New PDM with 79 channels

geometry of PDM79-50The mirror has 79 PZT actuators, with 61 actuators forming a hexagonal grid with 4.7 mm pitch, and 18 actuators placed on a circumference with 21.6 mm radius. Free actuator stroke is approximately 7 µm, the stroke difference between the neighbor actuators reaches 1.5 µm.

The mirror is driven by two 40-ch HV amplifier units, controlled from a computer USB port via two 40-ch 12-bit USB DAC modules.

The case of the mirror has the same sizes as that of 109-ch PDM -- 100x100x60mm. Please download its technical drawing for more details.Front view of 79-channel PDM

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