Handheld-Impedance-Measurement System With Seven-Decade Capability and Potentiostatic Function

Automotive Body Measurement System Capability

A Cell Impedance Measurement System

A cell-impedance measurement system is presented that can measure an effective parallel resistance and capacitance of a cell to within 1% in 1ms. It is proven to be functional at ten logarithmically-spaced frequencies between 100 kHz and 100 MHz, with ten parallel structures simultaneously calculating each of these. This system is further shown to be implementable with commercial parts – namely...

Optical Communication System with Range and Attitude Measurement Capability

A formation optical range and attitude sensor is being developed that uses a laser beam source and a modulated retro-reflector (MRR) target to measure distances between a few meters and a few kilometers with sub-millimeter resolution. Data extracted from multiple MRR targets on a single spacecraft will also provide arcminute-accuracy attitude information with over a ±10-deg field of view. Infor...

Programmable Digital Bio-Impedance Measurement System

The field programmable gate array is the fastest growing technology. The bio-impedance measurement system is implemented in reconfigurable field programmable gate array hardware. The design of bio-impedance measurement system using Xilinx system generator is more convenient and cheaper for revising, if the Bio-impedance measurement system requires parameters changes in practical use, since no n...

Automatic compensation system for impedance measurement

This paper deals with the realization of the four-pair terminal definition of impedance standards. A simple, though reliable, system is described that allows an automatic compensation of the voltage at the low potential port of impedance standards to be obtained. Such a system employs a commercial data acquisition board and a signal generator with adjustable-phase capability, which acts as the ...