Fig. 2: Observation of UAMR during insonication of the build chamber.
From: Direct sound printing
a and b Front and side view of the observation setup which constitutes a high speed and DSLR camera. c and d Acoustic pressure in the build chamber, P, at h = 30 mm and h = 22 mm, respectively. e Footage from high-speed imaging (e1-a to e9-a) of area A and DSLR camera (e1-c to e9-c) for h = 30 mm where the acoustic focal is at the platform location (e1-b to e9-b are the magnified views of e1-a to e9-a, respectively) (DSLR: digital single-lens reflex, PCD: passive cavitation detector, UAMR: ultra-active micro reactor, PDMS: polydimethylsiloxane). f Footage from high speed imaging (f1-12) for h = 22 mm and v = 0. For all cases, f = 2.15 MHz, DC = 100%, and Power = 210 W.
