High-resolution multidimensional displacement monitoring system

High-Resolution Low-Latency Capacitive Displacement Sensor

This paper addresses the challenges related to the design of a high-resolution, low-latency capacitive displacement sensor. An auto-alignment mechanism of the sensor head is proposed which relaxes the resolution requirement of the readout circuit. Different interfacing principles are investigated and analyzed, and the advantage of using a switched-capacitor readout topology for a specific appli...

Integration of High-Resolution Laser Displacement Sensors and 3D Printing for Structural Health Monitoring

This paper presents a novel experimental design for complex structural health monitoring (SHM) studies achieved by integrating 3D printing technologies, high-resolution laser displacement sensors, and multiscale entropy SHM theory. A seven-story structure with a variety of composite bracing systems was constructed using a dual-material 3D printer. A wireless Bluetooth vibration speaker was used...

High resolution displacement monitoring of a slow velocity landslide using ground based radar interferometry

Very High Resolution Parametric and Non- Parametric Sartomography Methods for Monitoring Urban Areas Structures

Synthetic Aperture Radar (SAR) is the only way to evaluate deformation of the Earth’s surface from space on the order of centimeters and millimeters due to its coherent nature and short wavelengths. Hence, by this means the long term risk monitoring and security are performed as precisely as possible. Traditional SAR imaging delivers a projection of the 3-D object to the two dimensional (2-D) a...

High-Resolution Displacement Sensor Using SQUID Array Amplifier

We describe the design and operation principle of a new displacement sensor with a substantial improvement in resolution over what is currently possible. The potential for significant improvement in the measurement of displacement has profound implications for several high-impact gravitational physics and particle physics projects: the detection of gravitational waves, the test of the equivalen...