Modal shaker PV-SHK-V1.0

modal shaker
modal shaker
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Description

In order to infer the sample’s frequency response, the shaker stage excites it with up to 1.5 MHz. The shaker stage can be used to mechanically actuate a sample over a wide frequency range. It is based on a fast piezo based actuator mounted in a solid stainless steel housing and driven by the stage controller. To allow a reliable analysis of the dynamic characteristics of the sample, the shaker stage was optimized to deliver a smooth response by minimizing pronounced peaks in its amplitude spectrum. The heart of the shaker stage is a fast piezo actuator that is mounted in a solid stainless Steel housing. The piezo actuator is driven by a power amplifier within the PICOSCALE Vibrometer stage controller. Frequency and amplitude of the drive signal can be set in the control software. Vibrations are only induced at the central 5 mm diameter titanium dise (Figure 1 ). Table 1 summarizes the spécifications of the shaker stage.

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