CN208313470U - A kind of fluorescence method temperature measurement system - Google Patents
A kind of fluorescence method temperature measurement system Download PDFInfo
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- CN208313470U CN208313470U CN201820995052.0U CN201820995052U CN208313470U CN 208313470 U CN208313470 U CN 208313470U CN 201820995052 U CN201820995052 U CN 201820995052U CN 208313470 U CN208313470 U CN 208313470U
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Abstract
The utility model discloses a kind of fluorescence method temperature measurement systems, belong to technical field of temperature measurement, including light path part interconnected and circuit part, circuit part includes the driving circuit for controlling processing unit and being electrically connected respectively with control processing unit, demodulator circuit and information exchange circuit, control processing unit is also connect with power circuit, light path part includes coupling unit, the laser being connect respectively with coupling unit, transmission cable and light-receiving device, the collimation camera lens being connect with transmission cable and the fluorescent target piece being connect with collimation camera lens, laser is connect with driving circuit, light-receiving device is connect with demodulator circuit, it is opposite with fluorescent target piece by the transparent medium including air to collimate camera lens.The utility model separates temperature-sensitive fluorescent target piece with main system, and the exciting light issued by system irradiates fluorescent target piece and acquires the fluorescence progress temperature measurement of fluorescent target piece transmitting, can effectively solve the difficulty of the not permitted arrangement cable in tested field.
Description
Technical field
The utility model relates to a kind of temperature measurement systems to belong to more particularly to a kind of fluorescence method temperature measurement system
Technical field of temperature measurement.
Background technique
Temperature measurement is most important for industries such as electric power, microwave, semiconductor, medical treatment, and with the development of technology, temperature is surveyed
Amount means gradually upgrade, and precision is gradually increased, currently, common temp measuring method has the electrical types such as thermal resistance, thermocouple sensing
The temp measuring methods such as thermometry and infrared measurement of temperature sensing method, the methods of thermal resistance, thermocouple are measured using electronics principle, number
It is also plain conductor according to transmission, this kind of temperature measuring equipment has the characteristics that measurement accuracy is high, but for electric power facility and microwave facilities
Temperature measurement, do not have jamproof ability, especially microwave industry temperature measurement, do not admit of metal class article
It is placed in one；And though IR thermometry is contactless visual thermometry, the measurement of this temp measuring method is body surface
The heat of radiation, it is measuring the result is that heat source large area mean temperature, the temperature of the specific location of measured object can not be reacted, and
Temperature measurement accuracy is lower.
There are also a kind of fiber optic temperature measurement systems to carry out temperature measurement using optical fiber itself or fiber grating pair determinand, this
Class measuring device belongs to contact type measurement, and a fatal shortcoming is needed in cloth cable in position to be measured, and which limits it to make
With range, for this place for not allowing to arrange any cable, these just seem incompetent using the temp measuring system of cable mode
For power.
Utility model content
The main purpose of the utility model is to provide for a kind of fluorescence method temperature measurement system, for solving the prior art
Present in need to arrange cable and the low problem of temperature measurement accuracy, improve temperature-sensitive speed.
The purpose of this utility model can reach by using following technical solution:
A kind of fluorescence method temperature measurement system, including light path part interconnected and circuit part, the circuit part
The driving circuit that be electrically connected including control processing unit and respectively with the control processing unit, demodulator circuit and information exchange are electric
Road, the control processing unit are also connect with power circuit；The light path part include coupling unit, respectively with it is described couple it is single
Laser, transmission cable and the light-receiving device of member connection, the collimation camera lens that is connect with the transmission cable and with the collimation camera lens
The fluorescent target piece of connection；The laser is connect with the driving circuit, and the light-receiving device is connect with the demodulator circuit；It is described
It is opposite with the fluorescent target piece by the transparent medium including air to collimate camera lens.
Preferably, the control processing unit is capable of the laser according to the intensity adjustment of the demodulator circuit signal
Luminous intensity and the dark current for compensating the light-receiving device, the control processing unit controls the folding of the driving circuit, described
Forward direction Function Coupling of the royal purple light beam through the coupling unit that laser issues is into the transmission cable, through the transmission cable
Be transferred into the collimation camera lens.
Preferably, the collimation camera lens, which collimates blue violet light, exports and is irradiated to the fluorescent target on piece, the fluorescent target
Piece by blue violet light excitation and issue red or green one-color fluorescence, one-color fluorescence passes through the coupling through the collimation camera lens
The backward Function Coupling of unit is closed to the light-receiving device.
Preferably, fluorescence signal is converted to electric signal by the light-receiving device, and electric signal demodulates institute through the demodulator circuit
The analog or digital signal that can identify of control processing unit is stated, by the calculating and data processing of the control processing unit,
The temperature computation that the fluorescent target piece perceives is come out.
Preferably, the laser is monochromatic semiconductor laser of the wave-length coverage within the scope of 300-450nm.
Preferably, the coupling unit is with preceding to blue violet light, the reversed optical device for penetrating red-green glow is penetrated, at least
Combination, Amici prism and circulator comprising light splitting piece and lens.
Preferably, the core diameter of the transmission cable is the multimode optical cable no more than 250 μm.
Preferably, the fluorescent target piece is that only sunset glow time fluorescent material relevant to temperature is made.
Preferably, the fluorescent material is the fluorescent material with middle long sunset glow.
Preferably, the collimation camera lens is the optical fiber collimator made of achromatic lens.
The advantageous effects of the utility model:
1, according to the fluorescence method temperature measurement system of the utility model, fluorescence method temperature measurement provided by the utility model system
System, temperature-sensitive fluorescent target piece is separated with main system, and the exciting light issued by system irradiates fluorescent target piece and acquires fluorescence
The fluorescence of target piece transmitting carries out temperature measurement, can effectively solve the difficulty of the not permitted arrangement cable in tested field.
2, according to the fluorescence method temperature measurement system of the utility model, fluorescence method temperature measurement provided by the utility model system
System, by the way of the direct contact measured object of fluorescent target piece, substantially increases the speed of temperature-sensitive.
Detailed description of the invention
Fig. 1 is the schematic diagram according to the fluorescence method temperature measurement system of the utility model；
Fig. 2 is the light path principle figure according to a preferred embodiment of the fluorescence method temperature measurement system of the utility model；
Fig. 3 is the light path principle figure according to another preferred embodiment of the fluorescence method temperature measurement system of the utility model.
In figure: 1- power circuit, 2- control processing unit, 3- driving circuit, 4- demodulator circuit, 5- information exchange circuit,
6- laser, 7- coupling unit, 8- transmission cable, 9- collimate camera lens, 10- fluorescent target piece, 11- light-receiving device.
Specific embodiment
To make the more clear and clear the technical solution of the utility model of those skilled in the art, below with reference to embodiment and
Attached drawing is described in further detail the utility model, and however, the embodiments of the present invention are not limited thereto.
As shown in Figure 1, a kind of fluorescence method temperature measurement system provided in this embodiment, including light path part interconnected
And circuit part, circuit part include controlling processing unit 2 and the driving circuit 3 being electrically connected respectively with control processing unit 2, solution
Circuit 4 and information exchange circuit 5 are adjusted, control processing unit 2 is also connect with power circuit 1；Light path part include coupling unit 7,
The laser 6, transmission cable 8 and the light-receiving device 11 that are connect respectively with coupling unit 7, the collimation camera lens 9 being connect with transmission cable 8 and
The fluorescent target piece 10 being connect with collimation camera lens 9；Laser 6 is connect with driving circuit 3, and light-receiving device 11 is connect with demodulator circuit 4；It is quasi-
Straight camera lens 9 is opposite with fluorescent target piece 10 by the transparent medium including air.
In the present embodiment, as shown in Figure 1, control processing unit 2 can swash according to the intensity adjustment of 4 signal of demodulator circuit
The luminous intensity of light device 6 and the dark current of compensation light-receiving device 11, control processing unit 2 control the folding of driving circuit 3, laser
The forward direction Function Coupling of the 6 coupled units 7 of royal purple light beam issued is transferred into collimation through transmission cable 8 into transmission cable 8
Camera lens 9.
In the present embodiment, as shown in Figure 1, blue violet light is collimated output and is irradiated on fluorescent target piece 10 by collimation camera lens 9,
Fluorescent target piece 10 by blue violet light excitation and issue red or green one-color fluorescence, the collimated camera lens 9 of one-color fluorescence passes through
The backward Function Coupling of coupling unit 7 is to light-receiving device 11, and fluorescence signal is converted to electric signal by light-receiving device 11, and electric signal is demodulated
Circuit 4 demodulates the analog or digital signal that control processing unit 2 can identify, by the calculating and the number that control processing unit 2
According to processing, the temperature computation that fluorescent target piece 10 perceives is come out.
In the present embodiment, as shown in Figure 1, laser 6 is monochromatic semiconductor of the wave-length coverage within the scope of 300-450nm
Laser.
In the present embodiment, as shown in Figure 1, coupling unit 7 is with preceding to through blue violet light, reversely through red-green glow
Optical device, including at least the combination of light splitting piece and lens, Amici prism and circulator.
In the present embodiment, as shown in Figure 1, the core diameter of transmission cable 8 is the multimode optical cable no more than 250 μm.
In the present embodiment, as shown in Figure 1, fluorescent target piece 10 is only sunset glow time fluorescent material production relevant to temperature
It forms, fluorescent material is the fluorescent material with middle long sunset glow.
In the present embodiment, as shown in Figure 1, collimation camera lens 9 is the optical fiber collimator made of achromatic lens.
Embodiment 1:
As shown in Fig. 2, the blue violet light light beam that the laser 6a being driven is issued is through dichroic point in the present embodiment 1
The converging action through coupled lens 7a2 is coupled into transmission cable 8a after mating plate 7a1 reflection, is transmitted to collimation camera lens through transmission cable
9a collimation exports to fluorescent target piece 10a, fluorescent target piece 10a and issues red or green fluorescence, reverse transfer under blue violet light excitation
Fluorescence be collimated camera lens 9a focusing be coupled into transmission cable 8a, through optical cable reverse transfer to coupled lens 7a2, coupled lens
The fluorescence that 7a2 is assembled focuses on the photosurface of photoelectric tube 11a through dichroic light splitting piece 7a1, and photoelectric tube 11a converts optical signal
For electric signal, further handled by subsequent conditioning circuit to calculate the temperature of testee.
Embodiment 2:
As shown in figure 3, the blue violet light that the tail optical fiber laser 6b being driven is issued is through circulator 7b in the present embodiment 2
1. mouth enters 2. mouth and goes out to be transmitted to transmission cable 8b forward direction, and blue violet light is transmitted to collimation camera lens 9b, collimation output by transmission cable 8b
Blue violet light be irradiated on fluorescent target piece 10b, fluorescent target piece 10b issues red or green fluorescence under blue violet light excitation, reversely
The fluorescence of transmission is collimated camera lens 9b focusing and is coupled into transmission cable 8b, and 2. mouth enters 3. mouth and goes out to pass the reverse characteristic through circulator 7b
Tail optical fiber detector 11b is transported to, tail optical fiber detector 11b converts optical signals to electric signal, further handled in terms of by subsequent conditioning circuit
Calculate the temperature of testee.
In the present embodiment, a kind of fluorescence method temperature measurement system provided in this embodiment, working method are as follows: control
Processing unit 2 controls the folding of driving circuit 3, and controls laser 6, the royal purple light beam that laser 6 issues by driving circuit 3
The forward direction Function Coupling of coupled unit 7 is transferred into collimation camera lens 9 into transmission cable 8, through transmission cable 8, collimates camera lens 9
The blue violet light collimation that transmission cable 8 exports is exported and is irradiated on fluorescent target piece 10, fluorescent target piece 10 is swashed by blue violet light
The one-color fluorescence of hair and sending red or green, the inverting function of the collimated camera lens 9 of one-color fluorescence are coupled into transmission cable 8, pass
Cable 8 is lost again by the fluorescence of passback by the backward Function Coupling of coupling unit 7 to light-receiving device 11, light-receiving device 11 is by fluorescence signal
Electric signal is converted to, the demodulated circuit 4 of electric signal demodulates the analog or digital signal that control processing unit 2 can identify, warp
The calculating and data processing for crossing control processing unit 2, the temperature computation that fluorescent target piece 10 perceives is come out, and passes through information exchange electricity
Road 5 swaps the temperature information that the temperature measurement system solves with the external world, completes the measurement of temperature.
In the present embodiment, fluorescence method temperature measurement system provided in this embodiment, its working principles are as follows: the system without
Any cable need to be arranged in measured place, and only need the fluorescent target piece that will be made by the way of mechanical or the mode of stickup
It being fixed on testee, the measurement of temperature can be realized in the alignment lens fluorescent target piece installed at a distance by system, even if
Temperature measurement also can readily be carried out for the object in the space using glass cavity sealing, which, which is able to solve, this does not permit
Perhaps arrange that the temperature of cable occasion measures problem.
In conclusion in the present embodiment, it is provided in this embodiment according to the fluorescence method temperature measurement system of the present embodiment
Fluorescence method temperature measurement system separates temperature-sensitive fluorescent target piece with main system, is irradiated by the exciting light that system issues glimmering
Light target piece and the fluorescence progress temperature measurement for acquiring the transmitting of fluorescent target piece, can effectively solve the not permitted arrangement cable in tested field
It is difficult；By the way of the direct contact measured object of fluorescent target piece, the speed of temperature-sensitive is substantially increased.
The above, only the utility model further embodiment, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art is according to the present utility model in range disclosed in the utility model
Technical solution and its design are subject to equivalent substitution or change, belong to the protection scope of the utility model.
Claims (10)
1. a kind of fluorescence method temperature measurement system, including light path part interconnected and circuit part, which is characterized in that described
Circuit part includes control processing unit (2) and the driving circuit (3) being electrically connected respectively with control processing unit (2), solution
Circuit (4) and information exchange circuit (5), the control processing unit (2) are adjusted also to connect with power circuit (1)；The optical path portion
Divide including coupling unit (7), the laser (6) being connect respectively with the coupling unit (7), transmission cable (8) and light-receiving device
(11), the collimation camera lens (9) being connect with the transmission cable (8) and the fluorescent target piece (10) being connect with collimation camera lens (9)；
The laser (6) connect with the driving circuit (3), and the light-receiving device (11) connect with the demodulator circuit (4)；The standard
Straight camera lens (9) is opposite with the fluorescent target piece (10) by the transparent medium including air.
2. a kind of fluorescence method temperature measurement system according to claim 1, which is characterized in that the control processing unit
(2) luminous intensity of laser (6) according to the intensity adjustment of the demodulator circuit (4) signal and the compensation light
The dark current of device (11), control processing unit (2) control the folding of the driving circuit (3), and the laser (6) issues
Forward direction Function Coupling of the royal purple light beam through the coupling unit (7) into the transmission cable (8), through the transmission cable (8)
Be transferred into the collimation camera lens (9).
3. a kind of fluorescence method temperature measurement system according to claim 2, which is characterized in that the collimation camera lens (9) will
Blue violet light collimation export simultaneously be irradiated on the fluorescent target piece (10), the fluorescent target piece (10) by blue violet light excitation and send out
Red or green one-color fluorescence out, one-color fluorescence is through the described collimation backward function of camera lens (9) by the coupling unit (7)
It is coupled to the light-receiving device (11).
4. a kind of fluorescence method temperature measurement system according to claim 3, which is characterized in that the light-receiving device (11) will be glimmering
Optical signal is converted to electric signal, and electric signal demodulates what control processing unit (2) can identify through the demodulator circuit (4)
Analog or digital signal perceives the fluorescent target piece (10) by the calculating and data processing of control processing unit (2)
Temperature computation come out.
5. a kind of fluorescence method temperature measurement system according to claim 1, which is characterized in that the laser (6) is wave
Monochromatic semiconductor laser of the long range within the scope of 300-450nm.
6. a kind of fluorescence method temperature measurement system according to claim 1, which is characterized in that the coupling unit (7) is
With preceding combination, light splitting rib to through blue violet light, the reversed optical device for penetrating red-green glow, including at least light splitting piece and lens
Mirror and circulator.
7. a kind of fluorescence method temperature measurement system according to claim 1, which is characterized in that the transmission cable (8)
Core diameter is the multimode optical cable no more than 250 μm.
8. a kind of fluorescence method temperature measurement system according to claim 1, which is characterized in that the fluorescent target piece (10) is
Only sunset glow time fluorescent material relevant to temperature is made.
9. a kind of fluorescence method temperature measurement system according to claim 8, which is characterized in that the fluorescent material be with
The fluorescent material of middle long sunset glow.
10. a kind of fluorescence method temperature measurement system according to claim 1, which is characterized in that the collimation camera lens (9) is
The optical fiber collimator made of achromatic lens.
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| CN201820995052.0U CN208313470U (en) | 2018-06-26 | 2018-06-26 | A kind of fluorescence method temperature measurement system |
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| CN201820995052.0U CN208313470U (en) | 2018-06-26 | 2018-06-26 | A kind of fluorescence method temperature measurement system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444613A (en) * | 2018-06-26 | 2018-08-24 | 南京五石金传感技术有限公司 | A kind of fluorescence method temperature measurement system and its measurement method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444613A (en) * | 2018-06-26 | 2018-08-24 | 南京五石金传感技术有限公司 | A kind of fluorescence method temperature measurement system and its measurement method |
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