TITLE

Self-integrating inductive loop for measuring high frequency pulses

AUTHOR(S)
Rojas-Moreno, Mónica V.; Robles, Guillermo; Martínez-Tarifa, Juan M.; Sanz-Feito, Javier
PUB. DATE
August 2011
SOURCE
Review of Scientific Instruments;Aug2011, Vol. 82 Issue 8, p085102
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
High frequency pulses can be measured by means of inductive sensors. The main advantage of these sensors consists of non-contact measurements that isolate and protect measuring equipment. The objective of this paper is to present the implementation of an inductive sensor for measuring rapidly varying currents. It consists of a rectangular loop with a resistor at its terminals. The inductive loop gives the derivative of the current according to Faraday's law and the resistor connected to the loop modifies the sensor's frequency response to obtain an output proportional to the current pulse. The self-integrating inductive sensor was validated with two sensors, a non-inductive resistor and a commercial high frequency current transformer. The results were compared to determine the advantages and drawbacks of the probe as an adequate inductive transducer.
ACCESSION #
65108915

 

Related Articles

  • In situ measurement of gas composition changes in radio frequency plasmas using a quartz sensor. Suzuki, Atsushi; Nonaka, Hidehiko // Review of Scientific Instruments;Sep2009, Vol. 80 Issue 9, p095109 

    A simple method using a quartz sensor (Q-sensor) was developed to observe gas composition changes in radio frequency (rf) plasmas. The output depends on the gases’ absolute pressure, molecular weight, and viscosity. The pressure-normalized quartz sensor output depends only on the...

  • Electrical System Protection for Worker Safety. Glenney, Jeff // Rock Products;Jan2012, Vol. 115 Issue 1, p50 

    The article discusses how to determine if an electrical system is safely grounded. The neutral point of the three-phase transformer flowing the system is connected to earth ground. Electrical systems that are ungrounded can be subject to high-voltage electrical transients that can harm...

  • A NOVEL COMPACT DUAL-FREQUENCY COUPLEDLINE TRANSFORMER WITH SIMPLE ANALYTICAL DESIGN EQUATIONS FOR FREQUENCY-DEPENDENT COMPLEX LOAD IMPEDANCE. Yongle Wu; Weinong Sun; Sai-Wing Leung; Yinliang Diao; Kwok-Hung Chan // Progress in Electromagnetics Research;Mar2013, Vol. 134, p47 

    In order to perfectly match arbitrary frequency-dependent complex load impedances at two uncorrelated frequencies, a novel coupled-line impedance transformer without transmission-line stubs is proposed in this paper. This transformer mainly features small size, wide bandwidth, simple analytical...

  • For Just Pennies, Boost Current From Negative Linear Regulator. Olson, Chad L. // Electronic Design;11/25/2002, Vol. 50 Issue 25, p71 

    Focuses on the role of a pass transistor and associated resistors in increasing load in a negative linear regulator. Connection of SET terminal to the ground keys; Reduction of power dissipation; Prevention of oscillation.

  • Current-sensing scheme improves PFC on/off sequences. Travis, Bill // EDN Europe;Jul2002, Vol. 47 Issue 7, p47 

    Focuses on the improvement of power factor correction on and off sequences in current-sensing scheme. Benefits of semiconductors; Phases of the boost structure; Modification of current-sensing resistor placement.

  • Switching regulator forms constant-current source. Strozecki, Stefan // EDN;5/30/2002, Vol. 47 Issue 12, p92 

    Discusses the problem on using a linear regulator in high current source because of the high power dissipation in the series resistor. Importance of good common-mode rejection and a wide common-mode voltage range; Dependence of the required gain on the output current needed; Overall gain of the...

  • AN OVERLOOKED CLASS OF N-WAY POWER DIVIDERS COMBINING RESISTIVE AND REACTIVE DIVIDERS. Chapell, Harry // Microwave Journal;Jun2010, Vol. 53 Issue 6, p88 

    An overlooked class of in-phase, equal power split, N-way power dividers combines resistive and reactive dividers. This "partial resistive divider" (PRD) has a series input transformer similar to reactive dividers and series resistors at the output ports similar to resistive dividers. In...

  • Modeling and Simulation of the Thermal Drift Characteristics of the Piezoresistive Pressure Sensor. Otmani, R.; Benmoussa, N. // International Review of Physics;Apr2010, Vol. 4 Issue 2, p91 

    Piezoresistive pressure sensors based on Silicon have a large thermal drift because of their high sensitivity to temperature (ten times more sensitive to temperature than metals). So the study of the thermal behavior of these sensors is essential to define the parameters that cause the drift of...

  • Data acquisition unit measures current.  // Electronics Weekly;1/28/2004, Issue 2131, p36 

    MultiLog is a general purpose, four channel data acquisition module for laboratory or field measurement applications manufactured by Nicon. The module comes with a choice of ten programmable voltage ranges and true differential or unipolar inputs. Onboard shunt resistors extends its capabilities...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics