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Dr Tasanee PRIRUENROM (Pressure Laboratory, Mechanical Department, National Institute of Metrology (Thailand), Pathumthani, THAILAND 12120)20/05/2015, 14:30Instrumentation, Metrology and StandardsOral presentationThis work presents the method used to determine the vertical gravity gradients at National Institute of Metrology (Thailand), NIMT, using the relative gravimeter Scintrex Autograv CG-5. This value will be used to transfer the absolute gravity from the reference height of an instrument to a new specific position because the reference height of each absolute gravimeter is different depending on...Go to contribution page
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Dr Chatchaval KURUPAKORN (Electrical Metrology Department, National Institute of Metrology (Thailand), Pathumthani, THAILAND 12120)20/05/2015, 14:45Instrumentation, Metrology and StandardsOral presentationThis paper describes how to develop, test and evaluation of an AC High Voltage Measurement System 70 kV with digital technique at NIMT. The purpose of the development is to make national standard more reliable for quality assurance. The AC HV Measurement System consists of a Capacitive-High Voltage divider, Measuring cable and high precision Digital Multi-Meter. Its nominal scale factor is...Go to contribution page
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Dr Chompoonoot HIRUNYAPRUK (Mechanical Metrology Department, National Institute of Metrology (Thailand), Pathumthani, THAILAND 12120)20/05/2015, 15:00Instrumentation, Metrology and StandardsOral presentationDensity meters have been employed to measure the density of liquids and used in many areas such as chemical, petroleum, pharmaceutical and beverage applications. The advantages of density meters over other density measurement devices are their fast measurement, high accuracy and little sample needed. Although high accuracy is one of their major features, the density meters need regular...Go to contribution page
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Mr Wirun Laopornpichayanuwat (Mechanical Metrology Department, National Institute of Metrology (Thailand), Pathumthani, THAILAND 12120)20/05/2015, 15:15Instrumentation, Metrology and StandardsOral presentationDensity of standard weights is one of many parameters that have the influences on the mass determination of the weights. As it is used to calculate the air buoyancy correction, which is an important factor to precisely determine the mass of the weights. According to the International Organization of Legal Metrology (OIML) recommendation R 111-1, 2004(E), there are six accepted methods for the...Go to contribution page
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Dr Sawasdee YORDKAYHUN (Department of Physics, Faculty of Science, Prince of Songkla University, Hatyai, THAILAND 90112)20/05/2015, 15:30Instrumentation, Metrology and StandardsOral presentationShear wave velocity is a fundamental parameter in determining geological structures and soil characteristics for geotechnical and earthquake engineering studies. Shear wave velocity can be obtained from the conventional surface seismic method such that the shear wave is generated by the seismic source and the refracted and reflected energies are recorded by the array of geophones. We report...Go to contribution page
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Jariya Buajarern (National Institute of Metrology (Thailand), Pathumthani, THAILAND 12120), Narin Chanthawong (National Institute of Metrology (Thailand), Pathumthani, THAILAND 12120)20/05/2015, 15:45Instrumentation, Metrology and StandardsOral presentationCylindrical masters such as plug gauges and ring gauges are commonly used in manufacturing process as the physical diameter standard. Diameter of the cylinder is defined in the JIS B 7420 by means of distance between two opposite edges measured by the length measuring instrument. The standard method descried that length shall be measured two directions perpendicular each other in the cross...Go to contribution page
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Dr Mudtorlep Nisoa (Division of Physics, School of Science, Walailak University, Nakhon Si Thammarat, THAILAND 80161)20/05/2015, 16:00Instrumentation, Metrology and StandardsOral presentationRubber block STR20 is a natural rubber product which has highest market need for both locally and internationally. STR20 is used as raw materials for various industries, such as tire, conveyor, elastomeric bearing pad and shockproof rubber case. Drying process is the most important in the rubber block production, which also consume the most of energy use. Typically, the dryers use hot air,...Go to contribution page
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Alex Wong (Bruker Singapore Pte. Ltd., 11 Biopolis Way, #10-10, Singapore 138667)20/05/2015, 16:15Instrumentation, Metrology and StandardsOral presentationIn this presentation, the latest 5-on-1 system for SEM will be introduced. The presentation will focus on the four channel SDD FlatQUAD EDS, XTrace micro-XRF and micro-CT systems, and briefly discuss on the new developments on EBSD and WDS. Quantax FlatQUAD is the EDS microanalysis system based on the revolutionary XFlash® FlatQUAD. This special annular four-channel silicon drift detector...Go to contribution page
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Mr Klitsadee Yubonmhat (Department of Physics, Faculty of Science, Khon Kaen University, 40002, Thailand)20/05/2015, 16:30Instrumentation, Metrology and StandardsOral presentationNMR frequency generator was built using digital frequency generator (PTS310) and AVR microcontroller. The microcontroller was programmed to receive a frequency value from computer. After processing, the microcontroller sent 24 parallel data bits to control the digital frequency generator (PTS310). The frequency value is restricted between 0-16 MHz. It was found that the output frequency can be...Go to contribution page
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