Record Details

On the usability of `compensated temperature` output of Honeywell PPTR sensor for coastal oceanographic and limnological studies

DRS at CSIR-National Institute of Oceanography

View Archive Info
 
 
Field Value
 
Title On the usability of `compensated temperature` output of Honeywell PPTR sensor for coastal oceanographic and limnological studies
 
Creator Mehra, P.
Joseph, A.
Desai, R.G.P.
Vijaykumar, K.
Sundar, D.
Tengali, S.
 
Description Usability of the temperature output, primarily meant for temperature-compensation of the pressure output of Honeywell silicon piezoresistive precision pressure transducer (PPTR) for sea-level measurements, is presented. Laboratory calibration in the range 2-50 degrees C against a platinum resistance thermometer showed linear response (typical example : y = 1.02x - 0.40 with R sup(2) = 1). It was found that beyond 15 degrees C, linearity and accuracy are better than 2% and plus or minus 1.5% respectively of the sensor's temperature output. However, the sensor's performance degrades below 15 degrees C. Field inter-comparison measurements from an offshore platform over a period of 36 days (3456 samples) between the temperature outputs of the PPTR and those of Aanderraa current meter's Fenwall GB 32JM19 thermistor probe and NIO water level recorder's YSI thermistor probes were encouraging. However, while the Fenwall GB 32JM19 thermistor probe and the YSI thermistor probes detects changes in temperature with fine resolution, the PPTR's observed temperature resolution is 0.1 degrees C only. As precautionary measures are undertaken as a technical requirement to prevent corrosion and bio-fouling effects at the water inlet of the sensor, the PPTR could be a useful tool for acquisition of long-term temperature measurements with a resolution of 0.1 degrees C, for limited applications at least, from tropical regions where the temperature is in a range in which the sensor has a linear response.
 
Date 2008-05-01T11:58:37Z
2008-05-01T11:58:37Z
2008
 
Type Conference Article
 
Identifier Oceans'08 MTS/IEEE Kobe-Techno-Ocean'08, April 9-11, 2008, Kobe, Japan, 7 pp.
http://drs.nio.org/drs/handle/2264/1068
 
Language en
 
Rights Copyright [2008]. It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice by copyright holder that the rights are voilated then the item would be withdrawn.
 
Publisher IEEE