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首页> 外文期刊>Review of Scientific Instruments >Note: Reliable low-vibration piezo-mechanical shutter
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Note: Reliable low-vibration piezo-mechanical shutter

机译：注意：可靠的低振动压电机械快门

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摘要

We present a mechanical shutter based on a bending piezo-actuator. The shutter features an active aperture of about 2 mm, allowing for full extinction and lossless transmission of a beam. Acoustic noise and mechanical vibrations produced are very low and the shutter is outstandingly long-lived; a test device has undergone 20 × 106 cycles without breaking. A reflector makes the shutter capable of reliably interrupting a beam with at least 2 W of cw power at 780 nm. The shutter is well suited to create pulses as short as 16 ms, while pulse lengths down to 1 ms are possible. The rise and fall times are approximately 120 µs, with a delay of 2 ms. Jitter stays below 10 µs, while long-term drifts stay well below 500 µs.
机译：我们提出了一种基于弯曲压电致动器的机械快门。百叶窗具有约2毫米的有效光圈，可完全消光并无损传输光束。产生的噪音和机械振动非常低，并且百叶窗使用寿命长。测试设备经过20×10 6 循环而没有破裂。反射器使快门能够以780 nm的cw功率可靠地中断光束。快门非常适合产生短至16 ms的脉冲，而脉冲长度可低至1 ms。上升和下降时间约为120 µs，延迟为2 ms。抖动保持在10 µs以下，而长期漂移保持在500 µs以下。

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