值。
  5. 如权利要求3所述的获取特征光谱位置的系统，其特征在于，所述光谱接收模块设置于所述电阻配合体上，所述螺旋轨道电阻的电阻本体与所述电机模块机械连接，所述电机模块驱动所述电阻本体运动，所述电阻本体驱动所述电阻配合体带动所述光谱接收模块运动。
  6. 一种使用如权利要求1所述的获取特征光谱位置的系统的获取特征光谱位置的方法，其特征在于，所述获取特征光谱位置的方法包括如下步骤：
    光谱接收模块接收特征光谱信号，并将所述特征光谱信号发送至控制模块；
    控制模块根据所述特征光谱信号的大小生成控制信号，控制电机模块带动螺旋轨道电阻和光谱接收模块运动；
    当所述电机模块停止运动时，控制模块获得螺旋轨道电阻的输出电阻值，根据所述输出电阻值获取特征光谱的位置。
  7. 如权利要求6所述的获取特征光谱位置的方法，其特征在于，所述获取特征光谱位置的方法还包括如下步骤：
    获取所述特征光谱的初始位置值和对应的初始输出电阻值；
    根据所述初始位置值和所述初始输出电阻值以及所述输出电阻值计算所述特征光谱对应的位置值。
  8. 如权利要求6所述的获取特征光谱位置的方法，其特征在于，所述光谱接收模块获取特征光谱信号的步骤之前还包括如下步骤：
    聚光模块聚集所述特征光谱信号。
  9. 如权利要求8所述的获取特征光谱位置的方法，其特征在于，所述获取特征光谱位置的方法还包括如下步骤：
    获取所述特征光谱的初始位置值和对应的初始输出电阻值；
    根据所述初始位置值和所述初始输出电阻值以及所述输出电阻值计算所述特征光谱对应的位置值。
  10. 如权利要求6所述的获取特征光谱位置的方法，其特征在于，所述控制模块根据所述特征光谱信号的大小生成控制信号，控制电机模块带动螺旋轨道电阻和所述光谱接收模块运动的步骤包括：
    所述控制模块根据所述特征光谱信号的大小生成控制信号，根据所述控制信号控制所述电机模块，所述电机模块驱动螺旋轨道电阻的电阻配合体运动；所述电阻配合体带动所述电阻指针在所述电阻本体表面沿所述第一螺纹移动；
    所述控制模块根据所述特征光谱信号的大小生成控制信号，控制所述电机带动光谱接收模块运动。
  11. 如权利要求10所述的获取特征光谱位置的方法，其特征在于，所述获取特征光谱位置的方法还包括如下步骤：
    获取所述特征光谱的初始位置值和对应的初始输出电阻值；
    根据所述初始位置值和所述初始输出电阻值以及所述输出电阻值计算所述特征光谱对应的位置值。
  12. 如权利要求6所述的获取特征光谱位置的方法，其特征在于，所述获取特征光谱位置的方法还包括如下步骤：
    信号转换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。
  13. 如权利要求12所述的获取特征光谱位置的方法，其特征在于，所述获取特征光谱位置的方法还包括如下步骤：
    获取所述特征光谱的初始位置值和对应的初始输出电阻值；
    根据所述初始位置值和所述初始输出电阻值以及所述输出电阻值计算所述特征光谱对应的位置值。
PCT/CN2015/073839 2015-02-06 2015-03-07 获取特征光谱位置的系统和方法 Ceased WO2016123838A1 (zh)

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