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公开(公告)号：EP2100131B1
公开(公告)日：2016-11-23
申请号：EP07858772.2
申请日：2007-12-05
申请人： ABB Limited
发明人： HOWELL, Colin , ALBONE, David , COE, David Edward
摘要： A conductivity sensor is described in which electrodes are held in a desired position within a housing of the sensor by a number of slots accurately positioned within the housing. In one embodiment the slots are integrally formed within the housing. Once the electrodes have been inserted into the slots a thermoset resin is poured into the housing and cured. A through bore is then drilled through the housing, the electrodes and the cured resin to form a flow conduit through the sensor. A dual frequency excitation technique is also described that allows a measurement to be obtained of a polarisation resistance of the electrodes. In one embodiment this measurement is stored and used to correct subsequent conductivity measurements.
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公开(公告)号：EP2100131A1
公开(公告)日：2009-09-16
申请号：EP07858772.2
申请日：2007-12-05
申请人： ABB Limited
发明人： HOWELL, Colin , ALBONE, David , COE, David Edward
摘要： A conductivity sensor is described in which electrodes are held in a desired position within a housing of the sensor by a number of slots accurately positioned within the housing. In one embodiment the slots are integrally formed within the housing. Once the electrodes have been inserted into the slots a thermoset resin is poured into the housing and cured. A through bore is then drilled through the housing, the electrodes and the cured resin to form a flow conduit through the sensor. A dual frequency excitation technique is also described that allows a measurement to be obtained of a polarisation resistance of the electrodes. In one embodiment this measurement is stored and used to correct subsequent conductivity measurements.
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