A High-precision Digital Measurement System Design based on PSR

Developing a Method for Increasing Accuracy and Precision in Measurement System Analysis: A Fuzzy Approach

Measurement systems analysis (MSA) has been applied in different aspect of industrial assessments to evaluate various types of quantitative and qualitative measures. Qualification of a measurement system depends on two important features: accuracy and precision. Since the capability of each quality system is severely related to the capability of its measurement system, the weakness of the two...

A high precision 3D dynamic measurement prototype system based on color-coded fringe and phase shifting

Accurate dynamic measurement of the 3-D shape of moving objects is a rapidly expanding field, with applications in entertainment, design, and manufacturing. In this work, the two CCD/CMOS cameras are calibrated with a flexible and accurate camera calibration method. Then, a new approach based on color-coded fringe is proposed for high precision 3D dynamic measurement. The method is based on pha...

Hematocrit Measurement – A high precision on-line measurement system based on impedance spectroscopy for use in hemodialysis machines

This paper presents a unique technical approach to measure the proportion of blood volume occupied by red blood cells, the hematocrit value (HCT) on-line and in-line. A practical method has been developed to measure without the need for extracting blood samples out of an existing extracorporeal blood circulation system. The new sensor is based on Impedance Spectroscopy and measures electrical p...

6 High - Precision Frequency Measurement Using Digital Signal Processing

High-Precision Frequency Measurement Using Digital Signal Processing

High-precision frequency measurement techniques are important in any branch of science and technology such as radio astronomy, high-speed digital communications, and highprecision time synchronization. At present, the frequency stability of some of atomic oscillators is approximately 1E-16 at 1 second and there is no sufficient instrument to measure it (C. A. Greenhall, 2007). Kinds of oscillat...