CN207351582U - Vehicle axles single-point temperature measuring equipment based on visible ray and infrared multispectral - Google Patents
Vehicle axles single-point temperature measuring equipment based on visible ray and infrared multispectral Download PDFInfo
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- CN207351582U CN207351582U CN201721260011.9U CN201721260011U CN207351582U CN 207351582 U CN207351582 U CN 207351582U CN 201721260011 U CN201721260011 U CN 201721260011U CN 207351582 U CN207351582 U CN 207351582U
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Abstract
The utility model provides a kind of vehicle axles single-point temperature measuring equipment based on visible ray and infrared multispectral, and described device includes infrared multispectral sensor, linear array visible light sensor and spectroscopic temperature measurement instrument；The linear array visible light sensor, which is used to scanning vehicle axles surface, treats target area where thermometric target point, obtains the visible images of target area；Thermometric target point is treated in visible images positioning of the infrared multispectral sensor based on target area, and gathers the infrared multispectral radiation intensity data of target point；The spectroscopic temperature measurement instrument is used to infrared multispectral radiation intensity data is handled to obtain the temperature of target point.The measurement method being combined using infrared multispectral measurement with visual light imaging measurement；By the measurement of the infrared multispectral radiation intensity of target, the measurement of wheel shaft superficial objects point temperature is realized；Visual light imaging under being irradiated by active light source, realizes the real-time positioning of wheel shaft thermometric target point.
Description
Technical field
Vehicle axle temperature field of measuring technique is the utility model is related to, more particularly, to a kind of based on visible ray and infrared
Multispectral vehicle axles single-point temperature measuring equipment.
Background technology
Urban track traffic is the backbone of urban public transport, is the lifeline engineering in city.China's city rail is handed over
Logical development is quick, and by 2016, the whole nation shared 30 cities and opens rail line.Passenger Flow in Urban Rail Transit is big,
Personnel concentrate, and consequence caused by breaking down and influence will be extremely serious.The operation security of urban track traffic is that city is public
Safety pith, rail transportation operation mileage increase substantially and passenger flow increase, brought safely to rail transportation operation
Enormous pressure, this will also propose the essential safety of urban track traffic operating facilities and facility the standard requirement of higher.
The vehicle of track traffic is the core equipment of operation, and in the process of running, bearing produces heat due to friction to vehicle
Amount, when Bearing inner failure, can aggravate friction, bearing temperature jumps, and forms hot axis, causes to cut axis when serious, makes fortune
Vehicle in row has the danger overturned, and operation driving will be given to bring potential substantial risk.To prevent axle temperature is excessive from leading
Serious accident is caused, the on-line measurement of vehicle axle temperature will be very important, dynamic monitoring vehicle bearing temperature, to realize heat
Axle temperature degree tracks and forecast.
The temperature transducer being commonly used includes two classes, and one kind is the temperature transducers of the domestic semiconductor thermometric used
Device, another kind of is the temperature fuse used by foreign countries in EMU is introduced.The wherein temperature sensor of semiconductor thermal detector
The advantages of be that can obtain temperature value, host is transferred to by serial communication mode, so as to fulfill real-time temperature data acquisition,
Observed easy to vehicle management personnel, grasp reference data of the wheel bearing in normal operation, additionally it is possible to become by bearing temperature
Change curve to judge the initial failure hidden danger of vehicle bearing；But shortcoming be due to thermal detector principle complexity, exist easily break down,
Temperature reports equivalent risk by mistake；And temperature fuse is after vehicle axle temperature reaches design temperature, melt its solution by heat, from
And the control circuit of vehicle is disconnected, its shortcoming is then bearing temperature value when cannot show normal operation, vehicle management personnel
The operating status of bearing can not be understood in real time, and temperature fuse, once fusing, whole vehicle will be out of service, will lead
Cause huge economic loss.
Further, since in vehicle operation, wheel bearing position can be subject to very strong vibration, and whether semiconductor is surveyed
The shaft temperature sensor of temperature, or temperature fuse, internal electric elements all can cause to use the longevity because being subject to strong vibration
Life shortens, and jeopardizes the traffic safety of vehicle, also increases the operation expense of locomotive.
Utility model content
A kind of one kind for overcoming the above problem or solving the above problems at least in part of the utility model offer is based on can
See the vehicle axles single-point temperature measuring equipment of light and infrared multispectral, solve in the prior art due to because being subject to strong vibration and
Cause service life shorten, easily break down, temperature wrong report the problem of.
One side according to the present utility model, there is provided a kind of vehicle axles single-point temperature measuring equipment, including infrared multispectral
Sensor, linear array visible light sensor and spectroscopic temperature measurement instrument；
The linear array visible light sensor, which is used to scanning vehicle axles surface, to be treated target area where thermometric target point, to obtain
Obtain the visible images of target area；
Thermometric target point is treated in visible images positioning of the infrared multispectral sensor based on target area, and gathers mesh
The infrared multispectral radiation intensity data of punctuate；
The spectroscopic temperature measurement instrument is used to infrared multispectral radiation intensity data is handled to obtain the temperature of target point.
As preference, cabinet is further included, the infrared multispectral sensor, linear array visible light sensor, spectroscopic temperature measurement
Instrument is arranged in the cabinet, and the cabinet is installed at the roadbed position of wheel hub side.
As preference, further include single imaging camera lens and multi-core optical fiber；The single imaging camera lens gathers the infrared of target point
The visible ray of radiation and target area simultaneously images in the end face of the multi-core optical fiber, and the output terminal of the multi-core optical fiber connects respectively
The infrared multispectral sensor and the linear array visible light sensor.
As preference, the input port of the multi-core optical fiber is integrated interface, output port is double nip, including single
Optical fiber output interface and multi-core optical fiber output interface；The single-core fiber output interface connects the infrared multispectral sensor,
The multi-core optical fiber output interface connects the linear array visible light sensor.
As preference, the infrared multispectral sensor includes photosensor arrays, the photosensor arrays
For the line array sensor of multiple photoelectric transducer elements composition, the frequency acquisition of each photoelectric sensor is not less than 1MHz.
As preference, the infrared multispectral sensor further includes collimating mirror, prism and focus lamp, the collimating mirror connects
Receive and reflect the infra-red radiation of single-core fiber output interface input, the prism is arranged on the reflected light path of the collimating mirror, institute
Focus lamp is stated in the refractive light paths of the prism, the photosensor arrays are arranged on the reflected light path of the focus lamp,
Multiple spectral measurement passages are divided into by the infra-red radiation for inputting single-core fiber output interface, make each photoelectric transducer element
A corresponding spectral measurement passage.
As preference, the spectral region of the infrared multispectral sensor is 3~15 μm.
The utility model proposes a kind of vehicle axles single-point temperature measuring equipment based on visible ray and infrared multispectral, pass through master
Visual light imaging under dynamic light source irradiation, realizes the real-time positioning of wheel shaft thermometric point target, while passes through infrared multispectral, target
The high speed measurement of point, realizes the high-acruracy survey of motion wheel axle temperature, unknown or become surface hair suitable for wheel shaft slin emissivity
Penetrate the non-contact forecasting of the target point temperature under the conditions of rate, overcome existing wheel shaft radiant thermometric technology be limited to it is unknown
Slin emissivity and the confinement problems for being difficult to accurate positionin measurement, while contactless temperature-measuring is used, solve existing skill
In art due to causing service life to shorten because being subject to strong vibration, easily break down, temperature wrong report the problem of；Utilize single mirror
Head and flexible multiconductor optical fiber, the visualization for realizing point target radiation temperature measurement and object space position, and avoid traditional more mirrors
The designing scheme that is directly connected to multisensor of head, makes that system design is more simple, structure extension is strong, suitable for live narrow and small
Radiant thermometric technology in space is realized.
Brief description of the drawings
Fig. 1 is the vehicle axle temperature measuring device structure diagram according to the utility model embodiment；
Fig. 2 is the measurement sensor structure diagram according to the utility model embodiment；
Fig. 3 is the infrared multispectral sensor construction schematic diagram according to the utility model embodiment；
Fig. 4 is the vehicle axle temperature measuring method flow diagram according to the utility model embodiment.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not intended to limit the scope of the present invention.
As shown in Figure 1, a kind of vehicle axles single-point temperature measuring equipment is shown in figure, including infrared multispectral sensor 6, line
Battle array visible light sensor 7 and spectroscopic temperature measurement instrument；
The linear array visible light sensor 7 is used to scan the target area that the place of thermometric target point 2 is treated on 1 surface of vehicle axles
Domain, obtains the visible images of target area；
Thermometric target point 2 is treated in visible images positioning of the infrared multispectral sensor 6 based on target area, and is gathered
The infrared multispectral radiation intensity data of target point 2；
In the present embodiment, visible illumination light source 4 is further included, the visible illumination light source 4 is used to pass through visible ray
Irradiation vehicle axles 1 treat the target area where thermometric target point 2, enable linear array visible light sensor 7 clear to target area
Imaging measurement.The spectrum of visible illumination light source 4 is concentrated between visible region, infrared multispectral is measured noiseless.
The spectroscopic temperature measurement instrument is used to infrared multispectral radiation intensity data is handled to obtain the temperature of target point 2.Using
The measurement method that infrared multispectral measurement is combined with visual light imaging measurement；Pass through the infrared multispectral radiation intensity of target
Measurement, realizes the measurement of 1 superficial objects point of wheel shaft, 2 temperature；Visual light imaging under being irradiated by active light source, realizes wheel shaft 1
The real-time positioning of thermometric target point 2.
In the present embodiment, cabinet 5 is further included, it is the infrared multispectral sensor 6, linear array visible light sensor 7, visible
Radiant 4, spectroscopic temperature measurement instrument are arranged in the cabinet 5, and the cabinet 5 is installed at the roadbed position of 1 side of wheel hub.
Shown in Fig. 1, the spectral region of infrared multispectral sensor 6 can be 2~15 μm, in embodiment, used
The spectral region of infrared multispectral sensor 6 is 8~13 μm.
In the present embodiment, single imaging camera lens 13, infrared multispectral sensor 6 and the composition of linear array visible light sensor 7 are surveyed
Quantity sensor 3, infrared multispectral radiation intensity data and visual light imaging information for measuring target point 2.
In the present embodiment, specifically, in the present embodiment, further including single imaging camera lens 13 and multi-core optical fiber；The list
Imaging lens 13 are used for the radiation focal imaging to target point 2, and the input interface of the multi-core optical fiber is integrated input interface, defeated
Outgoing interface is double nip, and the double nip includes single-core fiber output interface and all the way multi-core optical fiber output interface all the way；It is described
Input interface connection single imaging camera lens 13, the end face for imaging in the multi-core optical fiber of the single imaging camera lens 13, the single
Optical fiber output interface connects the infrared multispectral sensor 6, and the multi-core optical fiber output interface connects the linear array visible ray
Sensor 7.Single-core fiber output interface is connected with infrared multispectral sensor 6, realizes the transmission and survey of point target infra-red radiation
Amount；Multi-core optical fiber output interface is connected with linear array visible light sensor 7, is realized visible comprising the Distributed Area including point target
The transmission and measurement of light radiation.
The measurement method being combined using infrared multispectral measurement with visual light imaging measurement；The infra-red radiation of point target with
And the visible radiation in region is imaged in multi-core optical fiber end face, is transmitted to via multi-core optical fiber infrared by single imaging camera lens 13
Multispectral sensor 6, linear array visible light sensor 7；Using infrared multispectral sensor 6, the multispectral radiation of target point 2 is obtained
Intensity, by radiation temperature measurement algorithm, realizes the measurement of wheel shaft surface point target temperature；Using linear array visible light sensor 7, obtain
Comprising target point 2 in the visible radiation of inner region, the positioning of wheel shaft thermometric target point 2 is realized.
Specifically, as shown in Fig. 2, the single imaging camera lens 13 is equipped with multi-channel optical fibre interface 12, the infrared multispectral
Sensor 6 is equipped with infrared optical fiber interface 8, and the linear array visible light sensor 7 is equipped with visible ray optical fiber interface 9；Multi-core optical
Fibre is multicore structure, and each fiber cores correspond to individually transmission light path, it is visible with multicore to specifically include single infrared optical fiber 10
Light optical fiber 11, the single imaging camera lens 13 connects infrared multispectral sensor 6 by single infrared optical fiber 10, visible by multicore
Light optical fiber 11 connects linear array can be by optical sensor；The input terminal of single infrared optical fiber 10 and multicore visible ray optical fiber 11 is integrated into
Into interface, as input interface, the opposite side of single infrared optical fiber 10 is single-core fiber output interface；Multicore visible ray optical fiber 11
Opposite side be multi-core optical fiber output interface；Single-core fiber output interface connection infrared optical fiber interface 8, multi-core optical fiber output interface
Connect visible ray optical fiber interface 9.
It is integrated using single imaging camera lens, multi-core optical fiber transmission, infrared multispectral sensor 6 and linear array visible light sensor 7
System structure, using single-lens and flexible multiconductor optical fiber, the visualization for realizing point target radiation temperature measurement and object space is determined
Position, avoids the designing scheme that traditional more camera lenses and multisensor are directly connected to, and makes that system design is more simple, structure extension
Property it is strong, suitable in live small space radiant thermometric technology realize.
Specifically, as shown in figure 3, the infrared multispectral sensor 6 includes photosensor arrays 17, infrared multispectral
For sensor 6 using the photosensor arrays 17 with high speed acquisition, the photosensor arrays 17 are multiple photoelectric sensings
The line array sensor of device unit composition, in the present embodiment, the quantity of photoelectric transducer element is 10, in practical application, light
Electrical sensor units quantity is not limited to 10；The maximum frequency acquisition of photoelectric sensor is not less than 1MHz, meets that wheel is transported at a high speed
Measurement request under dynamic state.
In the present embodiment, as shown in figure 3, the infrared multispectral sensor 6 further includes collimating mirror 14, prism 15 and gathers
Burnt mirror 16, the transmitting incident of the measured target point 2 in wheel hub 1 to single imaging camera lens 13, after being transmitted by optical fiber 10
Collimated mirror 14, projects on the plane of incidence on prism 15, after 15 dispersion of prism light splitting, the infra-red radiation warp of different wave length
By the exit plane of prism 15, project on focus lamp 16, after line focus, the infra-red radiation of different wave length incides photoelectric sensing
Different sensors unit on device array 17, each photoelectric sensor correspond to a spectral measurement passage, that is, form light more
Spectrometry, in the present embodiment, the quantity of spectrum channel is 10.The measurement of infrared multispectral sensor 6 obtains the infrared of target point 2
Multispectral radiation intensity data, is handled by multispectral radiation intensity data, can obtain the temperature of target point 2.
In the present embodiment, realize that visible images measure using linear array visible light sensor 7.In the present embodiment, line
Linear CCD sensor can be selected in battle array visible light sensor 7.Quilt in the optical field of view covering wheel hub 1 of linear CCD sensor
The region of target point 2 is surveyed, i.e. the field of view of infrared multispectral sensor 6 falls the field of view in linear array visible light sensor 7
Within.During wheel movement, due to the relative motion that the traveling of wheel is produced with line array sensor, linear CCD sensor
The visible images of scanning area can be obtained.
In the present embodiment, linear CCD sensor works asynchronously with infrared multispectral sensor 6, can obtain mesh at the same time
Mark the visible images of temperature and target area.Linear CCD sensor works asynchronously with visible illumination light source 4, in this reality
Apply in example, it is seen that optical illumination light source 4 selects LED light source, and LED light source irradiates the measured target region in wheel hub 1, makes linear array
Ccd sensor can measure target area blur-free imaging, and noiseless to infrared multispectral actinometry, and then be moved realizing
While the high-precision actinometry of the temperature of axletree 1, can also visual light imaging positioning be carried out to measured zone.
A kind of vehicle axles single-point temp measuring method is additionally provided in the present embodiment, as shown in figure 4, including：
Obtain the infrared multispectral radiation data of vehicle axles superficial objects point；
Based on radiation temperature measurement algorithm, the temperature of the target point on vehicle axles surface is obtained.
In the present embodiment, the infrared multispectral radiation data for obtaining vehicle axles superficial objects point specifically includes：
The infra-red radiation information of vehicle axles superficial objects point is obtained, and light-splitting processing forms multiple spectral measurement passages,
Obtain the infrared multispectral radiation intensity data of target point.
In the present embodiment, based on radiation temperature measurement algorithm, the temperature for obtaining the target point on vehicle axles surface specifically includes：
Effective spectral radiance, target optical spectrum emissivity function and right based on the output of each spectral measurement channel measurement
The blackbody spectrum radiation intensity distribution function of wavelength is answered, obtains the measuring signal side of the infrared spectral radiant intensity under multiple wavelength
Journey group；
Data are launched based on the target optical spectrum under different temperatures, wavelength, obtain spectral emissivity function；
Based on spectral emissivity function, the infrared spectral radiant ionization meter signal equation group closing under multiple wavelength is asked
Solution, obtains the temperature of the target point.
Specifically, obtaining the infra-red radiation information of vehicle axles superficial objects point, the infra-red radiation of each target point is believed
Breath is divided into multiple spectral measurement passages, obtains the infrared multispectral radiation intensity data of each target point；Pass through prism, grating etc.
Spectroscopic modes, realize the multispectral radiant intensity measurement of target point, multispectral quantity >=2.
Specifically, the basic principle of radiation temperature measurement algorithm is as follows.
The measuring signal of infrared spectral radiant intensity under N number of wavelength is expressed as：
Vi=εiIb(λi, T), i=1 .., N
Wherein, T is target temperature, is unknown quantity；N is the quantity of the spectral wavelength of multispectral survey, is known quantity；λiIt is
The measurement wavelength of i-th of spectral measurement passage, is known quantity；ViBe i-th spectral measurement passage measurement output it is effective
Spectral radiance, to measure known quantity；εiRepresent that (i.e. wavelength is λ in i-th of spectral measurement passagei) target optical spectrum transmitting
Rate, is unknown quantity；Ib(λi, T) represent in temperature T, wavelength λiWhen blackbody spectrum radiation intensity distribution function, be temperature T,
Wavelength XiFunction, be dependent unknown quantity, can be considered the physical quantity determined by temperature T.From above formula, in measurement equation
In group, spectral radiance known to shared N number of measurement, correspond to 1 unknown temperatures and N number of unknown emissivity.
The non-intellectual of wheel shaft surface spectrum emissivity is the key influence factor that radiation temperature accurately measures, and this patent uses
Spectral emissivity function characterizes, and the mode of the advance data of spectral emissivity, to realize high-precision temperature survey.
Spectral emissivity can use the relevant simple mathematical function of wavelength to describe, such as linear function, exponential function, multinomial
Formula function etc..Wherein, it is common spectral emissivity characterization function to have two-parameter exponential function, such as：
ε=exp (a+b λ)
Wherein (a, b) is two undetermined parameters in above-mentioned spectral emissivity function.
Undetermined parameter in emissivity function is required unknown quantity, and the undetermined parameter number in emissivity function should not
More than N-1.Based on measurement equation group and spectral emissivity function, multispectral radiant intensity measurement equation group meets that mathematics closing is asked
Solution condition, passes through the optimization algorithms such as least square method, it is possible to achieve the solution of temperature.
Emissivity function is to ensure the necessary condition that equation group temperature solves, to improve temperature solving precision, using transmitting
Rate measurement experiment platform, measures the target optical spectrum emissivity data under different temperatures, wavelength in advance.Emissivity measurement experimental bench,
Defined based on emissivity, black matrix comparison method or Kirchhoff's law can be used, measure emissivity.Although known spectra emissivity
Data, but during wheel shaft long-play, sample surfaces state can change, and cause under mutually synthermal, wavelength condition
Backs and the emissivity data that measure in advance there may be certain deviation, but the deviation amplitude is limited, and not shadow
The regularity of distribution of spectral emissivity is rung, therefore the emissivity data measured in advance are assigned to certain change boundary, such as ±
50%, as the constraints of above-mentioned multispectral radiation intensity solving equations, surveyed with improving the radiation based on emissivity function
Warm precision.Above-mentioned is the basic principle of wheel shaft surface multispectral thermometry algorithm.
In the present embodiment, vehicle axle temperature measuring method further includes：
Visual light imaging based on target area, positions vehicle axles thermometric target point in real time.
Realize that visible images measure using linear array visible light sensor.In the present embodiment, linear array visible light sensor
Linear CCD sensor can be selected.The region of measured target point in the optical field of view covering wheel hub of linear CCD sensor,
That is the field of view of infrared multispectral sensor falls within the field of view of linear array visible light sensor.In wheel movement process
In, due to the relative motion that traveling and the line array sensor of wheel produce, what linear CCD sensor can obtain scanning area can
See light image.
Linear CCD sensor works asynchronously with infrared multispectral sensor, can obtain target temperature and target at the same time
The visible images in region.Linear CCD sensor works with visible illumination light source synchronous, in the present embodiment, it is seen that illumination
LED light source is selected in Mingguang City source, and LED light source irradiates the measured target region in wheel hub, enables linear CCD sensor to target
Region blur-free imaging measurement, and it is noiseless to infrared multispectral actinometry, and then in the high accuracy for realizing motion wheel axle temperature
While actinometry, can also visual light imaging positioning be carried out to measured zone.
In conclusion filled the utility model proposes a kind of based on the vehicle axles single-point thermometric of visible ray and infrared multispectral
Put, the visual light imaging under being irradiated by active light source, realize the real-time positioning of wheel shaft thermometric point target, while by infrared more
The high speed measurement of spectrum, target point, realizes the high-acruracy survey of motion wheel axle temperature, suitable for wheel shaft slin emissivity it is unknown or
The non-contact forecasting of target point temperature under the conditions of change slin emissivity, overcomes existing wheel shaft radiant thermometric technology and is limited
In unknown slin emissivity and it is difficult to the confinement problems that measurement is accurately positioned, while uses contactless temperature-measuring, solves
In the prior art due to because being subject to strong vibration causing service life to shorten, easily break down, temperature wrong report the problem of；
Using single-lens and flexible multiconductor optical fiber, the visualization for realizing point target radiation temperature measurement and object space positions, and avoids biography
The designing scheme that more camera lenses and the multisensor of system are directly connected to, makes that system design is more simple, structure extension is strong, is suitable for
Radiant thermometric technology in live small space is realized.
Finally, the method for the utility model is only preferable embodiment, is not intended to limit the protection of the utility model
Scope.Where within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on, should be included in
Within the scope of protection of the utility model.
Claims (6)
1. a kind of vehicle axles single-point temperature measuring equipment based on visible ray and infrared multispectral, it is characterised in that including infrared more
Spectrum sensor, linear array visible light sensor and spectroscopic temperature measurement instrument；
The linear array visible light sensor, which is used to scanning vehicle axles surface, treats target area where thermometric target point, obtains mesh
Mark the visible images in region；
Thermometric target point is treated in visible images positioning of the infrared multispectral sensor based on target area, and gathers target point
Infrared multispectral radiation intensity data；
The spectroscopic temperature measurement instrument is used to infrared multispectral radiation intensity data is handled to obtain the temperature of target point.
2. the vehicle axles single-point temperature measuring equipment according to claim 1 based on visible ray and infrared multispectral, its feature
It is, further include cabinet, the infrared multispectral sensor, linear array visible light sensor, spectroscopic temperature measurement instrument are arranged on the cabinet
Interior, the cabinet is installed at the roadbed position of wheel hub side.
3. the vehicle axles single-point temperature measuring equipment according to claim 1 based on visible ray and infrared multispectral, its feature
It is, further includes single imaging camera lens and multi-core optical fiber；The infra-red radiation of the single imaging camera lens collection target point and target area
Visible ray and image in the end face of the multi-core optical fiber, the output terminal of the multi-core optical fiber connects the infrared multispectral respectively
Sensor and the linear array visible light sensor.
4. the vehicle axles single-point temperature measuring equipment according to claim 3 based on visible ray and infrared multispectral, its feature
Be, the input port of the multi-core optical fiber is integrated interface, and output port is double nip, including single-core fiber output interface and
Multi-core optical fiber output interface；The single-core fiber output interface connects the infrared multispectral sensor, and the multi-core optical fiber is defeated
Outgoing interface connects the linear array visible light sensor.
5. the vehicle axles single-point temperature measuring equipment according to claim 3 based on visible ray and infrared multispectral, its feature
It is, the infrared multispectral sensor includes photosensor arrays, and the photosensor arrays are multiple photoelectric sensings
The line array sensor of device unit composition, the frequency acquisition of each photoelectric sensor are not less than 1MHz.
6. the vehicle axles single-point temperature measuring equipment according to claim 5 based on visible ray and infrared multispectral, its feature
It is, the infrared multispectral sensor further includes collimating mirror, prism and focus lamp, and the collimating mirror receives and reflects single light
The infra-red radiation of fine output interface input, the prism are arranged on the reflected light path of the collimating mirror, and the focus lamp is arranged on institute
State in the refractive light paths of prism, the photosensor arrays are arranged on the reflected light path of the focus lamp, by by single-core fiber
The infra-red radiation of output interface input is divided into multiple spectral measurement passages, each photoelectric transducer element is corresponded to a spectrum and surveys
Measure passage.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107560753A (en) * | 2017-09-28 | 2018-01-09 | 清华大学 | Vehicle axles single-point temperature measuring equipment and method based on visible ray and infrared multispectral |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560753A (en) * | 2017-09-28 | 2018-01-09 | 清华大学 | Vehicle axles single-point temperature measuring equipment and method based on visible ray and infrared multispectral |
| CN107560753B (en) * | 2017-09-28 | 2024-01-09 | 清华大学 | Vehicle wheel axle single-point temperature measuring device and method based on visible light and infrared multispectral |
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