CN207923319U - A kind of optical fiber temperature-measurement device - Google Patents
A kind of optical fiber temperature-measurement device Download PDFInfo
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- CN207923319U CN207923319U CN201820416064.3U CN201820416064U CN207923319U CN 207923319 U CN207923319 U CN 207923319U CN 201820416064 U CN201820416064 U CN 201820416064U CN 207923319 U CN207923319 U CN 207923319U
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- optical fiber
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 31
- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 24
- 238000012545 processing Methods 0.000 claims abstract description 41
- 239000000523 sample Substances 0.000 claims abstract description 40
- 239000000835 fiber Substances 0.000 claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims description 27
- 230000003287 optical effect Effects 0.000 claims description 8
- 230000008054 signal transmission Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model discloses a kind of optical fiber temperature-measurement device.Described device includes：The modem for contacting the fibre-optical probe of installation with measured object and being connect with fibre-optical probe by optical fiber, the data processing module being connect with modem, the optic fibre switching module being connect with data processing module.It is communicated according to MODBUS agreements between modem and data processing module, between data processing module and optic fibre switching module.The utility model, as temperature sensor, is improved interference free performance, the temperature value of measured object can be accurately measured even if strong electromagnetic interference environment using fibre-optical probe；By the way that fibre-optical probe is contacted installation with measured object, the temperature-sensitive efficiency of fibre-optical probe is improved, to improve temperature measurement accuracy；By the way that optic fibre switching module is arranged, the fiber optic communication of temperature measuring equipment and Monitor Computer Control System is realized, the interference free performance of signal transmission is improved.
Description
Technical field
The utility model belongs to technical field of temperature measurement, and in particular to a kind of optical fiber temperature-measurement device.
Background technology
Traditional temperature measurement technology mostly uses thermocouple, thermistor, leucoscope, semiconductor and other fields
Temperature sensor utilize temperature to the modulating action of electronic signal by temperature change using electronic signal as sensing media
The variation for being converted to voltage signal is measured according to the size of the voltage signal into trip temperature.
Although traditional temperature measurement technology is widely applied, but under special operation condition and environment, such as explosive, easy
Combustion high voltage, strong-electromagnetic field, has corrosive gas and liquid, and requires under the environment such as quick response, non-contact, tradition
Temperature measurement technology be greatly limited.Especially under strong electromagnetic interference environment, the transmission of electric signal will be by serious
Interference, so as to cause the reduction of temperature measurement accuracy.
Utility model content
In order to solve the above-mentioned problems in the prior art, the utility model proposes a kind of optical fiber temperature-measurement devices.
To achieve the above object, the utility model adopts the following technical solution：
A kind of optical fiber temperature-measurement device, including：The fibre-optical probe of installation is contacted with measured object and is visited by optical fiber and optical fiber
The modem of head connection, the data processing module being connect with modem, the optical fiber being connect with data processing module turn
Connection module.Between modem and data processing module, between data processing module and optic fibre switching module according to
MODBUS agreements are communicated.Modem is used to the optical signal by temperature modulation that fibre-optical probe exports being converted into telecommunications
Number, data processing module is used for by carrying out the temperature value that data processing calculates measured object, optic fibre switching mould to the electric signal
Block for realizing described device and Monitor Computer Control System fiber optic communication.
Further, fibre-optical probe is mounted in the measured hole being arranged on measured object.
Further, the data processing module includes that first microprocessor and the first coupled MODBUS-485 connect
Mouth conversion circuit.
Further, the optic fibre switching module includes that the second microprocessor and the 2nd coupled MODBUS-485 connect
Mouth conversion circuit, electric-light conversion circuit and optical-electronic conversion circuit.
Further, described device further includes the display being connected with data processing module.
Compared with prior art, the utility model has the advantages that：
The utility model proposes a kind of optical fiber temperature-measurement device, by be arranged contact with measured object the fibre-optical probe installed with
And the modem being connect with fibre-optical probe by optical fiber, the data processing module being connect with modem, at data
The optic fibre switching module for managing module connection, realizes optical fiber temperature-measurement.The utility model using fibre-optical probe as temperature sensor,
Interference free performance is improved, the temperature value of measured object can be accurately measured even if strong electromagnetic interference environment；By the way that optical fiber is visited
Head contacts installation with measured object, the temperature-sensitive efficiency of fibre-optical probe is improved, to improve temperature measurement accuracy；Turned by the way that optical fiber is arranged
Connection module realizes the fiber optic communication of temperature measuring equipment and Monitor Computer Control System, improves the interference free performance of signal transmission.
Description of the drawings
Fig. 1 is a kind of block diagram of optical fiber temperature-measurement device of the utility model embodiment；
Fig. 2 is the electrical schematic diagram that electric-light conversion circuit and optical-electronic conversion circuit are connect with the second microprocessor.
In figure：1- fibre-optical probes, 2- modems, 3- data processing modules, 31- first microprocessors, 32- first
MODBUS-485 interface conversion circuits, 4- optic fibre switching modules, the second microprocessors of 41-, the 2nd MODBUS-485 interfaces of 42- turn
Change circuit, 43- electric-light conversion circuits, 44- optical-electronic conversion circuits, 5- displays.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings.
A kind of optical fiber temperature-measurement device of the utility model embodiment is as shown in Figure 1, described device includes：Peace is contacted with measured object
The fibre-optical probe 1 of dress and the modem 2 being connect with fibre-optical probe 1 by optical fiber, the data being connect with modem 2
Processing module 3, the optic fibre switching module 4 being connect with data processing module 3.Between modem 2 and data processing module 3,
It is communicated according to MODBUS agreements between data processing module 3 and optic fibre switching module 4.Modem 2 is used for light
The optical signal by temperature modulation of 1 output of fibre probe is converted into electric signal, and data processing module 3 is used for by the electric signal
The temperature value that data processing calculates measured object is carried out, optic fibre switching module 4 is for realizing described device and Monitor Computer Control System
Fiber optic communication.
In the present embodiment, described device is mainly by fibre-optical probe 1, modem 2, data processing module 3 and optical fiber
Interconnecting module 4 forms.Wherein：
Fibre-optical probe 1 is used as temperature sensor, and the variation for perceiving measured object temperature generates and believed by the light of temperature modulation
Number.Fibre-optical probe 1 contacts installation with measured object, and in order to improve the temperature-sensitive efficiency of fibre-optical probe 1, fibre-optical probe 1 connects with measured object
The closer touch the better, and contact area is the bigger the better.When measuring the temperature of certain electronic unit, as IC chip, power supply are whole
The silicon-controlled etc. of bridge is flowed, fibre-optical probe 1 can directly be contacted installation with electronic unit.But majority of case and electronic unit
Radiator contact installation is more effective because the temperature of radiator is equal to the temperature of electronic unit, and area/volume of radiator compared with
Greatly, it is more convenient for the installation of fibre-optical probe 1.Fibre-optical probe 1 is connect by optical fiber with modem 2, by generation by temperature tune
The optical signal of system is sent to modem 2.
Modem 2 is used for the converting optical signals at voltage signal (amplitude or pulsewidth are directly proportional to temperature).It adjusts
Modulator-demodulator 2 is generally mainly made of signal detection circuit and data processing unit, general that multiple signals detection circuit is arranged, often
Road signal detection circuit connects a fibre-optical probe.Signal detection circuit is main for converting optical signals into analog voltage signal
It will be by light source (such as LED light-pulse generators) and its driving circuit, photodetection circuit, half-reflection and half-transmission filter plate, coupled lens group
At.Driving circuit drives light source luminescent, and half-reflection and half-transmission filter plate and coupled lens are set gradually on the emitting light path of light source, leads to
The fiber connector being arranged at the emitting light path rear of coupled lens is crossed to connect with fibre-optical probe by optical fiber.Data processing unit
For analog voltage signal to be converted into digital signal, and by multi-path digital signal according to MODBUS agreements timing transmission to data
Processing module 3.
Data processing module 3 be mainly used for by electric signal that modem 2 is inputted carry out data decoding, filtering,
The operations such as calibration, temperature computation calculate the temperature value of measured object.Data processing module 3 by the temperature voltage signal of output according to
MODBUS agreements are sent to optic fibre switching module 4.
Optic fibre switching module 4 is mainly used for realizing the fiber optic communication of described device and Monitor Computer Control System.For example, will be by
The temperature data (electric signal) that data processing module 3 inputs is converted into being sent to Monitor Computer Control System by optical fiber after optical signal,
Or the control signal (optical signal) from Monitor Computer Control System inputted by optical fiber is converted into sending to data after electric signal
Manage module 3.
The present embodiment is used as temperature sensor using fibre-optical probe 1, and the electromagnetism interference performance transmitted using optical fiber is improved
Temperature measurement accuracy under strong electromagnetic interference environment；By the way that fibre-optical probe 1 is contacted installation with measured object, fibre-optical probe 1 is improved
Temperature-sensitive efficiency, to improve temperature measurement accuracy；By the way that optic fibre switching module 4 is arranged, realizes temperature measuring equipment and supervised with host computer
The fiber optic communication of control system improves the interference free performance of signal transmission.
As a kind of alternative embodiment, fibre-optical probe 1 is mounted in the measured hole being arranged on measured object.
This gives a kind of preferable mount schemes of fibre-optical probe 1.Mounting hole, the installation are played on measured object
Hole is strictly matched with the shape of fibre-optical probe 1, and fibre-optical probe 1 is inserted into mounting hole, can make fibre-optical probe 1 and inner wall of the hole installing
Effectively contact, to improve the temperature-sensitive efficiency of fibre-optical probe 1.It is exactly each for example, when measuring the temperature of silicon controlled component
Mounting hole is beaten on silicon-controlled cooling fin, fibre-optical probe 1 is inserted into mounting hole.
As a kind of alternative embodiment, the data processing module 3 includes first microprocessor 31 and its connected first
MODBUS-485 interface conversion circuits 32.
This gives a kind of technical solutions of data processing module 3.The core component of data processing module 3 is one
A microprocessor chip, i.e. first microprocessor 31.Because of data processing module 3 and modem 2 and optic fibre switching module 4
According to MODBUS protocol communications, so further include an interface conversion circuit being connected with microprocessor chip, i.e., first
MODBUS-485 interface conversion circuits 32.First microprocessor 31 is arm processor, and STM32F103 chips can be selected.First
ADM2486 chips can be selected in MODBUS-485 interface conversion circuits 32, for believing the serial digital amount of the 3.3V at processor end
Number be converted to the differential signal with 485 interface of standard.
As a kind of alternative embodiment, the optic fibre switching module 4 includes the second microprocessor 41 and coupled the
Two MODBUS-485 interface conversion circuits 42, electric-light conversion circuit 43 and optical-electronic conversion circuit 44.
This gives a kind of technical solutions of optic fibre switching module 4.As shown in Fig. 2, optic fibre switching module 4 is main
It is made of electric-light conversion circuit 43 (U2), optical-electronic conversion circuit 44 (U3) and control unit (U1).Control unit is one micro-
Processor chips, i.e. the second microprocessor 41.In addition to this, further include interface conversion circuit for realizing communication, i.e., second
MODBUS-485 interface conversion circuits 42.STM32F103 chips can be selected in second microprocessor 41, and electric-light conversion circuit 43 can
Select HFBR1412 chips, optical-electronic conversion circuit 44 that HFBR2412 chips, the 2nd MODBUS-485 interface conversion circuits can be selected
42 optional SN65HVD22 chips.
As a kind of alternative embodiment, described device further includes the display 5 being connected with data processing module 3.
In order to realize that the visualization of temperature is shown, the present embodiment is provided with the display 5 being connected with data processing module 3.
Display 5 can select charactron, can also select LCD or light-emitting diode display.
It is above-mentioned that only several specific embodiments in the utility model are illustrated, but can not be as the utility model
Protection domain, the equivalent change or modification or equal proportion that every design spirit according in the utility model is made are amplified or contracting
It is small etc., it is deemed to fall the scope of protection of the utility model.
Claims (5)
1. a kind of optical fiber temperature-measurement device, which is characterized in that including：The fibre-optical probe of installation is contacted with measured object and passes through optical fiber
The modem being connect with fibre-optical probe, the data processing module being connect with modem, connect with data processing module
Optic fibre switching module；Between modem and data processing module, between data processing module and optic fibre switching module
It is communicated according to MODBUS agreements；Modem is for the optical signal by temperature modulation that fibre-optical probe exports to be converted into
Electric signal, data processing module are used for by carrying out the temperature value that data processing calculates measured object to the electric signal, and optical fiber turns
Connection module for realizing described device and Monitor Computer Control System fiber optic communication.
2. optical fiber temperature-measurement device according to claim 1, which is characterized in that the fibre-optical probe is mounted on setting tested
In measured hole on object.
3. optical fiber temperature-measurement device according to claim 1, which is characterized in that the data processing module includes first micro- place
Manage device and the first coupled MODBUS-485 interface conversion circuits.
4. optical fiber temperature-measurement device according to claim 1, which is characterized in that the optic fibre switching module includes second micro- place
Manage device and coupled the 2nd MODBUS-485 interface conversion circuits, electric-light conversion circuit and optical-electronic conversion circuit.
5. according to Claims 1 to 4 any one of them optical fiber temperature-measurement device, which is characterized in that described device further includes and counts
The display being connected according to processing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820416064.3U CN207923319U (en) | 2018-03-27 | 2018-03-27 | A kind of optical fiber temperature-measurement device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820416064.3U CN207923319U (en) | 2018-03-27 | 2018-03-27 | A kind of optical fiber temperature-measurement device |
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| Publication Number | Publication Date |
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| CN207923319U true CN207923319U (en) | 2018-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820416064.3U Active CN207923319U (en) | 2018-03-27 | 2018-03-27 | A kind of optical fiber temperature-measurement device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446708A (en) * | 2021-06-08 | 2021-09-28 | 济南量子技术研究院 | Temperature and humidity signal real-time transmission device and method |
-
2018
- 2018-03-27 CN CN201820416064.3U patent/CN207923319U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446708A (en) * | 2021-06-08 | 2021-09-28 | 济南量子技术研究院 | Temperature and humidity signal real-time transmission device and method |
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