The major concern of this paper is the problem of the retarded readers. They are children whose reading achievement is less than their general measured ability.

 Measures active, reactive, and apparent energies  Current, voltage RMS and instantaneous measurement  Frequency measurement  Ripple-free active energy pulsed output  Live and neutral monitoring for tamper detection  Fast and simple one-point digital calibration over the whole current range  Integrated linear voltage regulators for digital and analog supply  Selectable RC or crystal osc...

For the results presented in my thesis the I-V data was recorded by hand based on measurements taken using hand-held DMMs. This method was slow and made it tedious to record more than a handful of data points. To improve upon this, a software controlled measurement and recording method was developed using LabVIEW and a USB connected data acquisition card (DAQ). Within this method two techniques...

This paper introduces an optical AC voltage sensor based on the transverse Pockels effect. The sensor utilizes a bulk Bi(4)Ge(3)O(12) (BGO) crystal as the sensing element. The measurement principle has been described and prototype of the sensor has been constructed and evaluated. Good linearity and accuracy performance was obtained for AC voltage measurement. The proposed sensor can be thus app...

We experimentally observed laser-induced remote high-voltage discharge triggering between two needle electrodes with half-a-cm spacing. The was initiated by a 744-nm, 90-fs, 6-mJ laser pulse undergoing filamentation in air. For the direct voltage below self-breakdown threshold, of air-gap synchronized 10-Hz repetition rate and occurred 40 80 m propagation path. No guiding observed. registered s...

The present PTB primary standard allows power measurements with a measurement uncertainty of about 2.5 μW / VA (k = 2). It operates at voltages up to 240 V and currents up to 10 A in the frequency range from 16 Hz up to some kHz. This paper gives a short overview of the working principle of the standard and recent improvements. © Metrology Society of India, All rights reserved. 1. Basic Operati...

This paper deals with the measurement of AC corona inception voltage, Vincp, at the tip of a rod electrode using a hemispherically-capped rod-plane electrode configuration for various rod radii with a short air gap. Effects of atmospheric pressure and temperature variation on Vincp are investigated experimentally. An empirical equation for the field form factors of the hemispherically cappe...

An all-digital on-chip delay sensor (OCDS) circuit with high delay-measurement resolution and low supply-voltage sensitivity for efficient detection and diagnosis in high-performance electronic system applications is presented. Based on the proposed delay measurement scheme, the quantization resolution of the proposed OCDS can be reduced to several picoseconds. Additionally, the proposed cascad...

introduction: well type ionization chamber is a measuring device which is used to determine the activity of brachytherapy sources. the chamber has a cylindrical volume in which a cylindrical tube is mounted in the middle of the chamber. for the measurements, the brachytherapy sources are transferred to the middle of the tube. materials and methods: for designing the well type chamber, the measu...