PICKUP UNIT FOR MEASURING CELL VOLTAGE

PROBLEM TO BE SOLVED: To provide a pickup unit for measuring a cell voltage capable of simultaneously and easily measuring the voltages of all cells of a fuel cell stack. SOLUTION: This pickup unit for measuring cell voltages comprises a plurality of probes 31 for voltage measurement having a sheath 33, needle-like voltage measuring terminals 32 having a base side stored in the sheath 33 and a tip side projected from the sheath 33, and a spring stored in the sheath 33 and biasing the needle-like voltage measuring terminals 32 against the side faces of the separators 5 of the fuel cell stack 10 by an elastic force. The probes 31 for voltage measurement are arranged in parallel with each other at intervals according to the intervals of the separators of the fuel cell stack 10 so that the tips of the needle-like voltage measuring terminals 32 of the probes 31 for voltage measurement come into contact with the side faces of the separators 5. The unit is installed slidably in a cell stacking direction along a guide rail 41, a sliding member 39 is fixed with a screw 42, and the entire needle-like voltage measuring terminal is biased to the separator side surface by a coiled spring 40.