Accuracy of geometric measurement of object environments for robotic vision tasks is of increasing importance as these tasks become more sophisticated. This paper is concerned with the accurate measurement of orientations of lines and planar surfaces from two camera stereo. Most existing stereo algorithms build up geometric descriptions from absolute position information about points. We emphas...

We present a multiport measurement algorithm that uses only conventional in-line calibrations. The algorithm is well suited to performing on-wafer multiport measurements, and can correct with the thru-reflect-line calibration. We demonstrate the algorithm in a four-port measurement system.

A new test & measurement strategy for on-line health monitoring of Mil-Std-1553 data bus is proposed. The method monitors the signal quality at multiple points on the data bus and uses the voltage measurements to detect and locate defects. The on-line monitoring method supports defect detection and location on the main backbone of the bus and in transformer coupled branches. The method does not...

In order to investigate the theory of the time domain reflectometry (TDR) cable length measurement, the transmission line transient analysis iteration formula based on the finite difference time domain (FDTD) is derived based on the transmission line theory. The electromagnetic wave propagation theory and the regular pattern of the TDR signal propagating in cables are studied. The theoretical c...

During the last few years, new synchronization techniques to send data between IC’s at increasingly high datarates have been developed. Some of them rely on digital delay lines. The timing accuracy of the delay lines is crucial for a good functionality of the synchronization mechanism. This paper will present a strategy to measure the tap-delays of a digital delay-line, using the well-known osc...

Water environmental control and process refinement inside a wastewater treatment plant (WWTP) is fundamentally based on sampling, analysis and on-line measurements on water and sludge streams. The problems related to an accurate and reliable control and thus an efficient water protection are addressed in the following. Four different crucial points whenever a sampling and control scheme is plan...