[John Crombie] had a crack at building one using linear ... between each sensor pair such that each sensor will report an equal mid-range signal with zero mechanical displacement.

Abstract: In this paper, a displacement sensor based on an open-ended step-impedance transmission line is reported. The sensor operates in reflection, and the output variable is the phase of the ...

Abstract: The development of synthetic aperture radar (SAR) interferometry for ground displacement monitoring has led to the ... We specifically develop a general methodology for linear (i.e., ...

This is an Arduino library for SDI-12 communication with a wide variety of environmental sensors. It provides a general software solution, without requiring any additional hardware, to implement the ...

The device uses an ultrasonic sensor to detect nearby obstacles and provides real-time audio feedback, helping users navigate their environment more safely and independently.