| 摘要 |
PURPOSE:To obtain more accurate loss spring constant based on hysteresis energy, by providing a means, which detects a load imparted to a body under test, a means, which detects physical quantity related to the deformation of the body under test due to the load, and the like. CONSTITUTION:A load is imparted to a body under test W, which is mounted on a tester main body 1 by an actuator 3, which is controlled based on the control signal from a control part 2. Said load (p) is detected by a load cell 4 and a load amplifier 5 and supplied to the control part 2. An amount of deformation X of the body under test W caused by the load (p) is detected by a displacement gage 6 and a displacement amplifier 7 and supplied to the control part 2. In this constitution, more accurate loss spring constant based on hysteresis energy can be obtained. |
