Suspension device for a membrane test system
AssigneeNissan North America, Inc.
InventorsGregory James DiLeo, Kevork Adjemian
Life of this patent
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Abstract
Embodiments of suspension clamps for use in testing membrane samples used in fuel cells are provided. One example of a suspension clamp comprises a frame, a clamp member, a plurality of electrodes, and a suspension component. The clamp member is hingedly attached to one end of the frame. Each of the plurality of electrodes extends along a membrane-facing surface of at least one of the clamp member and the frame. A suspension component is attached to at least one of the clamp member and the frame and is configured to suspend the suspension clamp during testing of a membrane sample. The suspension clamp can be used to measure one or more of resistance, impedance, conductance, proton permeability and through-thickness of the membrane sample.
Claims18
A suspension clamp for use in testing a membrane sample, the clamp comprising:
- a frame;
- a clamp member hingedly attached to one end of the frame;
- a plurality of electrodes configured to be connected to a voltage/current source, with each of the plurality of electrodes extending along a membrane-facing surface of at least one of the clamp member and the frame;
- and
- a suspension component attached to at least one of the clamp member and the frame configured to suspend the suspension clamp, wherein the plurality of electrodes is configured such that at least one of the plurality of electrodes contacts one face of the membrane sample and at least another of the plurality of electrodes contacts an opposing face of the membrane sample when the membrane sample is retained by the suspension clamp.
A suspension clamp for use in testing a membrane sample, the clamp comprising:
- a frame;
- a plurality of clamp arms hingedly attached to one end of the frame;
- a plurality of electrodes, with each of the plurality of electrodes extending along a respective one of the plurality of clamp arms such that the plurality of electrodes moves with the plurality of clamp arms when the plurality of clamp arms hingedly move relative to the frame, each of the plurality of electrodes being connected to a lead that extends away from the plurality of electrodes, wherein each of the plurality of clamp arms defines a recess along a surface that faces the frame, with each of the recesses being configured to at least partially receive a respective one of the plurality of electrodes;
- and
- a suspension component from which the frame suspends.
A suspension clamp for use in testing a membrane sample, the clamp comprising:
- a frame;
- a plurality of clamp arms hingedly attached to one end of the frame;
- a plurality of electrodes, with each of the plurality of electrodes extending along a respective one of the plurality of clamp arms and with each of the plurality of electrodes being connected to a lead that extends away from the plurality of electrodes;
- and
- a suspension component from which the frame suspends, wherein the plurality of clamp arms is four clamp arms and respective ones of the plurality of electrodes extend along each of the four clamp arms, with a first two of the four electrodes being configured to pass current and a second two of the four electrodes being configured to measure potential.
Dependencies are inferred from the claim text.