CN209416498U - Double color infrared ray device - Google Patents
Double color infrared ray device Download PDFInfo
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- CN209416498U CN209416498U CN201822124349.2U CN201822124349U CN209416498U CN 209416498 U CN209416498 U CN 209416498U CN 201822124349 U CN201822124349 U CN 201822124349U CN 209416498 U CN209416498 U CN 209416498U
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Abstract
The utility model provides a kind of double color infrared ray device, belongs to infrared measurement of temperature field, solves the problems, such as that current device measured temperature accuracy is not high.Object lens knob and shell one end connect, object lens are mounted in object lens knob, first optical filter and the second optical filter are oppositely arranged with object lens, first detector and the second detector are oppositely arranged with the first optical filter and the second optical filter respectively, third detector is set to below the second detector, first and third detector signal output end respectively with the first and second signal input part of calculus of differences module connect, second and third detector signal output end respectively with the third and fourth signal input part of calculus of differences module connect, calculus of differences module by signal output end and AD conversion module signal input part connect, AD conversion module signal output end and the first signal input part of micro treatment module connect, micro treatment module signal output end and monitor signal input terminal connect, eyepiece and display are set to the shell other end, power supply and communication cable interface are set to housing bottom surface.
Description
Technical field
The utility model relates to infrared temperature-test technology field more particularly to a kind of double color infrared ray devices.
Background technique
With the continuous improvement of power industry automatization level, thermometric becomes important and indispensable in power industry production
Key technology.It in actual production, is produced in strict accordance with the good temperature of theory setting, tracking adjusts product in production process
Temperature, helping to improve yield and reduces cost.This requires with ideal thermometry, and thermometry is practical
Technique mostly requirement must have the special feature that be it is contactless, response is fast, stability is good and the service life is grown etc..Previous infrared measurement of temperature
It is mostly the simple infrared emanation by a certain wave band of object to measure body surface temperature, measurement result is often not achieved
Measurement effect.The problem of in order to more accurately measure high temp objects surface, new development play a kind of double color infrared ray technology.
Existing double color infrared ray device often uses optical filter that infrared energy is divided into two adjacent bands, then
The energy that two wave bands are received by two independent detectors, finally determines object according to the ratio of two wave band energy
Temperature.However, be received by a detector because some interference glistening lights of waves may also pass through optical filter, lead to measured temperature
The accuracy of degree is not high.
Summary of the invention
The purpose of this utility model is that the accuracy of temperature measured by the current double color infrared ray device of solution is not high
The technical issues of, a kind of double color infrared ray device is provided.
In order to solve the above technical problems, the technical solution adopted in the utility model is:
A kind of double color infrared ray device comprising object lens, object lens knob, shell, the first optical filter, the second optical filter,
First detector, the second detector, third detector, display, eyepiece, power supply and communication cable interface, power module and temperature
Computing device is spent, the temperature computing device includes calculus of differences module, AD conversion module and micro treatment module, in which: described
The connection of the threaded one end of object lens knob and shell, object lens are mounted in object lens knob, the first optical filter, the second optical filter, first
Detector, the second detector, third detector and temperature computing device are set in the inner cavity of shell, the first optical filter and second
Optical filter and object lens are oppositely arranged and the first optical filter is located above the second optical filter, the first optical filter and the screening of the second optical filter
The wavelength of infrared light out is different, the first detector and the second detector respectively with the first optical filter and the second optical filter is opposite sets
It sets, third detector is set to below the second detector, the signal output end of the first detector and the signal of third detector
Output end is connect with the first signal input part of calculus of differences module and second signal input terminal respectively, the signal of the second detector
The signal output end of output end and third detector is defeated with the third signal input part of calculus of differences module and fourth signal respectively
Enter end connection, the signal output end of calculus of differences module and the signal input part of AD conversion module connect, the letter of AD conversion module
First signal input part of number output end and micro treatment module connects, the signal output end of micro treatment module and the signal of display
Input terminal connection, eyepiece are set to the middle part of the shell other end, and display is set to the top of the shell other end, power supply and communication
Cable interface is set on the bottom surface of shell, and one end of the power supply line in power supply and communication cable interface and calculus of differences module
Power input, the power input of AD conversion module, the power input of micro treatment module and display power input
End is all connected with, and power supply is connect with the other end of the power supply line in communication cable interface with power module, and power supply connects with communication cable
Communication line in mouthful is used to connect with external devices.
Optionally, the temperature computing device further includes input module, the signal output end and Wei Chu of the input module
Manage the second signal input terminal connection of module.
Optionally, the double color infrared ray device further includes fastening nut and bracket, and bracket is fixed by fastening nut
In object lens knob periphery.
Optionally, the calculus of differences module include resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6,
Resistance R7, resistance R8, capacitor C1, capacitor C2, capacitor C3, capacitor C4, operational amplifier U2A, resistance R9, resistance R10, resistance
R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, capacitor C5, capacitor C6, capacitor C7, capacitor C8 and operation
Amplifier U2B, AD conversion module include AD conversion chip U3, and micro treatment module includes micro-chip processor U1, and display includes core
Piece LCD1, in which: one end of resistance R1 is connect with the signal output end of the first detector, and the other end of resistance R1 is with resistance R3's
One end and one end of capacitor C1 are all connected with, the other end ground connection of capacitor C1, the other end of resistance R3 and one end, the resistance of resistance R5
One end of R6 and one end of capacitor C2 are all connected with, and the other end ground connection of capacitor C2, the other end of resistance R6 is calculus of differences module
Power input, the other end of resistance R5 connect with the non-inverting input terminal of operational amplifier U2A；One end of resistance R2 and third
The signal output end of detector connects, and the other end of resistance R2 and one end of one end of resistance R4 and capacitor C3 are all connected with, capacitor
The other end of C3 is grounded, and the other end and one end of resistance R7, one end of capacitor C4, one end of resistance R8 and the operation of resistance R4 is put
The inverting input terminal of big device U2A is all connected with, and the other end of capacitor C4 and the other end of resistance R7 are grounded, the other end of resistance R8
It is connect with the output end of operational amplifier U2A；One end of resistance R9 is connect with the signal output end of the second detector, resistance R9's
The other end is all connected with one end of resistance R11 and one end of capacitor C5, the other end ground connection of capacitor C5, the other end of resistance R11
It is all connected with one end of one end of resistance R13, one end of resistance R14 and capacitor C6, the other end ground connection of capacitor C6, resistance R14
The other end be calculus of differences module power input, the non-inverting input terminal of the other end of resistance R13 and operational amplifier U2B
Connection；One end of resistance R10 is connect with the signal output end of third detector, the other end of resistance R10 and one end of resistance R12
It is all connected with one end of capacitor C7, the other end ground connection of capacitor C7, the other end of resistance R12 and one end, the capacitor C8 of resistance R15
One end, one end of resistance R16 and the inverting input terminal of operational amplifier U2B be all connected with, the other end and resistance R15 of capacitor C8
The other end be grounded, the other end of resistance R16 is connect with the output end of operational amplifier U2B, the output of operational amplifier U2A
End is connect with the end IN0 of AD conversion chip U3, and the output end of operational amplifier U2B is connect with the end IN1 of AD conversion chip U3, AD
The end VREF+ of conversion chip U3 is the power input of AD conversion module, the end the VREF- ground connection of AD conversion chip U3, AD conversion
The end OUT1 of chip U3 to the end OUT8 is connect with the end P1.0 of micro-chip processor U1 to the end P1.7 respectively, micro-chip processor U1's
The end RST is the power input of micro treatment module, the end P0.0 to the end P0.7 of the micro-chip processor U1 D0 with chip LCD1 respectively
End to the end D7 connects, and the end VSS and the end VEE of chip LCD1 is grounded, and the vdd terminal of chip LCD1 is the power input of display
End.
Optionally, the input module includes resistance R16, resistance R17, resistance R18, key switch K1, key switch K2
With key switch K3, in which: one end of resistance R16 is connect with the end P2.3 of micro-chip processor U1, the other end of resistance R16 with press
One end of key switch K1 connects, the other end ground connection of key switch K1, one end of resistance R17 and the end P2.2 of micro-chip processor U1
Connection, the other end of resistance R17 are connect with one end of key switch K2, the other end ground connection of key switch K2, and the one of resistance R18
End is connect with the end P2.4 of micro-chip processor U1, and the other end of resistance R18 is connect with one end of key switch K3, key switch K3
The other end ground connection.
Optionally, the wavelength for the infrared light that first optical filter filters out is 760 ± 10~850nm, second filter
The wavelength for the infrared light that mating plate filters out is 930 ± 15~1050nm.
The beneficial effects of the utility model are:
The infrared light and natural light all the way of two-way different-waveband are received respectively by the way that three independent detectors are arranged, and are led to
It crosses calculus of differences module and natural light is subjected to calculus of differences with the infrared light of this two-way different-waveband respectively, interference wave can be offset
Influence of the section to thermometric accuracy, it is thus possible to the accuracy for improving measured temperature, by by thermometric as the result is shown in
On display, make it possible to intuitively show measured temperature.Therefore, compared with the background art, the utility model has knot
The advantages that structure is simple, easy to use, can be improved measurement accuracy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the right view of the utility model.
Fig. 3 is the connection relationship diagram of circuit module involved in the utility model.
Fig. 4 is the perspective view of bracket in Fig. 1.
Fig. 5 is the circuit diagram of circuit module involved in the utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with drawings and examples.
As shown in Figures 1 to 4, the double color infrared ray device in the present embodiment comprising object lens 10, object lens knob 1, shell
Body 2, the first optical filter 3, the second optical filter 4, the first detector 5, the second detector 6, third detector 7, display 8, eyepiece
9, power supply and communication cable interface 17, power module 18 and temperature computing device, the temperature computing device include calculus of differences
Module 11, AD conversion module 12 and micro treatment module 13, in which: the object lens knob 1 is connect with the threaded one end of shell 2, object
Mirror 10 is mounted in object lens knob 1, and the first optical filter 3, the second optical filter 4, the first detector 5, the second detector 6, third are visited
It surveys device 7 and temperature computing device is set in the inner cavity of shell 2, the first optical filter 3 and the second optical filter 4 are set relatively with object lens 10
It sets and the first optical filter 3 is located above the second optical filter 4, the wave for the infrared light that the first optical filter 3 and the second optical filter 4 filter out
Long different, the first detector 5 and the second detector 6 are oppositely arranged with the first optical filter 3 and the second optical filter 4 respectively, and third is visited
It surveys device 7 to be set to below the second detector 6, the signal output end of the first detector 5 and the signal output end of third detector 7
It is connect respectively with the first signal input part of calculus of differences module 11 and second signal input terminal, the signal of the second detector 6 is defeated
The signal output end of outlet and third detector 7 is defeated with the third signal input part of calculus of differences module 11 and fourth signal respectively
Enter end connection, the signal output end of calculus of differences module 11 is connect with the signal input part of AD conversion module 12, AD conversion module
12 signal output end is connect with the first signal input part of micro treatment module 13, the signal output end of micro treatment module 13 and aobvious
Show the signal input part connection of device 8, eyepiece 9 is set to the middle part of 2 other end of shell, and display 8 is set to 2 other end of shell
Top, power supply and communication cable interface 17 are set on the bottom surface of shell 2, and the power supply line in power supply and communication cable interface 17
One end and the power input of calculus of differences module 11, the power input of AD conversion module 12, micro treatment module 13 electricity
The power input of source input terminal and display 8 is all connected with, the other end of the power supply line in power supply and communication cable interface 17 with
Power module 18 connects, and power supply is used to connect with external devices with the communication line in communication cable interface 17.Power supply and connection
Communication line in cable interface is RS485 communication line.
Power module 18 in the present embodiment is capable of providing 24V direct current, and power module 18 can be battery, can also be with
To be the module that alternating current can be converted to 24V direct current, power module 18 is for being calculus of differences module 11, AD conversion module
12, micro treatment module 13 and display 8 are powered.
Optionally, the temperature computing device further includes input module 14, the signal output end of the input module 14 with
The second signal input terminal of micro treatment module 13 connects.By the way that input module 14 is arranged, measurement pattern when can be set thermometric,
The parameters such as emissivity, the cigarette ash factor, filter factor, response speed, peak holding time, so that the utility model can satisfy section
Grind the requirement of the temperature such as test, vacuum equipment measurement grade control feedback.After setting various parameters, micro treatment module 13 can
It is shown with controlling the various parameters of 8 pairs of display settings.
Optionally, the double color infrared ray device further includes fastening nut 15 and bracket 16, and bracket 16 passes through fastening spiral shell
Mother 15 is fixed on 1 periphery of object lens knob.By the way that bracket 16 is arranged, fixed double color infrared ray device can be played the role of；It is logical
Crossing fastening nut 15 can closely be connected bracket 16 and double color infrared ray device.
In this embodiment, as shown in figure 5, the calculus of differences module 11 includes resistance R1, resistance R2, resistance R3, electricity
Hinder R4, resistance R5, resistance R6, resistance R7, resistance R8, capacitor C1, capacitor C2, capacitor C3, capacitor C4, operational amplifier U2A
(AD706K), resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, capacitor
C5, capacitor C6, capacitor C7, capacitor C8 and operational amplifier U2B (AD706K), AD conversion module 12 include AD conversion chip U3
(ADC0808), micro treatment module 13 includes micro-chip processor U1 (80C31), and display includes chip LCD1 (LM016L),
In: one end (the first signal input part of calculus of differences module 11) of resistance R1 and the signal output end (output of the first detector 5
The infrared light of Fig. 5 medium wave band one) connection, the other end of resistance R1 and one end of one end of resistance R3 and capacitor C1 are all connected with, electric
Hold the other end ground connection of C1, the other end of resistance R3 and one end of one end of resistance R5, one end of resistance R6 and capacitor C2 connect
It connects, the other end ground connection of capacitor C2, the other end of resistance R6 is the power input of calculus of differences module 11, and resistance R5's is another
End is connect with the non-inverting input terminal of operational amplifier U2A；(second signal of calculus of differences module 11 inputs for one end of resistance R2
End) it is connect with the signal output end (natural light in output Fig. 5) of third detector 7, the other end of resistance R2 is with resistance R4's
One end and one end of capacitor C3 are all connected with, the other end ground connection of capacitor C3, the other end of resistance R4 and one end, the capacitor of resistance R7
The inverting input terminal of one end of C4, one end of resistance R8 and operational amplifier U2A is all connected with, the other end and resistance R7 of capacitor C4
The other end be grounded, (signal of calculus of differences module 11 exports the output end of the other end of resistance R8 and operational amplifier U2A
End) connection；The signal output end of one end (the third signal input part of calculus of differences module 11) and the second detector 6 of resistance R9
(infrared light of output Fig. 5 medium wave band two) connection, the other end of resistance R9 and one end of one end of resistance R11 and capacitor C5 connect
It connects, the other end ground connection of capacitor C5, the other end and one end of resistance R13, one end of resistance R14 and the capacitor C6 of resistance R11
One end is all connected with, and the other end ground connection of capacitor C6, the other end of resistance R14 is the power input of calculus of differences module 11, electricity
The other end of resistance R13 is connect with the non-inverting input terminal of operational amplifier U2B；One end (of calculus of differences module 11 of resistance R10
Four signal input parts) it is connect, the other end of resistance R10 with the signal output end (natural light in output Fig. 5) of third detector 7
It is all connected with one end of resistance R12 and one end of capacitor C7, the other end ground connection of capacitor C7, the other end and resistance of resistance R12
One end of R15, one end of capacitor C8, one end of resistance R16 and operational amplifier U2B inverting input terminal be all connected with, capacitor C8
The other end and the other end of resistance R15 be grounded, the output end of the other end of resistance R16 and operational amplifier U2B (transport by difference
Calculate the signal output end of module 11) connection, the output end of operational amplifier U2A and the end IN0 (the AD conversion mould of AD conversion chip U3
The signal input part of block 12) connection, the output end (signal input part of AD conversion module 12) and AD conversion of operational amplifier U2B
The end IN1 of chip U3 connects, and the end VREF+ of AD conversion chip U3 is the power input of AD conversion module 12, AD conversion chip
The end VREF- of U3 is grounded, the end OUT1 to the end OUT8 (signal output end of AD conversion module 12) of AD conversion chip U3 respectively with
The end P1.0 of micro-chip processor U1 to the end P1.7 (the first signal input part of micro treatment module 13) connection, micro-chip processor U1's
The end RST is the power input of micro treatment module 13, the end P0.0 to the end the P0.7 (letter of micro treatment module 13 of micro-chip processor U1
Number output end) it is connect respectively with the end D0 of chip LCD1 to the end D7 (signal input part of display 8), the end VSS of chip LCD1
It is grounded with the end VEE, the vdd terminal of chip LCD1 is the power input of display 8.
Further, the input module 14 is opened including resistance R16, resistance R17, resistance R18, key switch K1, key
Close K2 and key switch K3, in which: one end (the second signal input terminal of micro treatment module 13) of resistance R16 and micro-chip processor
The end P2.3 of U1 connects, and the other end of resistance R16 is connect with one end of key switch K1, the other end ground connection of key switch K1,
One end (the second signal input terminal of micro treatment module 13) of resistance R17 is connect, resistance R17 with the end P2.2 of micro-chip processor U1
The other end connect with one end of key switch K2, the other end of key switch K2 ground connection, one end (micro process mould of resistance R18
The second signal input terminal of block 13) it is connect with the end P2.4 of micro-chip processor U1, the other end of resistance R18 is with key switch K3's
One end connection, the other end ground connection of key switch K3.
In this embodiment, the wavelength for the infrared light that first optical filter 3 filters out is 760 ± 10~850nm, described
The wavelength for the infrared light that second optical filter 4 filters out is 930 ± 15~1050nm.
When the utility model is used, the energy of target object radiation enters double color infrared ray device by object lens 10
Afterwards, the first optical filter 3 and the second optical filter 4 are passed through, after the first optical filter 3 and the screening of the second optical filter 4, object lens 10 are received
Photodegradation be three road optical signals, the infrared light and natural light all the way of two-way wave band are obtained, for example, the infrared light of two-way wave band
Wave-length coverage is respectively 760 ± 10~850nm, 930 ± 15~1050nm, and the first detector 5, the second detector 6 and third are visited
It surveys device 7 to receive respectively after this three roads optical signal handled, calculus of differences module 11 is first via wave band (wavelength to wave-length coverage
Range is 760 ± 10~850nm) infrared light and natural light and the second road wave band (wave-length coverage is 930 ± 15~1050nm)
Infrared light and natural light carry out calculus of differences respectively, to obtain the optical signal of two wave bands after filtering out the influence of jammr band,
The optical signal of the two wave bands enters micro treatment module 13, micro- place after AD conversion module 12 is AD converted respectively later
Reason module 13 is calculated the temperature of target object according to the ratio between the energy of optical signal of the two wave bands and controls and will calculate
The temperature display arrived is on the display 8.It is set by input module 14, when can be by history temperature measurement data and measurement temperature
Parameter be stored in micro treatment module 13, by power supply and the communication line in communication cable interface 17 allow the utility model with it is outer
Boundary's equipment carries out data transmission, such as transmission temperature data etc..
Wherein, micro treatment module 13 calculates the temperature of target object according to the ratio between energy of optical signal of the two wave bands
When, it can be calculated by following formula (1):
In formula (1), M (T, λ1) and M (T, λ2) it is in two wavelength Xs1And λ2Down while measuring what same measurement point issued
Spectral radiant exitance, T are the temperature of testee, λ1And λ2For the infrared light of micro treatment module 13 received two wave bands
Wavelength.
Wherein,
In formula (2), M (T, λ) is spectral radiant exitance；λ is the wavelength of radiated electromagnetic wave；T is thermodynamic temperature；C1
For first radiation constant, C1=3.715 × 10-16Wm2；C2For second radiation constant, C2=1.438 × 10-2mK。
Micro treatment module 13 by so calculate target object temperature, can effectively eliminate distance coefficient, background radiation,
The influence that the factors such as Atmospheric Absorption measure temperature, so as to effectively improve temperature measurement accuracy.
It is understood that embodiment of above is merely to illustrate that the principles of the present invention and uses exemplary
Embodiment, however the utility model is not limited thereto.For those skilled in the art, this is not being departed from
In the case where the spirit and essence of utility model, various changes and modifications can be made therein, these variations and modifications are also considered as this reality
With novel protection scope.
Claims (6)
1. a kind of double color infrared ray device, which is characterized in that including object lens (10), object lens knob (1), shell (2), the first filter
Mating plate (3), the second optical filter (4), the first detector (5), the second detector (6), third detector (7), display (8), mesh
Mirror (9), power supply and communication cable interface (17), power module (18) and temperature computing device, the temperature computing device include
Calculus of differences module (11), AD conversion module (12) and micro treatment module (13), in which:
The object lens knob (1) connect with the threaded one end of shell (2), and object lens (10) are mounted in object lens knob (1), the first filter
Mating plate (3), the second optical filter (4), the first detector (5), the second detector (6), third detector (7) and temperature computing device
It is set in the inner cavity of shell (2), the first optical filter (3) and the second optical filter (4) and object lens (10) are oppositely arranged and the first filter
Mating plate (3) is located at the second optical filter (4) above, the wavelength for the infrared light that the first optical filter (3) and the second optical filter (4) filter out
Difference, the first detector (5) and the second detector (6) are oppositely arranged with the first optical filter (3) and the second optical filter (4) respectively,
Third detector (7) is set to below the second detector (6), the signal output end and third detector of the first detector (5)
(7) signal output end is connect with the first signal input part of calculus of differences module (11) and second signal input terminal respectively, the
The signal output end of the signal output ends of two detectors (6) and third detector (7) respectively with calculus of differences module (11)
Three signal input parts are connected with fourth signal input terminal, the signal output end of calculus of differences module (11) and AD conversion module (12)
Signal input part connection, the first signal input part of the signal output end of AD conversion module (12) and micro treatment module (13) connects
It connects, the signal output end of micro treatment module (13) is connect with the signal input part of display (8), and eyepiece (9) is set to shell (2)
The middle part of the other end, display (8) are set to the top of shell (2) other end, and power supply is set to communication cable interface (17)
On the bottom surface of shell (2), and one end of the power supply line in power supply and communication cable interface (17) and calculus of differences module (11)
Power input, the power input of AD conversion module (12), the power input of micro treatment module (13) and display (8)
Power input is all connected with, and power supply is connect with the other end of the power supply line in communication cable interface (17) with power module (18),
Power supply is used to connect with external devices with the communication line in communication cable interface (17).
2. double color infrared ray device according to claim 1, which is characterized in that the temperature computing device further includes defeated
Enter module (14), the signal output end of the input module (14) is connect with the second signal input terminal of micro treatment module (13).
3. double color infrared ray device according to claim 1 or 2, which is characterized in that the double color infrared ray device
It further include fastening nut (15) and bracket (16), bracket (16) is fixed on object lens knob (1) periphery by fastening nut (15).
4. double color infrared ray device according to claim 1 or 2, which is characterized in that the calculus of differences module (11)
Including resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, capacitor C1, capacitor C2, electricity
Hold C3, capacitor C4, operational amplifier U2A, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance
R15, resistance R16, capacitor C5, capacitor C6, capacitor C7, capacitor C8 and operational amplifier U2B, AD conversion module (12) include that AD turns
Chip U3 is changed, micro treatment module (13) includes micro-chip processor U1, and display includes chip LCD1, in which:
One end of resistance R1 is connect with the signal output end of the first detector (5), the other end of resistance R1 and one end of resistance R3
It is all connected with one end of capacitor C1, the other end of capacitor C1 ground connection, one end of the other end of resistance R3 and resistance R5, resistance R6
One end and one end of capacitor C2 are all connected with, and the other end ground connection of capacitor C2, the other end of resistance R6 is calculus of differences module (11)
Power input, the other end of resistance R5 connect with the non-inverting input terminal of operational amplifier U2A；One end of resistance R2 and third
The signal output end of detector (7) connects, and the other end of resistance R2 and one end of one end of resistance R4 and capacitor C3 are all connected with, electricity
Hold the other end ground connection of C3, the other end of resistance R4 and one end of resistance R7, one end of capacitor C4, one end of resistance R8 and operation
The inverting input terminal of amplifier U2A is all connected with, and the other end of capacitor C4 and the other end of resistance R7 are grounded, and resistance R8's is another
End is connect with the output end of operational amplifier U2A；One end of resistance R9 is connect with the signal output end of the second detector (6), electricity
The other end of resistance R9 is all connected with one end of resistance R11 and one end of capacitor C5, the other end ground connection of capacitor C5, resistance R11's
The other end and one end of one end of resistance R13, one end of resistance R14 and capacitor C6 are all connected with, the other end ground connection of capacitor C6, electricity
The other end for hindering R14 is the power input of calculus of differences module (11), and the other end of resistance R13 is with operational amplifier U2B's
Non-inverting input terminal connection；One end of resistance R10 is connect with the signal output end of third detector (7), the other end of resistance R10 with
One end of resistance R12 and one end of capacitor C7 are all connected with, the other end ground connection of capacitor C7, the other end and resistance R15 of resistance R12
One end, one end of capacitor C8, one end of resistance R16 and operational amplifier U2B inverting input terminal be all connected with, capacitor C8's is another
The other end of one end and resistance R15 are grounded, and the other end of resistance R16 is connect with the output end of operational amplifier U2B, and operation is put
The output end of big device U2A is connect with the end IN0 of AD conversion chip U3, the output end and AD conversion chip U3 of operational amplifier U2B
The connection of the end IN1, the end VREF+ of AD conversion chip U3 is the power input of AD conversion module (12), AD conversion chip U3's
The end VREF- ground connection, the end OUT1 to the end OUT8 of AD conversion chip U3 connect with the end P1.0 of micro-chip processor U1 to the end P1.7 respectively
It connects, the end RST of micro-chip processor U1 is the power input of micro treatment module (13), the end P0.0 of micro-chip processor U1 to P0.7
End is connect with the end D0 of chip LCD1 to the end D7 respectively, and the end VSS and the end VEE of chip LCD1 is grounded, the vdd terminal of chip LCD1
For the power input of display (8).
5. double color infrared ray device according to claim 2, which is characterized in that the input module (14) includes resistance
R16, resistance R17, resistance R18, key switch K1, key switch K2 and key switch K3, in which: one end of resistance R16 with it is micro-
The end the P2.3 connection of chip U1 is handled, the other end of resistance R16 is connect with one end of key switch K1, and key switch K1's is another
End ground connection, one end of resistance R17 are connect with the end P2.2 of micro-chip processor U1, and the other end of resistance R17 is with key switch K2's
One end connection, the other end ground connection of key switch K2, one end of resistance R18 are connect with the end P2.4 of micro-chip processor U1, resistance
The other end of R18 is connect with one end of key switch K3, the other end ground connection of key switch K3.
6. double color infrared ray device according to claim 1, which is characterized in that first optical filter (3) filters out
The wavelength of infrared light be 760 ± 10~850nm, the wavelength of the infrared light that second optical filter (4) filters out is 930 ± 15
~1050nm.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109459141A (en) * | 2018-12-18 | 2019-03-12 | 山西德润翔电力科技有限公司 | Double color infrared ray device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459141A (en) * | 2018-12-18 | 2019-03-12 | 山西德润翔电力科技有限公司 | Double color infrared ray device |
| CN109459141B (en) * | 2018-12-18 | 2024-04-30 | 山西德润翔电力科技有限公司 | Dual-color infrared temperature measuring device |
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