Lateral indicator sensor
First Claim
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1. A sensor for sensing an electrochemical parameter of a flowing process material and providing an output representative of the parameter, the sensor comprising:
- a sensor body having an indentation forming an indentation surface recessed from a side surface of the sensor body which opens to receive a portion of the process material; and
a plurality of electrodes extending from the indentation surface into the indentation to form a plurality of electrode surfaces spaced away from the indentation surface for contacting the process material in the indentation.
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Abstract
An electrochemical sensor for measuring an electrochemical parameter such as pH in a flowing liquid has a housing with a lateral cutout or indentation. An indicator electrode and a reference junction extend into the indentation from opposite sides so that they are facing one another and are axially aligned along a common longitudinal axis which is generally perpendicular to the flow of liquid.
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Citations
21 Claims
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1. A sensor for sensing an electrochemical parameter of a flowing process material and providing an output representative of the parameter, the sensor comprising:
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a sensor body having an indentation forming an indentation surface recessed from a side surface of the sensor body which opens to receive a portion of the process material; and a plurality of electrodes extending from the indentation surface into the indentation to form a plurality of electrode surfaces spaced away from the indentation surface for contacting the process material in the indentation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A sensor probe insertable into a flowing process material, the sensor probe comprising:
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a probe body having a distal end for insertion in the flowing process material, a proximal end disposed away from the distal end and connected by a side wall having an indentation forming an indentation surface therein which is spaced away from the distal end; first electrode means disposed in the probe body and extending outwardly from the indentation surface into the indentation; and second electrode means spaced away from the first electrode means and having a reservoir of electrolyte in the probe body and junction means permeable to the electrolyte coupled between the reservoir and the indentation for electrochemically coupling to the process material, the junction means protruding into the indentation. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A sensor comprising:
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an elongated housing having a lateral cutout in a side wall; indicator electrode means supported by the housing and having an active region protruding into the cutout; and reference electrode means supported by the housing and having an active region protruding into the cutout opposite and spaced from the indicator electrode active regions, the active regions being essentially aligned along a common longitudinal axis which is generally parallel to an elongated direction of the housing. - View Dependent Claims (18, 19, 20, 21)
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Specification