Article Per Year (5 Year)
p-Index From 2021 - 2026
0
P-Index
This Author published in this journals
All Journal Jurnal Instrumentasi
Adindra Vickar Ega
Pusat Penelitian Metrologi - LIPI Research Center for Metrology - LIPI
Agriculture, Biological Sciences & Forestry Chemistry Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
TAC METHOD TO OVERCOME THE PRACTICAL DIFFICULTY IN THE CALIBRATION OF DWT WITH INSENSITIVE PISTON Adindra Vickar Ega; Rudi Anggoro Samodro
Instrumentasi Vol 43, No 1 (2019)
Publisher : LIPI Press, Anggota IKAPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31153/instrumentasi.v43i1.171

Abstract

The crossfloat (CF) method is well-known for its accurate and reliable results, however the difficulty on performing CF method arises when dealing with insensitive piston of calibrated DWT. In contrary, automatic transducer assisted crossfloat (TAC) method could be implemented since it does not affected by this condition as it advantages. The used of TAC method could avoid up to 0.008% relative error of effective area at zero pressure and at 20 °C (A0,20) and twice higher error distortion coefficient (b) in case of calibrating insensitive piston of DWT. In addition, the TAC method has another advantage that is save time with consistent result because it can be performed automatically. Once should be consider when using TAC method is the accuracy of pressure transducer. In this case study, the existing pressure transducer owned by RCM – LIPI, could be utilized to perform automatic TAC method in lower pressure range down to 2 MPa that below 10% of its maximum scale, to calibrate low accuracy DWT greater than 0.08%.
ANALYSIS ON THE INFLUENCE OF PRESSURE ADJUSTMENT REFERENCE IN PRESSURE GAUGE CALIBRATION BASED ON DKD-R 6-1: 2014 GUIDELINE Adindra Vickar Ega; Rudi Anggoro Samodro
Instrumentasi Vol 41, No 1 (2017)
Publisher : LIPI Press, Anggota IKAPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/instrumentasi.v41i1.82

Abstract

DKD-R 6-1 is a widely used reference document in pressure measuring device (PMD) calibration. However, many of the users do not understand exactly the substance of it. As for example the pressure adjustment during the calibration is based on the reference (STD) reading or the unit under test (UUT) reading, according to the DKD-R 6-1 clause 7 Calibration Method. Therefore, in this research, calibration of barometer as one of PMD, from range 850 hPa to 1050 hPa has been performed to analyze the influence of those two methods to the calibration results and the difficulty or ease in measurement process. The result shows that both methods has different correction of 0,01 hPa, relevant with the uncertainty claim of 0,06 hPa at 850 hPa and 0,05 hPa at 1050 hPa respectively. Measurement by pressure adjustment according to the UUT reading is easier to be performed since UUT has less digit resolution than the reference standard. However, the reading stability of the reference standard needs to be taken into account since it has more digit resolution, in order to get more accurate measurement results. Keywords : barometer, pressure adjustment, DKD-R 6-1, reference standard, UUT
Co-Authors Rudi Anggoro Samodro