Hardware

AUTD3 Device

The AUTD3 device consists of 249 transducers per unit¹. Furthermore, multiple devices can be connected and expanded via daisy-chain. From the SDK, the phase/intensity of all these transducers can be individually specified.

The coordinate system of AUTD3 adopts the right-handed coordinate system, with the center of the 0-th transducer as the origin. The x-axis is in the long axis direction, i.e., the direction from 0 to 17, and the y-axis is in the direction from 0 to 18.

Also, the unit of distance is mm. The transducers are arranged at intervals of $10.16\mathrm{mm}$, and the size including the board is $192\mathrm{mm}\times 151.4\mathrm{mm}$.

Setup

Connect the PC and “EtherCAT In” of the first device with an ethernet cable (CAT 5e or higher), and connect “EtherCAT Out” of the $i$-th device to “EtherCAT In” of the $(i+1)$-th device.

The power supply for AUTD3 uses a $24\mathrm{V}$ DC. The power supply can be connected mutually, and any of the three power connectors can be used. The power connector on the AUTD3 device side uses Molex 5566-02A.

NOTE: AUTD3 consumes a maximum of $2\mathrm{A}$ per device. Pay attention to the maximum output current of the power supply.

Dimension Diagram

1. Out of $18\times 14=252$, 3 transducers are removed for screws. The reason for placing the screw holes in this position is to minimize the gap when multiple units are lined up. ↩