Importance

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Abstract

The invention relates to printed circuit board test devices (1) comprising a support (4) receiving a circuit board (5) by said board's edges, said board being designed to be fitted as needed with electrical or electronic components (20), said devices further comprising at least one needle (15) which is connected to an electrical test device (17) and which shall electrically contact contact areas (21) on the board (5), the needle (15) being obliquely displaceable by a needle drive (13) in the needle direction, the needle drive being adjustable--by at least one holding-fixture drive (8)--in a adjustment plane (7) which is parallel to the circuit board (5), the drives (8, 13) being actuated by a needle control (10) to spatially position the needle tip (18) at a predetermined spatial coordinate, said devices (1) being characterized in that it includes a distance measuring device (25, 13') designed to measure the distance between the adjustment plane (7) and the circuit board (5, 5') at least at one site and to transmit the measured values to the drive control (10), this drive control in turn being designed that, prior to the contacting time at the contact areas (21; 21'), appropriate correction based on the measured distance values, of the spatial coordinates of the contact areas (21, 21') shall be carried out.

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First Claim