| 摘要 |
FIELD: mechanical engineering. ^ SUBSTANCE: bench comprises base provided with vibration generator and loading device. The base also has lever whose one end is pivotally connected with the base and other end is connected with reduction gear and drive through crank and double eccentric. The strain-gage dynamometer underlies the vibration insulation. The seismic sensor is secured to the lever and records the level of the input vibration acceleration. The signals from the pickup and strain-gage dynamometer are fed to the strain-gage amplifier and then to oscilloscope, magnetograph, and computer for processing information obtained. ^ EFFECT: enhanced accuracy and simplified structure. ^ 1 dwg |
