The Design of Automatic System for the Calibration of Testing Temperature Cutter with Thin Film Thermocouple

2016 ◽  
Vol 836-837 ◽  
pp. 552-561
Author(s):  
Yun Xian Cui ◽  
Yang Qi ◽  
Li Ming Guo ◽  
Qi Xiang Zhang ◽  
Ying Jia
Keyword(s):  
Thin Film ◽  
Data Acquisition ◽  
Temperature Measurement ◽  
Cutting Temperature ◽  
Measurement Tool ◽  
Report Generation ◽  
Measuring Device ◽  
Temperature Measuring ◽  
Thin Film Thermocouple ◽  
Data Acquisition Card

In order to get an accurate online measurement for the transient cutting temperature in precision, in an ultra-precision cutting process,a temperature measuring device should be assessed whether it can obtain precise magnitude readings and variables of which are measured accurately. The just produced thin-film thermocouple used to measure tool cutting temperature must be correctly calibrated[3,4] , however traditional calibrating process problems rely on manual operation completely with lots of problems such as low efficiency, high labor intensity and large error. this paper proposes an automatic calibration system for thin-film thermocouple by using temperature measuring furnace, data acquisition card and computer-based software. The system makes an automatically and intelligently calibration process. By using a high-precision data acquisition card and precision amplifier circuit, eight thermocouples can be calibrated at the same time automatically which effectively shortens the calibration time and improves the accuracy. Use temperature metering furnace to control data acquisition. Secondary error from using standard thermocouple and other methods to collect the temperature metering furnace real-time temperature is eliminated. The system software modules consist of data reading, data processing, data display, database operation, data query and report generation module. The experimental results show that nonlinear fitting error is less than 0.6% within the temperature measurement range, which meets the requirement of the secondary precision of thermocouple error. This paper intends to provide a new calibration method for thermocouple temperature measurement tool development and production[7].

Simulation of Thin Film Thermocouple for High Temperature Measurement Applicable to Missiles

2015 ◽  
Vol 65 (5) ◽  
pp. 385 ◽  
Author(s):  
Manoj Kumar Sonker ◽  
M. L. Dewal
Keyword(s):  
Thin Film ◽  
High Temperature ◽  
Temperature Measurement ◽  
Structural Integrity ◽  
Flow Path ◽  
Flowing Fluid ◽  
Measuring Device ◽  
Indirect Determination ◽  
High Temperature Measurement ◽  
Thin Film Thermocouple

<p>Thermocouples have been extensively used for the measurement of temperature since the advent of seebeck effect. Numerous sensors have been developed for temperature measurement, yet measurement of high temperature flowing fluid has been a challenging task. For the measurement of static temperature the measuring device should travel with the fluid at the same speed without disturbing the flow, which is quite unrealistic. So indirect determination of static temperature of flowing fluid is done by using thermocouple exposed into the flowing fluid. Other sensors available for high temperature measurement may lead to problems like resistance in the flow path of fluid which changes the structural dynamics. Thin film thermocouple (TFTC) based on W-W26Re for super high temperature measurement has been investigated which can be used in missiles for surface temperature measurement of nozzle and rocket interior surface. TFTC does not cause disruption in the flow path with maintaining structural integrity. The W-W26Re thermocouple offers advantage of higher seebeck coefficient at high temperature i.e. above 750 K, and usability in vacuum, inert and hydrogen atmosphere. Zirconia Fiber has been proposed as insulation protection material over thermocouple. Modelling and simulation of the TFTC for the temperature range 300 K - 2900 K has been presented. FEA model using PDE has been presented to implement heat equation, current balance  quation, Gauss theorem and Neumann boundary condition. The expected voltage production on exposed temperature gradient has been studied.</p>

scholarly journals STUDI RENCANA ALAT PENGUKUR PANAS PADA MUAI LOGAM

2019 ◽  
Vol 11 (2) ◽  
pp. 1123
Author(s):  
Ulul Ilmi
Keyword(s):  
Temperature Measurement ◽  
Measurement Tool ◽  
Test Results ◽  
Research Activity ◽  
Measuring Device ◽  
Temperature Measuring ◽  
Measuring Devices ◽  
Lcd Display

Measurement is the process of comparing measuring devices against measured objects. For measurement of magnitude, a measurement tool is needed. In this research activity, the object to be measured is the temperature at the metal expansion. To realize this goal, it is necessary to study the temperature measuring device on the metal expansion. The sensor used for temperature measuring devices is LM35 which is equipped by Arduino and LCD. Based on the test results obtained voltage values measured by a multimeter with an LCD display close to 100 percent or about 99.99 percent. With these results, it can be concluded that the temperature measurement meter is in accordance with the expected research objectives.

Development of Multilayer Composition Thin Film Thermocouple Cutting Temperature Sensor Based on Magnetron Sputtering

2009 ◽  
Vol 69-70 ◽  
pp. 515-519 ◽  
Author(s):  
Yun Xian Cui ◽  
Bao Yuan Sun ◽  
W.Y. Ding ◽  
F.D. Sun
Keyword(s):  
Thin Film ◽  
Magnetron Sputtering ◽  
High Speed ◽  
Cutting Temperature ◽  
High Speed Steel ◽  
Plasma Source ◽  
Cutting Edge ◽  
Static Calibration ◽  
Ecr Plasma ◽  
Thin Film Thermocouple

In the paper, a new multilayer composition thin film thermocouple was developed, which can accurately measure the temperature nearby cutting edge in convenient and fast ways. By means of advanced Twinned microwave ECR plasma source enhanced Radio Frequency (RF) reaction non-balance magnetron sputtering technique, SiO2 insulating film, NiCr/NiSi sensor film and SiO2 protecting film were deposited on the surface HSS substrate. Both static calibration and dynamic calibration were completed. The results showed that the sensor had good performance, good linearity, quick dynamic response, response time constant was 12.7ms. The temperature near the cutting edge in cutting process of aluminum alloy was measured by the developed sensor. The bonding strength between multiple layer film and substrate of high-speed-steel met the presupposed demands.

Quality Inspection and Analysis of Workpiece Surface in A3 Steel Machining

2011 ◽  
Vol 55-57 ◽  
pp. 451-455 ◽  
Author(s):  
Qi Yong Zeng ◽  
Kai Wu ◽  
Xiao Feng Zheng ◽  
Ming Zhu
Keyword(s):  
Data Acquisition ◽  
Cutting Force ◽  
Surface Quality ◽  
High Speed ◽  
Cutting Temperature ◽  
Quality Characteristics ◽  
Measuring System ◽  
Time Data ◽  
Data Acquisition Card ◽  
High Speed Data Acquisition

Quality characteristics of steel workpiece and their inspection methods are introduced, and the influencing factors of surface quality are analyzed by quality tools. A set of inspection scheme for cutting temperature and cutting force on-line monitoring is worked out. Thin film thermocouple technology was introduced to measure the dynamic temperature which affects the surface quality characteristics of steel workpieces. A system for measuring cutting temperature and cutting force has been developed. A high speed data acquisition card ADlink PCI-9118HG is used to acquire the temperature and force signals. Simple and friendly human-machine interface was programmed with the application of VC++ technology and Tchart controllor to achieve real-time data acquisition, display and analysis of cutting temperature and cutting force. It was concluded from the experiment that the data acquisition and measuring system is easy and flexible to use.

Study on Automatic Calibration System of Multi-Layered Laminated Thin Film Thermocouple Cutting Temperature Sensor

2012 ◽  
Vol 490-495 ◽  
pp. 3578-3583 ◽  
Author(s):  
Ya Nan Wang ◽  
Dong Ming Li ◽  
Yun Xian Cui ◽  
Rasidi Ibrahim
Keyword(s):  
Thin Film ◽  
Temperature Sensor ◽  
Cutting Temperature ◽  
Technical Characteristic ◽  
Static Characteristic ◽  
Sensor Technology ◽  
Automatic Calibration ◽  
Calibration System ◽  
Thin Film Thermocouple ◽  
Concrete Model

In cutting temperature survey, in order to reflect the temperature change of cutting area accurately, the cutting tool sensor should have good technical characteristic. In this paper, one kind of automatic calibration system has been developed which could be used to investigate the technical characteristic of the multi-layered laminated thin film thermocouple cutting temperature sensor, this system selects Platinum-chip temperature sensor (concrete model: EN60751) as the standard temperature sensor, uses the AD524 precise amplifier chip building amplifying circuit and compiles the software with LabVIEW. This paper intends to investigate the static characteristic of the multi-layered laminated thin film thermocouple cutting temperature sensor system, the result shows that the Seebeck coefficient is 66.9 μV/°C, and the nonlinear error of fitting is smaller than 0.32%. This research has paved the way for future studying of thin film thermocouple cutting temperature sensor technology characteristic.

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