| 摘要 |
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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