Response Characteristics of Two Oxygen Sensors for Oceanic CTDs

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  • 1 Hawaii Institute of Marine Biology, SOEST, University of Hawaii at Manoa, Kaneohe, Hawaii
  • | 2 Oceanography Department, SOEST, University of Hawaii at Manoa, Honolulu, Hawaii
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Abstract

Response characteristics of a microhole potentiostatic oxygen sensor and a Beckman membrane oxygen sensor were measured in a laboratory over temperatures ranging from 1° to 21°C. The response term τ of the microhole sensor changed 1.7-fold over this temperature range, and τ of the membrane sensor changed 1.6-fold. For the microhole sensor, the effect of temperature on τ can be modeled as lnτ+−6.5 + 1618T−1. For the membrane sensor the temperature effect on τ can be modeled as lnτ = −5.8 + 2116T−1, where T is temperature in kelvins.

Abstract

Response characteristics of a microhole potentiostatic oxygen sensor and a Beckman membrane oxygen sensor were measured in a laboratory over temperatures ranging from 1° to 21°C. The response term τ of the microhole sensor changed 1.7-fold over this temperature range, and τ of the membrane sensor changed 1.6-fold. For the microhole sensor, the effect of temperature on τ can be modeled as lnτ+−6.5 + 1618T−1. For the membrane sensor the temperature effect on τ can be modeled as lnτ = −5.8 + 2116T−1, where T is temperature in kelvins.

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