| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique whereby a required time for self diagnosis and calibration can be shortened. SOLUTION: There are provided a multi-channel high accuracy voltage- measuring device 100 having two measurement channels, and a diagnosis analog route 4 for connecting respective analog unit/pin electronics 22a of test heads 2a and 2b with the multi-channel voltage-measuring device. The multi-channel voltage-measuring device measures output voltages of the analog unit/pin electronics of the two heads in parallel via the diagnosis analog route.
|
