| 摘要 |
PROBLEM TO BE SOLVED: To provide a brake testing device capable of performing a braking test with a high accuracy even in a brake device requiring a braking test at a low operation pressure. SOLUTION: The brake testing device comprises a second amplifying circuit 30 at the rear stage of strain amplifiers 13 and 14 as a first amplifying circuit for amplifying the detected operation pressure of the brake device 25, and a changeover switch 33A for switching the second amplifying circuit 30 between insertion and un-insertion to a line at the rear stage of the strain amplifiers 13 and 14. COPYRIGHT: (C)2006,JPO&NCIPI
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