CN210571043U - Temperature measuring device in aluminum alloy hot forming process - Google Patents
Temperature measuring device in aluminum alloy hot forming process Download PDFInfo
- Publication number
- CN210571043U CN210571043U CN201920264957.5U CN201920264957U CN210571043U CN 210571043 U CN210571043 U CN 210571043U CN 201920264957 U CN201920264957 U CN 201920264957U CN 210571043 U CN210571043 U CN 210571043U
- Authority
- CN
- China
- Prior art keywords
- objective lens
- data acquisition
- acquisition system
- aluminum alloy
- driving circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Radiation Pyrometers (AREA)
Abstract
A temperature measuring device in the process of aluminum alloy hot forming belongs to the field of temperature measurement. The infrared temperature measurement method is difficult to be applied in the aluminum rolling production line. A temperature measuring device in the process of aluminum alloy hot forming is characterized in that a collimating objective lens receives information of an objective lens, a grating receives information of the collimating objective lens, a focusing objective lens receives information of the grating, a pyroelectric sensor receives information of the focusing objective lens, a driving circuit and a data acquisition system receive information of the pyroelectric sensor, and an upper computer and an LCD display receive information of the driving circuit and the data acquisition system; in the driving circuit and the data acquisition system, signals sequentially pass through an amplifier, a filter and an integrator; the D, S, E electrode of the pyroelectric sensor is respectively used as the drain electrode of a field effect tube of the driving circuit and the data acquisition system, the electric signal output end of the S converted by the pyroelectric detector and the cathode of the field effect tube. And the online high-precision measurement of the temperature of the aluminum plate is realized.
Description
Technical Field
The utility model relates to a measuring device of temperature among aluminum alloy thermoforming process.
Background
In the aluminum industry, in order to improve product quality and production efficiency, it is necessary to detect the temperature of an aluminum plate in a plurality of production processes. Since the aluminum rolling process of the aluminum plate is mostly in motion, the contact method using a thermocouple, a thermal resistor or the like is not suitable. Due to the fact that the emissivity of aluminum is very low and changes (about 0.1), the reflectivity is very high, water or oil films can be formed on the surface of the aluminum, and the infrared thermometry is difficult to apply in an aluminum rolling production line.
Disclosure of Invention
The utility model aims at solving the problem that the existing infrared temperature measurement method is difficult to be applied in the aluminum rolling production line, and providing a measuring device for the temperature in the aluminum alloy hot forming process.
A temperature measuring device in the aluminum alloy hot forming process comprises an objective lens, a collimating objective lens, a grating, a focusing objective lens, a pyroelectric sensor, a driving circuit, a data acquisition system, an LCD and an upper computer; the collimating objective lens receives information of the objective lens, the grating receives information of the collimating objective lens, the focusing objective lens receives information of the grating, the pyroelectric sensor receives information of the focusing objective lens, the driving circuit and the data acquisition system receive information of the pyroelectric sensor, and the upper computer and the LCD receive information of the driving circuit and the data acquisition system;
furthermore, the drive circuit and the data acquisition system include: an amplifier, a filter, an integrator; the signal direction sequentially passes through an amplifier, a filter and an integrator;
the D, S, E electrode of the pyroelectric sensor is respectively used as the drain electrode of a field effect tube of the driving circuit and the data acquisition system, the electric signal output end of the S converted by the pyroelectric detector and the cathode of the field effect tube.
The utility model has the advantages that:
the utility model discloses a multispectral radiation temperature measurement method through multispectral information processing algorithm, combines the rolling technology process of aluminum alloy plate, eliminates the environmental impact, realizes the online high accuracy measurement of aluminum plate temperature. The utility model discloses can provide accurate and reliable temperature measurement means for china's aluminum product production industry, have important meaning to improving china's aluminum product production quality and efficiency.
Drawings
Fig. 1 is a schematic structural diagram related to the present invention;
fig. 2 is a schematic view of the working principle of the present invention;
fig. 3 is a schematic circuit diagram of the driving circuit and the data acquisition system according to the present invention.
Detailed Description
The first embodiment is as follows:
the temperature measuring device in the aluminum alloy hot forming process comprises an objective lens 1, a collimating objective lens 2, a grating 3, a focusing objective lens 4, a pyroelectric sensor 5, a driving circuit and data acquisition system 6, an LCD (liquid crystal display) 7 and an upper computer 8; the collimator objective lens 2 receives information of the objective lens 1, the grating 3 receives information of the collimator objective lens 2, the focusing objective lens 4 receives information of the grating 3, the pyroelectric sensor 5 receives information of the focusing objective lens 4, the driving circuit and data acquisition system 6 receives information of the pyroelectric sensor 5, and the upper computer 8 and the LCD 7 receive information of the driving circuit and the data acquisition system 6;
the drive circuit and data acquisition system 6 includes: an amplifier 9, a filter 10, an integrator 11; the signal goes through an amplifier 9, a filter 10 and an integrator 11 in sequence;
the D, S, E electrode of the pyroelectric sensor 5 is respectively used as a driving circuit and a field effect tube drain electrode of the data acquisition system 6, and is used for connecting a +12V power supply, an electric signal output end converted by the pyroelectric detector and a cathode of the field effect tube, and is used for grounding;
when in measurement, the objective lens of the infrared multispectral radiation thermometer is firstly aligned to a measured object, so that the energy radiated by the measured object enters a slit through the objective lens, then the energy is converted into a beam of parallel light through the collimating objective lens 2 and the beam of parallel light is irradiated onto the grating 3, the grating 3 separates the light with different wavelengths to form a spectrum which is received by the linear array PbSe detector, and meanwhile, the PbSe detector converts an optical signal generated by the radiation of the object into an electric signal. But the electric signal is very weak at this time, the electric signal is acquired after being amplified, the amplified electric signal is transmitted to a PC through a USB bus, corresponding software is programmed on the PC to process, display and store data, and finally the temperature and the spectral emissivity of the target are obtained according to a multispectral algorithm.
The second embodiment is as follows:
different from the specific embodiment, the temperature measuring device in the aluminum alloy thermoforming process of the embodiment further comprises a Fresnel optical lens, the Fresnel optical lens is arranged on a lens of the pyroelectric detector, the detection sensitivity of the detector is improved to increase the detection distance, the Fresnel lens is made of transparent plastics, the upper portion and the lower portion of the Fresnel lens are divided into a plurality of equal parts respectively, and the Fresnel lens is made into a lens with a special optical system, and the lens is matched with an amplifying circuit and can amplify signals by more than 70 decibels, so that the movement of a person within the range of 10-20 meters can be measured. The Fresnel lens utilizes the special optical principle of the lens to generate a blind area and a high-sensitivity area which are alternately changed in front of the detector so as to improve the detection receiving sensitivity of the Fresnel lens. When the object to be measured passes through the lens, the emitted infrared rays continuously and alternately enter the high-sensitivity region from the blind region, so that the received infrared signals are input in a pulse mode of varying intensity, and the energy amplitude of the infrared signals is increased.
The third concrete implementation mode:
different from the second embodiment, the pyroelectric sensor 5 of the temperature measuring device in the aluminum alloy hot forming process of the second embodiment is a RE200B two-element pyroelectric sensor 5, the sensor has a sensitive element area of 2.0 × 1.0mm2, a substrate thickness of 0.5mm, an operating wavelength of 7-14 μm, an average transmittance of > 75%, an output signal of > 2.5V (420 ° k blackbody 1Hz modulation frequency of 0.3-3.0Hz bandwidth of 72.5db gain), a noise of < 200mV (mVp) (25 ℃), a balance of < 20%, an operating voltage of 2.2-15V, an operating current of 8.5-24 μ a (VD =10V, Rs =47k Ω,25 ℃), a source voltage of 0.4-1.1V (VD =10V, Rs =47k, 25 ℃), an operating temperature of-20 Ω - +70 ℃, a storage temperature of-35 ℃ - +80 ℃, the field of view is 139 ° x 126 °. And the double-sensitive element complementary method is adopted to effectively inhibit the fluctuation of temperature and the interference generated by the vibration temperature change, the working stability of the sensor is improved, and all indexes of the sensor are good. Is suitable for the places with not very high temperature of human body and some production lines.
The fourth concrete implementation mode:
different from the third embodiment, in the temperature measuring device in the aluminum alloy hot forming process of the present embodiment, the integrator 11 is an ICL7106 integral a/D converter. The integral A/D converter has low precision cost; the precision is related to the precision of the integral resistor and the integral capacitor, so that the requirement on the quality of the element can be reduced; the anti-interference capability is strong; and its peripheral circuits are simple.
The fifth concrete implementation mode:
different from the fourth specific embodiment, in the temperature measuring device in the aluminum alloy thermoforming process of the present embodiment, the LCD display 7 is composed of a multi-position liquid crystal display driver ICL7106, a standard segment type liquid crystal display EDS801, and other components. The signal processed by the driving circuit and the data acquisition system 6 enters an A/D conversion circuit of the multi-position liquid crystal display driver ICL7106 through the input port, the multi-position liquid crystal display driver ICL7106 performs A/D conversion, and the temperature of the measured object is displayed with an EDS801 display screen of a standard section.
The working principle is as follows:
firstly, aligning an objective lens to an object to be measured, and enabling energy radiated by the object to be measured to enter a slit through the objective lens;
secondly, the light beam is changed into a beam of parallel light through the collimating objective and then is irradiated onto the grating, and the grating reflects the beam to the focusing objective;
thirdly, the focusing objective lens separates light with different wavelengths to form a spectrum which is received by the linear array pyroelectric sensor, and meanwhile, the pyroelectric sensor converts optical signals generated by object radiation into electric signals;
fourthly, the electrical signals in the third step are very weak and need to be acquired after being amplified, and then the electrical signals are amplified through a driving circuit and a data acquisition system;
fifthly, transmitting the amplified electric signals to an upper computer through a USB bus, compiling corresponding software on the upper computer to process, display and store data, and finally obtaining the temperature and the spectral emissivity of the target according to a multispectral algorithm; and finally displayed by an LCD display.
Claims (5)
1. The utility model provides a measuring device of temperature in aluminum alloy hot forming process which characterized in that: the measuring device comprises an objective lens, a collimating objective lens, a grating, a focusing objective lens, a pyroelectric sensor, a driving circuit, a data acquisition system, an LCD and an upper computer; the collimating objective lens receives information of the objective lens, the grating receives information of the collimating objective lens, the focusing objective lens receives information of the grating, the pyroelectric sensor receives information of the focusing objective lens, the driving circuit and the data acquisition system receive information of the pyroelectric sensor, and the upper computer and the LCD receive information of the driving circuit and the data acquisition system;
furthermore, the drive circuit and the data acquisition system include: an amplifier, a filter, an integrator; the signal direction sequentially passes through an amplifier, a filter and an integrator;
the D, S, E electrode of the pyroelectric sensor is respectively used as the drain electrode of a field effect tube of the driving circuit and the data acquisition system, the electric signal output end of the S converted by the pyroelectric detector and the cathode of the field effect tube.
2. The apparatus for measuring temperature during hot forming of aluminum alloy according to claim 1, wherein: the measuring device further comprises a Fresnel optical lens, and the Fresnel optical lens is arranged on a lens of the pyroelectric detector.
3. The apparatus for measuring temperature during hot forming of aluminum alloy according to claim 2, wherein: the pyroelectric sensor is an RE200B dual pyroelectric sensor.
4. The apparatus for measuring temperature during hot forming of aluminum alloy according to claim 3, wherein: the integrator adopts an ICL7106 integral A/D converter.
5. The apparatus for measuring temperature during hot forming of aluminum alloy according to claim 4, wherein: the LCD display consists of a multi-position liquid crystal display driver ICL7106 and a standard section type liquid crystal display EDS 801.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920264957.5U CN210571043U (en) | 2019-03-03 | 2019-03-03 | Temperature measuring device in aluminum alloy hot forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920264957.5U CN210571043U (en) | 2019-03-03 | 2019-03-03 | Temperature measuring device in aluminum alloy hot forming process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210571043U true CN210571043U (en) | 2020-05-19 |
Family
ID=70632296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920264957.5U Active CN210571043U (en) | 2019-03-03 | 2019-03-03 | Temperature measuring device in aluminum alloy hot forming process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210571043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109932063A (en) * | 2019-03-03 | 2019-06-25 | 黑龙江省科学院自动化研究所 | The measuring device and method of temperature in a kind of aluminum alloy heat forming process |
-
2019
- 2019-03-03 CN CN201920264957.5U patent/CN210571043U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109932063A (en) * | 2019-03-03 | 2019-06-25 | 黑龙江省科学院自动化研究所 | The measuring device and method of temperature in a kind of aluminum alloy heat forming process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101943615B (en) | Temperature measuring method based on Raman light reflection | |
| CN105352583B (en) | It is a kind of to measure ultrasonic wave acoustic pressure harmony strong optical means and device and its application | |
| CN102507148B (en) | Detection system of multi-quadrant photoelectric detector | |
| CN109375194A (en) | AFE(analog front end) reading circuit for laser radar | |
| RU177419U1 (en) | Lidar for remote measurement of temperature and humidity with minimal dead zone sounding | |
| CN204009074U (en) | Comprehensive laser radar system | |
| CN102749141A (en) | Radiation temperature measuring method and apparatus for measuring true target temperature | |
| CN106979832A (en) | A kind of optical fibre light splitting temp measuring system and its temp measuring method | |
| CN102080990B (en) | Four-waveband high temperature measuring device and method | |
| CN109932063A (en) | The measuring device and method of temperature in a kind of aluminum alloy heat forming process | |
| CN103528991B (en) | System and method for measuring organic matter content of soil | |
| CN210571043U (en) | Temperature measuring device in aluminum alloy hot forming process | |
| CN102494764B (en) | Low-light detecting method for broad band covering visible light | |
| CN112414561A (en) | High-temperature high-speed thermometer based on colorimetric method | |
| CN105157834A (en) | Spectral data acquisition system based on CCD and photomultiplier | |
| CN105092054A (en) | Testing evaluation device for pyroelectric non-refrigeration infrared focal plane detector | |
| CN105806491A (en) | Three-wavelength two-dimensional temperature field measuring device and method | |
| CN101694466A (en) | Correction method of etalon effect of back lighting type CCD array spectrometer | |
| CN201837484U (en) | Temperature measuring device based on Raman light reaction | |
| CN102620861A (en) | Scaling temperature measuring device in distributed optical fiber temperature sensor | |
| CN206670829U (en) | A kind of optical fibre light splitting temp measuring system | |
| CN112857586A (en) | Infrared temperature measuring device based on fpga and temperature compensation calibration method | |
| CN202814557U (en) | Device for real-time measurement of temperature and spectral emissivity of nontransparent object | |
| CN115790864A (en) | Black body response rate testing device and method | |
| CN206362452U (en) | Response characteristic parameter calibration device for infrared photoelectric detector under weak light condition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |