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一、仪器的用途:该仪器是与功率放大器,悬梁式电磁振动台配套使用的。用于叶片、板材、棒材或其他试件的振动疲劳试验。仪器可根据试验要求给定振幅值,并控制振幅值在试验过程中保持恒定,以使整个系统构成闭环自激系统,使试件保持在自振频率下振动,这样也就有效地利用了功率放大器的输出功率。同时通过光学读数装置和振幅指示表头读出振幅值。本仪器不但可以在常温下控制与测量其试
First, the use of equipment: The instrument is used with power amplifiers, cantilever electromagnetic shaking table. Vibration fatigue test for blades, plates, bars or other test pieces. The instrument can give the amplitude value according to the test requirements and control the amplitude value to be constant during the test so as to make the whole system form a closed-loop self-excitation system so that the test piece keeps vibrating at the natural frequency, thus effectively utilizing the power Amplifier output power. At the same time through the optical reading device and the amplitude indication meter read out the amplitude value. The instrument can not only control and measure the test at room temperature