CN207351581U - Vehicle axles multiple point temperature measurement device based on visible ray and infrared multispectral - Google Patents
Vehicle axles multiple point temperature measurement device based on visible ray and infrared multispectral Download PDFInfo
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- CN207351581U CN207351581U CN201721259453.1U CN201721259453U CN207351581U CN 207351581 U CN207351581 U CN 207351581U CN 201721259453 U CN201721259453 U CN 201721259453U CN 207351581 U CN207351581 U CN 207351581U
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Abstract
The utility model provides a kind of vehicle axles multiple point temperature measurement device based on visible ray and infrared multispectral, including infrared multispectral sensor group, linear array visible light sensor and spectroscopic temperature measurement instrument；The linear array visible light sensor is used to scan the target area treated in vehicle axles where thermometric target point, obtains the visible images of target area；The infrared multispectral sensor group includes multiple infrared multispectral sensors arranged evenly, each infrared multispectral sensor is used for the visible images based on target area and positions the single infrared multispectral radiation intensity data treated the target point of thermometric, and gather the target point；The spectroscopic temperature measurement instrument is used for the infrared multispectral radiation intensity data based on the collection of infrared multispectral sensor group and obtains the temperature of each target point.Visual light imaging under being irradiated by active light source, realizes the real-time positioning of wheel shaft thermometric point target, and passes through infrared multispectral, the high speed non-cpntact measurement of multipoint targets.
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 multiple point temperature measurement device.
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 multiple point temperature measurement device 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 multiple point temperature measurement device, including infrared multispectral
Sensor group, linear array visible light sensor and spectroscopic temperature measurement instrument；
The linear array visible light sensor is used to scan the target area treated in vehicle axles where thermometric target point, obtains
The visible images of target area；
The infrared multispectral sensor group includes multiple infrared multispectral sensors arranged evenly, described each infrared
Multispectral sensor is used for that the visible images positioning based on target area is single to treat the target point of thermometric, and gathers the target point
Infrared multispectral radiation intensity data；
The spectroscopic temperature measurement instrument is used for the infrared multispectral radiation intensity data based on the collection of infrared multispectral sensor group
Obtain the temperature of each target point.
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
Each infrared multispectral sensor and the linear array visible light sensor.
As preference, the multi-core optical fiber includes multichannel single infrared optical fiber and all the way multicore visible ray optical fiber；It is described
An infrared multispectral sensor is connected to per road single infrared optical fiber, the multicore visible ray optical fiber connects the linear array visible ray
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, grating and focus lamp, the collimating mirror connects
Receive and reflect the infra-red radiation of infrared optical fiber transmission, the grating is arranged on the reflected light path of the collimating mirror, the focus lamp
On the reflected light path of the grating, the photosensor arrays are arranged on the reflected light path of the focus lamp, by will be red
The infra-red radiation of infrared optical fiber transmission is divided into multiple spectral measurement passages, each photoelectric transducer element is corresponded to a spectral measurement
Passage.
As preference, further including cabinet, the cabinet is installed at the roadbed position of wheel hub side, described infrared
Multispectral sensor group is integrated in the cabinet, and optical window, the infrared multispectral sensor are provided with the cabinet
Pass through the target point in optical window run-home region.
As preference, the spectral region of the infrared multispectral sensor is 3~15 μm.
The utility model proposes a kind of vehicle axles multiple point temperature measurement device 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, multiple spot
The high speed measurement of target, realizes the high-acruracy survey of motion wheel axle temperature, unknown or become surface suitable for wheel shaft slin emissivity
The non-contact forecasting of emissivity condition, multiple spot regional temperature, overcome existing wheel shaft radiant thermometric technology be limited to it is unknown
Slin emissivity and temperature distributing measuring confinement problems, while use contactless temperature-measuring, solve the prior art
In due to causing service life to shorten because being subject to strong vibration, 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 position, and avoid traditional more camera lenses
The designing scheme being directly connected to multisensor, makes that system design is more simple, structure extension is strong, suitable for the narrow and small sky in scene
Interior radiant thermometric technology 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 shows to be connected according to the infrared multispectral sensor group of the utility model embodiment with linear array visible light sensor
It is intended to；
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 multiple point temperature measurement device based on visible ray and infrared multispectral is shown in figure,
Including infrared multispectral sensor group 6, linear array visible light sensor 8 and spectroscopic temperature measurement instrument；
The linear array visible light sensor 8 is used to scan the target area 3 treated in vehicle axles 1 where thermometric target point 2,
Obtain the visible images of target area 3；
The infrared multispectral sensor group 6 includes multiple infrared multispectral sensors 7 arranged evenly, described each red
Outer multispectral sensor 7 is used for the visible images based on target area 3 and positions the single target point 2 for treating thermometric, and gathers and be somebody's turn to do
The infrared multispectral radiation intensity data of target point 2；
The spectroscopic temperature measurement instrument is used for the infrared multispectral radiation intensity data gathered based on infrared multispectral sensor group 6
Obtain the temperature of each target point 2.
In the present embodiment, cabinet 5 is further included, the cabinet 5 is installed at the roadbed position of 1 side of wheel hub, institute
State infrared multispectral sensor group 6 to be integrated in the cabinet 5, temperature control and power module are additionally provided with the cabinet 5, be infrared
Multispectral sensor group 6 is powered, and the temperature control is additionally operable to 6 temperature of adjustment infrared multispectral sensor group and cabinet with power module
5 temperature.Optical window 4 is installed, the infrared multispectral sensor passes through 4 run-home area of optical window on the cabinet 5
Target point in domain.
In the present embodiment, the infrared multispectral sensor 7 uses thermoelectric cooling, temperature controlling range for 230K~
250K, the cabinet 5 use fan cooling, and temperature controlling range is 293K~323K.
In the present embodiment, the cabinet 5 is installed on the roadbed position of 1 side of wheel hub, infrared multispectral sensor
Group 6 aims at the measured target point 2 in wheel hub 1.Due to being sensed in infrared multispectral sensor group 6 containing an infrared multispectral
Device 7, it is possible to achieve the distributed satellite systems of the measured target point 2 in a wheel hub 1, i.e., each infrared multispectral sensor
7 aim at the single point target on 1 surface of wheel shaft, realize the temperature survey of single point target.
In the present embodiment, the front side of single imaging camera lens 14 is additionally provided with annular visible illumination light source 15, in this implementation
In example, the annular visible illumination light source 15 is used to treat the mesh where thermometric target point 2 by radiation of visible light vehicle axles 1
Region is marked, linear array visible light sensor 8 is measured target area blur-free imaging.The spectrum of annular visible illumination light source 15
Concentrate between visible region, infrared multispectral is measured noiseless.
In the present embodiment, specifically, in the present embodiment, further including single imaging camera lens 14 and multi-core optical fiber；The list
Imaging lens 14 are used for the radiation focal imaging to target point 2, and the multi-core optical fiber is including multicore infrared optical fiber all the way and all the way
Multicore visible ray optical fiber 12；The multicore infrared optical fiber includes multichannel single infrared optical fiber 11, described per road single infrared optical fiber
11 are connected to an infrared multispectral sensor 7, and the multicore visible ray optical fiber 12 connects the linear array visible light sensor 8；It is more
Core fibre is multicore structure, and each fiber cores correspond to individually transmission light path, and multi-core optical fiber one end is integrated interface form, with
Imaging lens connect, the end face for imaging in the multi-core optical fiber of the single imaging camera lens 14, each single infrared optical fiber
11 output interface connects an infrared multispectral sensor 7, described in the output interface connection of the multicore visible ray optical fiber 12
Linear array visible light sensor 8.11 output interface of single infrared optical fiber is connected with infrared multispectral sensor 7, realizes point target spoke
The transmission and measurement penetrated；The output interface of multicore visible ray optical fiber 12 is connected with linear array visible light sensor 8, is realized comprising point mesh
The transmission and measurement of Distributed Area radiation in being marked on.
The measurement method being combined using infrared multispectral measurement with visual light imaging measurement；The infrared spoke of multiple point targets
Penetrate and the visible radiation in region is by single imaging camera lens 14, image in multi-core optical fiber end face, be transmitted to via multi-core optical fiber
Multiple infrared multispectral sensors 7, linear array visible light sensor 8；Using multiple infrared multispectral sensors 7, multiple mesh are obtained
The multispectral radiation intensity of punctuate 2, by radiation temperature measurement algorithm, realizes the measurement of the multiple point target temperature in 1 surface of wheel shaft；Utilize
Linear array visible light sensor 8, obtains comprising target point 2 in the visible radiation of inner region, realizes 1 thermometric target point 2 of wheel shaft
Positioning.
Specifically, as shown in Fig. 2, the single imaging camera lens 14 is equipped with multi-channel optical fibre interface 13, it is described each infrared more
Spectrum sensor 7 is equipped with infrared optical fiber interface 9, and the linear array visible light sensor 8 is equipped with visible ray optical fiber interface 10；It is more
Core fibre is multicore structure, and each fiber cores correspond to individually transmission light path, single infrared optical fiber 11 and multicore visible ray light
The input terminal of fibre 12 is integrated into integrated interface, and as the input interface of multi-core optical fiber, the opposite side of single infrared optical fiber 11 is single
Core fibre output interface；The opposite side of multicore visible ray optical fiber 12 is multi-core optical fiber output interface；Each single-core fiber output connects
Mouth connection infrared optical fiber interface 9, multi-core optical fiber output interface connection visible ray optical fiber interface 10.
Using single imaging camera lens 14, multi-core optical fiber transmission, multiple infrared multispectral sensors 7 and linear array visible light sensor
8 integrated system structures, are transmitted to multiple infrared multispectral sensors 7 via multicore infrared optical fiber, utilize multiple infrared light more
Spectrum sensor 7, obtains the multispectral radiation intensity of multiple point targets respectively, by radiation temperature measurement algorithm, and then obtains multiple points
The temperature of target, using single imaging camera lens 14 and flexible multiconductor optical fiber, realize point target radiation temperature measurement and object space can
Positioned depending on changing, avoid the designing scheme that traditional more camera lenses and multisensor are directly connected to, make that system design is more simple, ties
Structure autgmentability is strong, is realized suitable for the radiant thermometric technology in live small space.
In embodiment, the quantity of infrared multispectral sensor 7 is arranged to 3, but can be not limited to 3.Infrared light more
The spectral region of spectrum sensor 7 is 2~15 μm, is measured suitable for middle low-temp radiating, in embodiment, used infrared light more
The spectral region of spectrum sensor 7 is 3~5 μm.
In the present embodiment, it is infrared as shown in figure 3, the infrared multispectral sensor 7 includes photosensor arrays 19
For multispectral sensor 7 using the photosensor arrays 19 with high speed acquisition, the photosensor arrays 19 are multiple light
The line array sensor of electrical sensor units composition, in the present embodiment, the quantity of photoelectric transducer element is 6, practical application
In, photoelectric transducer element quantity is not limited to 6；The maximum frequency acquisition of photoelectric sensor is not less than 1MHz, meets wheel height
Measurement request under fast motion state.
In the present embodiment, the infrared multispectral sensor 7 further includes collimating mirror 16, grating 17 and focus lamp 18, institute
Collimating mirror 16 is stated in the infra-red radiation light path of the single infrared optical fiber 11 transmission, the grating 17 is arranged on the collimating mirror
On 16 reflected light path, the focus lamp 18 is arranged on the reflected light path of the grating 17, and the photosensor arrays 19 are set
In the reflected light path of the focus lamp 18, multiple spectral measurements are divided into by the infra-red radiation for transmitting single infrared optical fiber 11 and are led to
Road, makes each photoelectric sensor correspond to a spectral measurement passage.
Infrared multispectral sensor 7 includes photosensor arrays 19, and photosensor arrays 19 are by a series of photoelectric transfers
Sensor cell forms, and each sensor unit in array measures an infrared spectrum, the quantity of photoelectric transducer element with it is more
The quantity of spectrum is consistent.
The measurement of infrared multispectral sensor 7 obtains the infrared multispectral radiation intensity data of point target, passes through multispectral spoke
Intensity data processing is penetrated, the temperature of point target can be obtained.
In the present embodiment, by arranging multiple infrared multispectral sensors 7, each infrared multispectral sensor 7 aims at
Single point target on 1 surface of wheel shaft, realizes the temperature survey of single target point 2.
Multiple infrared multispectral sensors 7 correspond to multiple target points 2 on 1 surface of wheel shaft, realize the more of 1 surface of wheel shaft
The distributed satellite systems of a target point 2；Arrangement quantity >=2 of infrared multispectral sensor 7, the i.e. measurement of target point 2
Number >=2.
A kind of vehicle axle temperature measuring method is additionally provided in the present embodiment, as shown in figure 4, including：
Obtain the infrared multispectral radiation data of the multiple target points in vehicle axles surface；
Based on radiation temperature measurement algorithm, the temperature of multiple target points on vehicle axles surface is obtained.
Infrared multispectral measurement refers to the measurement of the infrared multispectral radiation intensity of target point, in the present embodiment, passes through
The infrared multispectral radiation intensity data of target point, with reference to radiation temperature measurement algorithm, calculates the temperature of target point.
Again by multimetering, temperature survey is carried out to multiple target points on vehicle axles surface, passes through each target
The multispectral radiation intensity data of point, calculates the temperature of each target point, so as to obtain multiple target points on vehicle axles surface
Temperature.
As preference, the infrared multispectral radiation data for obtaining the multiple target points in vehicle axles surface specifically includes：
The infra-red radiation information of the multiple target points in vehicle axles surface is obtained, by the infra-red radiation information point of each target point
Into multiple spectral measurement passages, the infrared multispectral radiation intensity data of each target point is obtained；It is divided by prism, grating etc.
Mode, realizes the multispectral radiant intensity measurement of point target, multispectral quantity >=2.
In the present embodiment, based on radiation temperature measurement algorithm, the temperature for obtaining multiple target points on vehicle axles surface is specific
Including：
Based on spectrum under single target point infrared spectral radiant ionization meter signal at multiple wavelengths and corresponding wavelength
Emissivity characterizes function, obtains the temperature of corresponding target point；
Infrared multispectral radiation data based on multiple target points, obtains the temperature of multiple target points.
As preference, based on single target point infrared spectral radiant ionization meter signal at multiple wavelengths and correspondence
Spectral emissivity characterizes function under wavelength, and the temperature for obtaining corresponding target point 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, 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 conclusion filled the utility model proposes a kind of based on the vehicle axles multi-point temperature measurement 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, multipoint targets, realizes the high-acruracy survey of motion wheel axle temperature, unknown suitable for wheel shaft slin emissivity
Or become slin emissivity condition, the non-contact forecasting of multiple spot regional temperature, overcome existing wheel shaft radiant thermometric technology by
It is limited to the confinement problems of unknown slin emissivity and temperature distributing measuring, while uses contactless temperature-measuring, solves
In the prior art due to causing service life to shorten because being subject to strong vibration, easily break down, temperature wrong report the problem of；Profit
With single-lens and flexible multiconductor optical fiber, the visualization for realizing point target radiation temperature measurement and object space positions, and avoids tradition
The designing scheme that is directly connected to of more camera lenses and multisensor, make that system design is more simple, structure extension is strong, suitable for showing
Radiant thermometric technology in the small space of field 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 (7)
1. a kind of vehicle axles multiple point temperature measurement device based on visible ray and infrared multispectral, it is characterised in that including infrared more
Spectrum sensor group, linear array visible light sensor and spectroscopic temperature measurement instrument；
The linear array visible light sensor is used to scan the target area treated in vehicle axles where thermometric target point, obtains target
The visible images in region；
The infrared multispectral sensor group includes multiple infrared multispectral sensors arranged evenly, each infrared light more
Spectrum sensor is used for that the visible images positioning based on target area is single to treat the target point of thermometric, and gathers the red of the target point
Outer multispectral radiation intensity data；
The spectroscopic temperature measurement instrument is used for the infrared multispectral radiation intensity data based on the collection of infrared multispectral sensor group and obtains
The temperature of each target point.
2. the vehicle axles multiple point temperature measurement device 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 described each infrared more respectively
Spectrum sensor and the linear array visible light sensor.
3. the vehicle axles multiple point temperature measurement device according to claim 2 based on visible ray and infrared multispectral, its feature
It is, the multi-core optical fiber includes multichannel single infrared optical fiber and all the way multicore visible ray optical fiber；Every road single infrared light
Fibre is connected to an infrared multispectral sensor, and the multicore visible ray optical fiber connects the linear array visible light sensor.
4. the vehicle axles multiple point temperature measurement device according to claim 2 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.
5. the vehicle axles multiple point temperature measurement device according to claim 4 based on visible ray and infrared multispectral, its feature
It is, the infrared multispectral sensor further includes collimating mirror, grating and focus lamp, and the collimating mirror receives and reflects infrared light
The infra-red radiation of fibre transmission, the grating are arranged on the reflected light path of the collimating mirror, and the focus lamp is arranged on the grating
On reflected light path, the photosensor arrays are arranged on the reflected light path of the focus lamp, red by the way that infrared optical fiber is transmitted
External radiation is divided into multiple spectral measurement passages, each photoelectric transducer element is corresponded to a spectral measurement passage.
6. the vehicle axles multiple point temperature measurement device according to claim 1 based on visible ray and infrared multispectral, its feature
It is, further include cabinet, the cabinet is installed at the roadbed position of wheel hub side, the infrared multispectral sensor group
It is integrated in the cabinet, optical window is installed on the cabinet, the infrared multispectral sensor is taken aim at by optical window
Target point in quasi- target area.
7. the vehicle axles multiple point temperature measurement device according to claim 1 based on visible ray and infrared multispectral, its feature
It is, the spectral region of the infrared multispectral sensor is 3~15 μm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721259453.1U CN207351581U (en) | 2017-09-28 | 2017-09-28 | Vehicle axles multiple point temperature measurement device based on visible ray and infrared multispectral |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721259453.1U CN207351581U (en) | 2017-09-28 | 2017-09-28 | Vehicle axles multiple point temperature measurement device based on visible ray and infrared multispectral |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782453A (en) * | 2017-09-28 | 2018-03-09 | 清华大学 | Vehicle axles multiple point temperature measurement device and method based on visible ray and infrared multispectral |
| CN109632111A (en) * | 2019-01-31 | 2019-04-16 | 中国海洋大学 | A kind of infrared three-dimensional temperature measuring equipment suitable under closed environment |
| CN114088238A (en) * | 2021-11-18 | 2022-02-25 | 中国工程物理研究院流体物理研究所 | Picosecond time resolution impact temperature measurement system and method based on wide radiation spectrum |
-
2017
- 2017-09-28 CN CN201721259453.1U patent/CN207351581U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782453A (en) * | 2017-09-28 | 2018-03-09 | 清华大学 | Vehicle axles multiple point temperature measurement device and method based on visible ray and infrared multispectral |
| CN109632111A (en) * | 2019-01-31 | 2019-04-16 | 中国海洋大学 | A kind of infrared three-dimensional temperature measuring equipment suitable under closed environment |
| CN114088238A (en) * | 2021-11-18 | 2022-02-25 | 中国工程物理研究院流体物理研究所 | Picosecond time resolution impact temperature measurement system and method based on wide radiation spectrum |
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