This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ranging module,used here for non-contact object detection purpose. The HC-SR04 module includes ultrasonic ...
When a pacemaker's battery gets low, the whole implant typically has to be surgically replaced. Scientists are therefore developing a noninvasive battery recharging system, which utilizes externally ...
A new way of creating specially shaped pulses of ultrasound using light and a 3D printer has been unveiled by Michael Brown and colleagues at University College London. The pulses, which are creating ...
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