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.

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].

scholarly journals An Evaluation of Body Temperature Measurement

1983 ◽  
Vol 11 (1) ◽  
pp. 31-39 ◽  
Author(s):  
A. H. Ilsley ◽  
A. J. Rutten ◽  
W. B. Runciman
Keyword(s):  
Body Temperature ◽  
Temperature Measurement ◽  
Reference Value ◽  
Temperature Measurements ◽  
Axillary Temperature ◽  
Measuring Device ◽  
Temperature Measuring ◽  
Measuring Devices ◽  
Bladder Temperature ◽  
Body Temperature Measurement

The accuracy of routine body temperature measurements, the suitability of various sites for such measurements, and the performance and practicality of various temperature measuring devices were studied. Oral and axillary temperature measurements made by the nursing staff were within 1°C of a reference value (within 0.5 °C in 67%). Both sites were suitable for routine ward temperature measurement. Mercury-in-glass thermometers are recommended for routine ward use. Electronic and disposable chemical thermometers cost more but the latter are suitable in uncooperative patients and children. Forehead skin temperature measurements using liquid crystal plastic discs were unreliable. Pulmonary artery and rectal temperature measurements were satisfactory in operating theatre and intensive care unit; however, electronic thermometers should be subjected to routine checks. The bladder temperature measuring device proved unsuitable for clinical use. When oesophagus, nasopharynx and tympanum sites are used careful placement is necessary to minimise trauma and obtain reliable measurements.

scholarly journals Analysis and research of methods of linearization of the transfer function of precision semiconductor temperature sensors

2020 ◽  
Vol 21 (4) ◽  
pp. 737-742
Author(s):  
O. V. Boyko ◽  
Z. Y. Hotra
Keyword(s):  
Measurement Error ◽  
Transfer Function ◽  
Temperature Measurement ◽  
Conversion Factor ◽  
Temperature Sensors ◽  
Nonlinearity Error ◽  
Temperature Measuring ◽  
Quadratic Component ◽  
Measuring Devices ◽  
Precision Temperature

The analysis of the nonlinearity of the transfer function of primary temperature transducers based on transistor structures has been performed. It’s shown that the quadratic component of the transfer function creates a significant nonlinearity error up to 0,2-0,6°C. We have developed methods of linearization based on both the formation of compensatory measuring current and change of the conversion factor of the output scaling amplifier at certain ranges of temperature measurement, which ensure their use in precision temperature measuring devices. The measurement error does not exceed 0.01°C in the range of 30-100°C.

scholarly journals Learning Assessment With Portofolio

2020 ◽  
Vol 1 (3) ◽  
pp. 110-117
Author(s):  
Nurhasan Nurhasan
Keyword(s):  
Multiple Choice ◽  
Learning Goals ◽  
Learning Assessment ◽  
Measurement Tool ◽  
Performance Task ◽  
Measuring Device ◽  
Measuring Devices ◽  
Measurement Tools ◽  
Key Word ◽  
And Performance

To find out the competencies a person has, we need a tool called evaluation. There are two things that need to be distinguished in evaluation, the meaning is measurement and assessment or interpretation. To be able to measure correctly, you need the correct measurement tool too. The correct measuring device must meet several requirements, including: valid,reliable, and practical. There are several types of measuring devices. In addition there are subjective measurement tools (essays), objectives (multiple choice, matchmaking, short content, and right-wrong), and performance, now it is beginning to be known as portfolio measurement tools. The portfolio is a collection of the work of a student as a result of carrying out a performance task, which is determined by the teacher or by students with the teacher, as part of an effort to achieve learning goals, or achieve competencies specified in the curriculum. Key Word : Learning, Assessment, Portofolio

Total Temperature Measurement of Gas at Microtube Outlet

2017 ◽  
Author(s):  
Takeya Sakashita ◽  
Chungpyo Hong ◽  
Yutaka Asako
Keyword(s):  
Glass Fiber ◽  
Temperature Measurement ◽  
Outer Diameter ◽  
Temperature Measuring ◽  
Measuring Devices ◽  
Polystyrene Tube ◽  
Measuring Tube ◽  
Total Temperature ◽  
Inner Diameter ◽  
Thomson Coefficient

This paper describes experimental results on the total temperature measurement of gas at the microtube exit. In order to measure the total temperature at the microtube outlet, two total temperature measuring devices with different structures were fabricated. One is six plastic baffle plates embedded inside with a thermally insulated exterior foamed polystyrene tube. The other is two glass fiber thimbles embedded inside it. The gas velocity was reduced by the plastic plates and the glass fiber thimbles, and the kinetic energy was converted into thermal energy. The fundamental premise of the total temperature measurement is the Joule Thomson effect present in real gases, which for a positive of the Joule Thomson coefficient involves the decrease in temperature when the gas experiences isenthalpic expansion. A PEEK microtube whose nominal inner diameter and outer diameter were 500 μmm and 1.6 mm, was used for assessing exact measurement of total temperature in the temperature measuring tube, since the thermal conductivity of the PEEK tube is very low. The measured total temperatures were compared with those obtained theoretically with the Joule Thomson coefficient and given thermodynamics properties.

scholarly journals Temperature Measurement at Curved Surfaces Using 3D Printed Planar Resistance Temperature Detectors

Electronics ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1100
Author(s):  
Adam Steckiewicz ◽  
Kornelia Konopka ◽  
Agnieszka Choroszucho ◽  
Jacek Maciej Stankiewicz
Keyword(s):  
Temperature Measurement ◽  
Fused Deposition Modeling ◽  
Numerical Models ◽  
Elastic Base ◽  
Measuring Device ◽  
Fused Deposition ◽  
Influence Of Temperature On ◽  
Printed Sensors ◽  
Analytical Formulae ◽  
3D Printed

In this article, novel 3D printed sensors for temperature measurement are presented. A planar structure of the resistive element is made, utilizing paths of a conductive filament embedded in an elastic base. Both electrically conductive and flexible filaments are used simultaneously during the 3D printing procedure, to form a ready–to–use measuring device. Due to the achieved flexibility, the detectors may be used on curved and irregular surfaces, with no concern for their possible damage. The geometry and properties of the proposed resistance detectors are discussed, along with a printing procedure. Numerical models of considered sensors are characterized, and the calculated current distributions as well as equivalent resistances of the different structures are compared. Then, a nonlinear influence of temperature on the resistance is experimentally determined for the exemplary planar sensors. Based on these results, using first–order and hybrid linear–exponential approximations, the analytical formulae are derived. Additionally, the device to measure an average temperature from several measuring surfaces is considered. Since geometry of the sensor can be designed utilizing presented approach and printed by applying fused deposition modeling, the functional device can be customized to individual needs.

scholarly journals Development of a Data Acquisition and Monitoring System Based on MODBUS RTU Communication Protocol

2020 ◽  
Vol 5 (6) ◽  
pp. 433-440
Author(s):  
H.M.K.K.M.B. Herath ◽  
S.V.A.S.H. Ariyathunge ◽  
H.D.N.S. Priyankara
Keyword(s):  
Data Acquisition ◽  
Communication Protocol ◽  
Harmonic Distortion ◽  
Computer Application ◽  
Test Results ◽  
Time Data ◽  
Measuring Device ◽  
Soft Starter ◽  
Function Code ◽  
Data Acquisition Process

MODBUS is a serial communication protocol use in industry, which developed by Modicon in 1979. The most common usage of the MODBUS communication protocol is the Programmable Logic Controllers (PLC). The aim of this study is to develop a system for acquiring and analyze measured values from the power measuring device and display them on C# developed GUI. The main objective is to develop an algorithm for MODBUS RTU communication protocol for data acquisition process. In this study, a single power measuring device was used with the aid of MODBUS RTU and RS-485 communication protocols, and data shown in the device was visualized on the C# developed GUI application and analyze them according to the user’s requirement. Data acquisitions from the holding registers were made by using the MODBUS Function Code three. The test results were observed and verified accuracy by performing several trials. Data was collected from the power measuring device which was attached to the industrial soft starter panel of a milling machine. Voltage, Current, Total Harmonic Distortion and Power Factor for each phase were retrieved to the C# devolved computer application and verify results with the real-time data of the power measuring device.

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