Development of an Integrated ISFET pH Sensor for High Pressure Applications in the Deep-Sea

reportActive / Technical Report | Accession Number: ADA539206 | Open PDF

Abstract:

The long-term goals of this project are to enable observations of pH in the ocean using sensors deployed on autonomous platforms. These systems will enable robust, basin-scale observations of changing pH driven by natural and anthropogenic processes. Develop a robust and stable pH sensor for deep-sea applications that is based on the Honeywell Durafet Ion Sensitive Field Effect Transistor ISFET. The sensor should operate to depths of at least 2000 m. It should have a precision of plus or minus 0.001 pH and a stability of 0.005 pH over periods up to 5 years throughout the oceanic temperature and salinity range.

Author(s):
Johnson, Kenneth S. ; Gu, Yuandong ; Martz, Todd R. ; Riser, Stephen C.
Author Organization(s):
MONTEREY BAY AQUARIUM RESEARCH INST MOSS LANDING CA
Supplementary Note:
DOI: 10.21236/ADA539206
Pagination:
0006

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
N00014-10-1-0206
Monitor Series:
ONR
 Subject Terms
Joint Capability Areas:
JCA_4.6.1_General Engineering; JCA_4.6_Engineering; JCA_4.7.2_Installation Services; JCA_4.7_Base and Installations Support; JCA_8_Building Partnerships
Modernization Areas:
Autonomy
Communities of Interest:
Sensors
Descriptor(s):
*PH FACTOR, *DETECTORS, DEEP OCEANS, SALINITY, STABILITY, TEMPERATURE, FIELD EFFECT TRANSISTORS
Field(s)/Group(s):
Physical Chemistry, Miscellaneous Detection and Detectors
Keyword(s):
ROBUST, ISFET(ION SENSITIVE FIELD EFFECT TRANSISTOR)
Report Date:
2009 Jan 01
Creation Date:
2011 Apr 06