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
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.
대표청구항▼
1. 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-fac
1. 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; anda 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. 2. The suspension clamp of claim 1, wherein the membrane-facing surface of at least one of the clamp member and the frame comprises a recess configured to receive a respective one of the plurality of electrodes. 3. The suspension clamp of claim 1, wherein the clamp member comprises a plurality of clamp arms, with at least one of the plurality of electrodes extending along a respective one of the plurality of clamp arms. 4. The suspension clamp of claim 3, wherein each of the plurality of clamp arms comprises a recess configured to receive a respective one of the plurality of electrodes. 5. The suspension clamp of claim 4, wherein each of the recesses is configured to receive the respective one of the plurality of electrodes such that at least one of the plurality of electrodes is flushly mounted with respect to the membrane-facing surface of the clamp member. 6. The suspension clamp of claim 3, wherein the clamp member has a lateral component from which the plurality of clamp arms extend, the lateral component hingedly attached to the frame. 7. The suspension clamp of claim 3, wherein each of the plurality of clamp arms is individually attached to the frame with a respective hinge. 8. The suspension clamp of claim 1, wherein the plurality of electrodes is symmetrically disposed in at least one direction so as to maximize contact between the plurality of electrodes and the membrane sample. 9. The suspension clamp of claim 1, wherein each of the plurality of electrodes is configured to be connected to the voltage/current source with a lead that extends away from the plurality of electrodes. 10. The suspension clamp of claim 9, wherein the leads connected to the plurality of electrodes collectively comprise a wiring harness coupled to the suspension component. 11. The suspension clamp of claim 9, wherein each of the leads is routed away from the clamp member along the suspension component. 12. The suspension clamp of claim 9, wherein each of the leads is configured to connect to a conductivity measurement device. 13. The suspension clamp of claim 1, wherein the clamp member and frame are non-conductive. 14. The suspension clamp of claim 1, wherein the plurality of electrodes is configured to measure one or more of resistance, impedance, conductance, proton permeability and through-thickness of the membrane sample. 15. 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; anda suspension component from which the frame suspends. 16. The suspension clamp of claim 15, wherein the plurality of clamp arms is four clamp arms, with the plurality of electrodes extending along only two of the four clamp arms. 17. 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; anda 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. 18. The suspension clamp of claim 17, wherein the suspension clamp is configured to measure conductivity of the membrane sample in a water-uptake management test system.
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이 특허에 인용된 특허 (5)
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