An ultrasonic echo has more pieces bouncing back, which offer more spatial information for the brain to parcel. Bats can perceive differences as small as 6 mm – or the thickness of three nickels ...

As you might have noticed, the most popular version of the module (comprised of an ultrasonic transmitter, ultrasonic receiver, and control electronics) has four interface pins — Vcc (5 V), Gnd (0 V), ...

Figure 1. Ultrasonic testing using pulse echo and through-transmission methods. Pulse echo (left and center) uses a transducer that sends and receives ultrasound energy, producing both A- and B-scan ...

Bats navigating cluttered environments distinguish between echoes elicited by two closely successive broadcasts by focusing on the lowest frequencies, a study finds. Bats locate objects by ...

Ultrasonic sensor to check level of water in dams. Jisha Surya / TNN / Updated: Feb 16, 2018, 00:11 IST. ... said that the device sends ultrasonic pulse echo of the frequency 40khz.

Several ultrasonic-wave-emitting buoys deployed in the Newark-owned Echo Lake Reservoir have cut blue-green algae levels by 50%, officials say.

Motion analysis of the foot was performed using an ultrasonic pulse-echo-based measurement system. The orientation of the STA was expressed by two angles. Results The mean inclination angle was 42±16° ...