초록 ▼

In order to create a device for testing a membrane electrode assembly, by means of which fabricated membrane electrode assemblies can be tested in a non-destructive manner, a first contact device is provided for bringing a first electrode side of the test object into electrical contact, a second con

In order to create a device for testing a membrane electrode assembly, by means of which fabricated membrane electrode assemblies can be tested in a non-destructive manner, a first contact device is provided for bringing a first electrode side of the test object into electrical contact, a second contact device is provided for bringing a second electrode side of the test object into electrical contact, the first and second contact devices being electrically conductive at least in the contact area, and the first contact device and/or the second contact device having a plurality of electrically conductive contact segments spaced from one another, and a conductivity measuring device is provided for measuring the conductivity of the test object segmentwise in a location-resolved manner.

대표청구항 ▼

That which is claimed: 1. Device for testing a membrane electrode assembly, comprising: a first contact device for bringing a first electrode side of the test object into electrical contact; a second contact device for bringing a second electrode side of the test object into electrical contact; whe

That which is claimed: 1. Device for testing a membrane electrode assembly, comprising: a first contact device for bringing a first electrode side of the test object into electrical contact; a second contact device for bringing a second electrode side of the test object into electrical contact; wherein said first contact device and said second contact device are electrically conductive at least in the contact area; and wherein at least one of said first contact device and said second contact device has a plurality of electrically conductive contact segments spaced from one another; and a conductivity measuring device for measuring the conductivity of the test object segmentwise in a location-resolved manner. 2. Device in accordance with claim 1, wherein the test object and the contact devices are linearly displaceable relative to one another. 3. Device in accordance with claim 1, wherein the test object is transportable between the first contact device and the second contact device. 4. Device in accordance with claim 1, wherein at least one of the first contact device and the second contact device is constructed as transport device for transporting the test object relative to the contact devices. 5. Device in accordance with claim 4, wherein the first contact device and the second contact device are constructed in such a way that the electrical contact is maintained during the transportation movement of the test object. 6. Device in accordance with claim 1, wherein the first contact device comprises a roller. 7. Device in accordance with claim 1, wherein the second contact device comprises a roller. 8. Device in accordance with claim 1, wherein areas which are not in electrical contact with the test object when the contact segments are in contact therewith lie between neighboring contact segments of at least one of the first contact device and the second contact device, the neighboring contact segments being able to be brought into electrical contact with the test object. 9. Device in accordance with claim 1, wherein the contact segments of at least one of the first contact device and the second contact device are spaced in parallel from one another. 10. Device in accordance with claim 1, wherein the contact segments of at least one of the first contact device and the second contact device are spaced uniformly from one another. 11. Device in accordance with claim 1, wherein a contact segment is in the form of a disc or a ring. 12. Device in accordance with claim 1, wherein the contact segments are aligned in parallel with or at a small angle to the direction of transportation. 13. Device in accordance with claim 1, wherein the impedance between the first contact device and the second contact device is determinable segmentwise by means of the conductivity measuring device. 14. Device in accordance with claim 13, wherein an alternating voltage of a certain frequency is able to be preset or an alternating current applied between the first contact device and the second contact device. 15. Device in accordance with claim 1, wherein the direct current resistance or the impedance between contact segments of a contact device is measurable by means of the conductivity measuring device. 16. Device in accordance with claim 1, wherein both the first contact device and the second contact device comprise a roller, the spacing between the axes of the rollers of the first contact device and the second contact device being adjustable. 17. Device in accordance with claim 1, wherein at least one of the first contact device and the second contact device is connected by means of sliding contacts to the conductivity measuring device. 18. Device in accordance with claim 1, wherein the first contact device and the second contact device are provided with contact segments. 19. Device in accordance with claim 18, wherein the impedance between contact segments, spaced from one another transversely to the direction of transportation, of the first contact device and the second contact device is measurable. 20. Device in accordance with claim 1, wherein a switch-over measurement with a charging procedure and a discharging procedure being carried out between a first contact device and a second contact device is performable by means of the conductivity measuring device. 21. Method for testing a membrane electrode assembly, comprising: bringing the test object on a first electrode side into electrical contact with a first contact device which is electrically conductive at least in the contact area; bringing the test object on a second electrode side into electrical contact with a second contact device which is electrically conductive at least in the contact area; wherein at least one of the first contact device and the second contact device is brought into electrical contact with the test object via spaced contact segments; and measuring the electrical conductivity segmentwise in a location-resolved manner. 22. Method in accordance with claim 21, wherein the test object is transported by means of at least one of the first contact device and the second contact device relative to these. 23. Method in accordance with claim 21, wherein an alternating voltage is applied or an alternating current is preset between the first contact device and the second contact device. 24. Method in accordance with claim 23, wherein the impedance between the first contact device and the second contact device is measured. 25. Method in accordance with claim 24, wherein the impedance between contact areas of the first contact device and the second contact device, which lie opposite one another relative to the contact devices in relation to the direction of transportation of the test object, is measured. 26. Method in accordance with claim 24, wherein the impedance between contact areas of the first contact device and the second contact device, which are transversely offset relative to the contact devices in relation to the direction of transportation of the test object, is measured. 27. Method in accordance with claim 21, wherein the direct current resistance or the impedance between contact segments of a contact device is measured. 28. Method in accordance with claim 21, wherein the location of a conductivity measurement on the test object is determined via transportation parameters. 29. Method in accordance with claim 28, wherein in the event one or more transport rollers are used, the location of the conductivity measurement is determined via angular position and angular velocity of the one or more transport rollers. 30. Method for testing a membrane electrode assembly or a membrane for a membrane electrode assembly, comprising: bringing the test object between a first contact device and a second contact device, both of said contact devices being provided with contact segments spaced from one another, said contact segments being electrically chargeable; and charging and discharging respectively associated contact segments of the two contact devices electrically as contact segment pairs, in order to determine dielectric characteristics of the test object between the contact segments of a contact segment pair. 31. Method in accordance with claim 30, wherein the test object is transported between the two contact devices.