CN106197697A - A kind of temperature-detecting device - Google Patents
A kind of temperature-detecting device Download PDFInfo
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- CN106197697A CN106197697A CN201610678062.7A CN201610678062A CN106197697A CN 106197697 A CN106197697 A CN 106197697A CN 201610678062 A CN201610678062 A CN 201610678062A CN 106197697 A CN106197697 A CN 106197697A
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- temperature
- module
- detecting device
- central processing
- processing module
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
-
- 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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
- G01N21/274—Calibration, base line adjustment, drift correction
Abstract
The present invention relates to detecting instrument technical field, particularly relate to a kind of temperature-detecting device.The invention provides a kind of temperature-detecting device, comprising: temperature collect module, for detecting and gather the temperature data of sample surfaces；Central processing module, for the data received and treatment temperature acquisition module is collected, exports result；Display module, is connected with central processing module, is used for showing result；Power module, is used for exporting stabling current, provides electric energy for temperature collect module, central processing module and display module.The temperature-detecting device that the application provides, simple in construction, easy to operate, sample surface temperature can be monitored in real time, and by coordinating with near infrared spectrometer, the near infrared spectrum testing result of sample can be modified by staff according to the temperature parameter shown on display module, it is ensured that the accuracy of sample spectra information, improve the levels of precision of spectral measurement, practical.
Description
Technical field
The present invention relates to detecting instrument technical field, particularly relate to a kind of temperature-detecting device, be specifically related to a kind of structure
Simple and the temperature-detecting device of near infrared spectrometer testing result accuracy can be improved.
Background technology
Near infrared spectroscopic method, compared with tradition meat chemical composition detection method, has quick, simple, lossless etc.
Measuring characteristic.Along with scientific technological advance, near infrared spectrometer starts to move towards production scene from laboratory, is widely used in
Agricultural product and the online or offline inspection of other sample quality.The most compounds of agricultural product contains different hydrogen groups, no
All differ in the absorption position of near infrared region and absorption intensity with group, thus may utilize near infrared spectrum and can obtain agriculture
The composition of product, structural information, and then component content in agricultural product and various quality are carried out qualitative or quantitative analysis.
Research shows: near infrared spectrum is had a significant impact by sample temperature, the near infrared spectrum to one-component, temperature shadow
Ring rule the most obvious；For complex system, temperature has considerable influence to biological organism optical characteristic.Specifically, variations in temperature
Cause the change of power between interior molecules, show as spectrum vibration change；Variations in temperature also causes hydrone bending and stretching vibration
Change, and then cause the absorption bands of hydrone OH group and power to change.As Delwiche etc. (Delwiche S R,
Norris K H, Pitt R E.Appl.Spectroscopy, 1992,46:782) have detected-80 DEG C to 60 DEG C Semen Tritici aestivi form sediment
Powder, microcrystalline Cellulose and the water near infrared spectrum at 1000～2500nm wave bands, Florian etc. (Florian Wulfert,
Wim Th Kok, Age K Smilde.Anal.Chem., 1998,70:1761) ethanol/water/2 third when acquiring 30 DEG C to 70 DEG C
The Short-wave near-infrared spectroscopy of mixed alkoxide solution, all shows that the testing result of nir instrument is affected very big by sample temperature.Always
For, at different temperatures, in molecule, the most isoplastic near infrared light spectrum signature influence is different, therefore near infrared light
The change of the sample surface temperature of spectrometer can make the analysis result generation significant change of near infrared spectrometer, thus causes detection
The testing result of object is inaccurate.
Summary of the invention
(1) to solve the technical problem that
It is an object of the invention to: a kind of simple in construction is provided and the temperature of near infrared spectrometer testing result accuracy can be improved
Degree detection device, to solve the inaccurate problem of testing result that existing near infrared spectrometer causes because of sample temperature difference.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of temperature-detecting device, coordinate with near infrared spectrometer
Connect, for the temperature of sample surfaces is carried out on-line measurement and correction, to improve the accuracy of detection of described near infrared spectrometer,
Comprising:
Temperature collect module, for detecting and gather the temperature data of described sample surfaces；
Central processing module, for receiving and process the data that described temperature collect module is collected, output processes knot
Really；
Display module, is connected with described central processing module, is used for showing described result；
Power module, is used for exporting stabling current, carries for described temperature collect module, central processing module and display module
For electric energy.
Wherein, described temperature collect module includes temperature sensor and temperature signal regulation circuit, described temperature sensor
It is connected with described central processing module by described temperature signal regulation circuit；Described near infrared light is located in described temperature sensor
On the test surface of spectrometer, for detecting the temperature of described sample surfaces.
Wherein, described temperature signal regulation circuit includes constant-current source circuit, described temperature sensor and described constant-current source electricity
Road connects.
Wherein, described central processing module includes single-chip minimum system and A/D transform subblock, and described A/D changes son
Module is located between described temperature signal regulation circuit and single-chip minimum system, and described A/D transform subblock is for by described
The analog signal voltage value of temperature signal regulation circuit output is converted to digital signal and passes to described single-chip minimum system
Being read out, described single-chip minimum system is identified process to the described digital signal read and obtains measured temperature, institute
State display module to be connected with described single-chip minimum system, be used for showing described measured temperature.
Wherein, described display module includes the LCDs being connected with described central processing module, described liquid crystal display
Screen is for showing the temperature of the described sample surfaces after described central processing module processes.
Wherein, this temperature-detecting device also includes electroacoustic light reminding module, is connected with described central processing module, when described
Temperature-detecting device sends information when being in "on" position.
Wherein, described electroacoustic light reminding module includes buzzer and display lamp, described buzzer and display lamp respectively with institute
State power module to connect.
(3) beneficial effect
The technique scheme of the present invention has the advantage that and the invention provides a kind of temperature-detecting device, with the reddest
External spectrum instrument is connected, for the temperature of sample surfaces is carried out on-line measurement and correction, to improve near infrared spectrometer
Accuracy of detection, comprising: temperature collect module, for detecting and gather the temperature data of sample surfaces；Central processing module, uses
In the data received and treatment temperature acquisition module is collected, export result；Display module, with central processing module even
Connect, be used for showing result；Power module, is used for exporting stabling current, for temperature collect module, central processing module and aobvious
Show that module provides electric energy.The temperature-detecting device that the application provides, simple in construction, easy to operate, sample surfaces can be monitored in real time
Temperature, and by coordinating with near infrared spectrometer, staff can be according to the temperature parameter pair shown on display module
The near infrared spectrum testing result of sample is modified, it is ensured that the accuracy of sample spectra information, improves the accurate of spectral measurement
Degree, the impact solving near infrared spectrometer qualitative and quantitative analysis sample temperature in actual applications is had very important by this
Realistic meaning, also has very important reference value to Other Instruments；And the temperature-detecting device practicality that the application provides
By force, it is beneficial to be standardized producing and promoting.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of temperature-detecting device being applicable near infrared spectrometer of the embodiment of the present invention；
Fig. 2 is the peace of the temperature sensor of a kind of temperature-detecting device being applicable near infrared spectrometer of the embodiment of the present invention
Holding position schematic diagram.
In figure: 1: temperature sensor；2: temperature signal regulation circuit；3: central processing module；4: display module；5: power supply
Module；6: buzzer；7: display lamp；20: near-infrared probe.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of not making creative work, broadly falls into the scope of protection of the invention.
As shown in Figure 1 to Figure 2, embodiments provide a kind of temperature-detecting device, coordinate with near infrared spectrometer
Connect, for the temperature of sample surfaces is carried out on-line measurement and correction, to improve the accuracy of detection of near infrared spectrometer, its bag
Include:
Temperature collect module, for detecting and gather the temperature data of sample surfaces；
Central processing module 3, for the data received and treatment temperature acquisition module is collected, exports result；
In the present embodiment, central processing module 3 carries out software programming therein, carries out the signal of telecommunication of temperature collect module transmission
Signal processing is also revised, and obtains the temperature value of sample surfaces；
Display module 4, is connected with central processing module 3, is used for showing that result, result refer to through centre
The temperature value of the sample surfaces after reason module 3 process；
Power module 5, is used for exporting stabling current, carries for temperature collect module, central processing module 3 and display module 4
For electric energy.
Specifically, the temperature-detecting device that the application provides, simple in construction, easy to operate, sample surfaces can be monitored in real time
Temperature, and by coordinating with near infrared spectrometer, staff can be according to the temperature parameter pair shown on display module
The near infrared spectrum testing result of sample is modified, it is ensured that the accuracy of sample spectra information, improves the accurate of spectral measurement
Degree, the impact solving near infrared spectrometer qualitative and quantitative analysis sample temperature in actual applications is had very important by this
Realistic meaning, also has very important reference value to Other Instruments；And the temperature-detecting device practicality that the application provides
By force, it is beneficial to be standardized producing and promoting.
Specifically, temperature collect module includes temperature sensor 1 and temperature signal regulation circuit 2, and temperature sensor 1 is passed through
Temperature signal regulation circuit 2 is connected with central processing module 3；Temperature sensor 1 is located on the test surface of near infrared spectrometer, uses
Temperature in detection sample surfaces.Wherein, temperature sensor 1 can set for the temperature and temperature sensor 1 detecting sample surfaces
Put any position of test surface near infrared spectrometer；Temperature signal regulation circuit 2 is for the electricity of temperature sensor 1
Signal, obtains analog signal voltage value and outputs this to central processing module 3.Further, temperature signal regulation circuit 2 wraps
Including constant-current source circuit, temperature sensor 1 is connected with constant-current source circuit, by arranging constant-current source circuit so that flow through temperature sensing
The current value of device output signal is constant.
Particularly, the quantity of temperature sensor 1 also can be set to multiple, and during measurement, the content that display module shows includes working as
The temperature value of each temperature sensor of front detection and the detection time of correspondence thereof.Can be according to the multiple temperature values on display module
Optimize further, obtain final temperature correction value, to improve the levels of precision of spectral measurement further.
In the present embodiment, the test surface of near infrared spectrometer is provided with temperature sensor 1 and near-infrared probe 20, Qi Zhongwen
Degree sensor 1 is arranged on any position of near-infrared probe 20 test surface, enters sample spectra information near infrared spectrometer
When row is measured, temperature sensor 1 contacts with sample surfaces with near-infrared probe 20 simultaneously, and then temperature sensor 1 detects sample
The temperature on surface.
The temperature calibration formula of reference temperature(TR) sensor 1:
Rt=R0[1+AT+BT2+C(t-100T3)] (1)
In formula: R0For the temperature sensor 1 resistance value at 0 DEG C, R0=100 Ω；T is the temperature value of sample, RTFor temperature
The corresponding resistance value that sensor 1 exports when Current Temperatures.Wherein, parameter A, parameter B, parameter C are constant, and concrete numerical value is as follows
Shown in:
When certainty of measurement requires relatively low, resistance value RTCan be reduced to the functional relationship of temperature T:
Rt=R0(1+AT) (3)
By constant-current source circuit, by constant for the current value flowing through temperature sensor 1 output signal, by voltage, electric current and electricity
Resistance triadic relation formula:
Uout=IRT (4)
In formula, UoutFor flowing through the magnitude of voltage of temperature sensor 1 output signal；I is for flowing through temperature sensor 1 output signal
Current value；Understanding, when electric current is identical, voltage is directly proportional to resistance value, therefore can be turned by the A/D that central processing module 3 is built-in
Change the magnitude of voltage that submodule collects and shift back current suffered temperature value formula onto:
Understanding, the magnitude of voltage of constant-current source circuit output is directly proportional to the temperature of sample surfaces, thus carries out temperature survey.
Specifically, central processing module 3 includes single-chip minimum system and A/D transform subblock, and A/D transform subblock sets
Between temperature signal regulation circuit 2 and single-chip minimum system, A/D transform subblock is for by temperature signal regulation circuit 2
The analog signal voltage value of output is converted to digital signal and passes to single-chip minimum system and be read out, single-chip microcomputer minimum system
Unite and the digital signal read is identified and is converted into the temperature parameter of correspondence, obtain temperature by least square refinement and survey
Value, display module 4 is connected with single-chip minimum system, for displays temperature measured value.In this example it is shown that module 4
The sample surface temperature value that the content of display detects except temperature sensor 1, moreover it is possible to display current sensing time, thinks follow-up
Analyze and more reference data is provided, be beneficial to ensure the accuracy of sample spectra information further and improve spectral measurement
Levels of precision.Specifically, display module 4 includes the LCDs being connected with central processing module 3, and LCDs is used for showing
Show the temperature of the sample surfaces after central processing module 3 processes.Particularly, in the present embodiment, except using liquid crystal display
Outside screen, also can use LED display or other type of display screen.
Further, the temperature-detecting device that the application provides also includes electroacoustic light reminding module, with central processing module 3
Connect, send information when temperature-detecting device is in "on" position；Specifically, electroacoustic light reminding module includes buzzer
6 and display lamp 7, buzzer 6 and display lamp 7 be connected with power module 5 respectively.Wherein, display module 4, buzzer 6 and display lamp
7 are arranged at the non-test surface in outside of near infrared spectrometer, when power module 5 is temperature collect module, central processing module 3
And display module 4 is when providing electric energy, buzzer 6 sends and drips sound, and display lamp 7 can be lighted, and is used to point out staff current
Temperature-detecting device is in "on" position and can detect.
In sum, the invention provides a kind of temperature-detecting device, be connected with near infrared spectrometer, for sample
The temperature on product surface carries out on-line measurement and correction, to improve the accuracy of detection of near infrared spectrometer, comprising: temperature acquisition mould
Block, for detecting and gather the temperature data of sample surfaces；Central processing module, for receiving and treatment temperature acquisition module institute
The data collected, export result；Display module, is connected with central processing module, is used for showing result；Power supply mould
Block, is used for exporting stabling current, provides electric energy for temperature collect module, central processing module and display module.The application provides
Temperature-detecting device, simple in construction, easy to operate, can monitor sample surface temperature in real time, and by with near infrared spectrometer
Coordinating, the near infrared spectrum testing result of sample can be entered by staff according to the temperature parameter shown on display module
Row is revised, it is ensured that the accuracy of sample spectra information, improves the levels of precision of spectral measurement, and this exists to solving near infrared spectrometer
In actual application, the impact of qualitative and quantitative analysis sample temperature has very important realistic meaning, also has Other Instruments non-
The most important reference value；And the temperature-detecting device of the application offer is practical, it is beneficial to be standardized producing and promoting.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although
With reference to previous embodiment, the present invention is described in detail, it will be understood by those within the art that: it still may be used
So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent；
And these amendment or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (7)
1. a temperature-detecting device, is connected with near infrared spectrometer, for surveying the temperature of sample surfaces online
Amount and correction, to improve the accuracy of detection of described near infrared spectrometer, it is characterised in that including:
Temperature collect module, for detecting and gather the temperature data of described sample surfaces；
Central processing module, for receiving and process the data that described temperature collect module is collected, exports result；
Display module, is connected with described central processing module, is used for showing described result；
Power module, is used for exporting stabling current, provides electricity for described temperature collect module, central processing module and display module
Energy.
Temperature-detecting device the most according to claim 1, it is characterised in that: described temperature collect module includes temperature sensing
Device and temperature signal regulation circuit, described temperature sensor is by described temperature signal regulation circuit and described central processing module
Connect；Described temperature sensor is located on the test surface of described near infrared spectrometer, for detecting the temperature of described sample surfaces.
Temperature-detecting device the most according to claim 2, it is characterised in that: described temperature signal regulation circuit includes constant current
Source circuit, described temperature sensor is connected with described constant-current source circuit.
Temperature-detecting device the most according to claim 2, it is characterised in that: described central processing module includes that single-chip microcomputer is
Mini system and A/D transform subblock, described A/D transform subblock is located at described temperature signal regulation circuit and single-chip microcomputer minimum system
Between system, described A/D transform subblock is for being converted to the analog signal voltage value that described temperature signal regulation circuit exports
Digital signal also passes to described single-chip minimum system and is read out, the described single-chip minimum system described numeral to reading
Signal is identified process and obtains measured temperature, and described display module is connected with described single-chip minimum system, is used for showing
Described measured temperature.
Temperature-detecting device the most according to claim 1, it is characterised in that: described display module includes and described centre
The LCDs that reason module connects, described LCDs is for showing the described sample after described central processing module processes
The temperature on product surface.
Temperature-detecting device the most according to claim 1, it is characterised in that: also include electroacoustic light reminding module, with described
Central processing module connects, and sends information when described temperature-detecting device is in "on" position.
Temperature-detecting device the most according to claim 6, it is characterised in that: described electroacoustic light reminding module includes buzzer
And display lamp, described buzzer and display lamp are connected with described power module respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610678062.7A CN106197697A (en) | 2016-08-16 | 2016-08-16 | A kind of temperature-detecting device |
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| CN201610678062.7A CN106197697A (en) | 2016-08-16 | 2016-08-16 | A kind of temperature-detecting device |
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| CN106197697A true CN106197697A (en) | 2016-12-07 |
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| CN201610678062.7A Pending CN106197697A (en) | 2016-08-16 | 2016-08-16 | A kind of temperature-detecting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109100322A (en) * | 2018-08-17 | 2018-12-28 | 江苏大学 | Food near-infrared spectrum rapid detection method and portable detector based on temperature self-correcting |
| CN114234745A (en) * | 2021-12-30 | 2022-03-25 | 无锡盛景微电子股份有限公司 | Ignition resistance temperature detection device and method of electronic detonator |
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| CN109100322A (en) * | 2018-08-17 | 2018-12-28 | 江苏大学 | Food near-infrared spectrum rapid detection method and portable detector based on temperature self-correcting |
| CN114234745A (en) * | 2021-12-30 | 2022-03-25 | 无锡盛景微电子股份有限公司 | Ignition resistance temperature detection device and method of electronic detonator |
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