TITLE

An automated susceptometer for the measurement of linear and nonlinear magnetic ac susceptibility

AUTHOR(S)
Bajpai, A.; Banerjee, A.
PUB. DATE
November 1997
SOURCE
Review of Scientific Instruments;Nov97, Vol. 68 Issue 11, p4075
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Focuses on a completely automated alternating current (ac) susceptometer that was constructed to measure phase resolved linear and nonlinear ac magnetic susceptibility. Use of a lock-in amplifier; Temperature-measurement and control unit; Proportional and integral algorithm; Overall sensitivity of the setup.
ACCESSION #
4320574

 

Related Articles

  • Alternators.  // Design News;12/26/94, Vol. 50 Issue 25, p54 

    Presents a list of companies in the United States that manufacture alternators. Includes Advanced Motion Control; Arc Systems Inc.; BF Goodrich Aerospace.

  • Magnetic susceptibility of antarctic glacial marine sediments. Domack, Eugene W.; Ishman, Scott // Antarctic Journal of the United States;1992, Vol. 27 Issue 5, p64 

    Measures the magnetic susceptibility of three piston cores from the Gerlache Strait area of the western Antarctic Peninsula, Antarctica. Development of a method for correlating between ice cores; Sediments logical interpretation of ice cores; Measurement of magnetic susceptibility using a...

  • Variations in loess accumulation rates in the mid-continent, United States, as reflected by... Hayward, Rosalyn K.; Lowell, Thomas V. // Geology;Sep93, Vol. 21 Issue 9, p821 

    Reports on a magnetic susceptibility method that allows the documentation of variations of late Wisconsin loess accumulation rates. Low magnetic susceptibility values; Highly variable values and stratified loess; Soil moisture.

  • Magnetic homogeneity of colossal-magnetoresistance thin films determined by alternating current magnetic susceptibility. Araujo-Moreira, F. M.; Rajeswari, M.; Goyal, A.; Ghosh, K.; Smolyaninova, V.; Venkatesan, T.; Lobb, C. J.; Greene, R. L. // Applied Physics Letters;12/7/1998, Vol. 73 Issue 23 

    We report measurements of the alternating current (ac) magnetic susceptibility, χ[sub ac]=χ[sup ′]+iχ[sup ″], performed on colossal-magnetoresistance (CMR) materials. We have studied thin film samples of La[sub 0.67]Ca[sub 0.33]MnO[sub 3] and Nd[sub 0.7]Sr[sub 0.3]MnO[sub...

  • Exchange fields at rare-earth sites in Rn+1Co3n+5B2n (R=Gd and Dy) compounds. Suzuki, Y.; Ito, T. // Journal of Applied Physics;4/17/1997, Vol. 81 Issue 8, p5141 

    Reports that spontaneous magnetization and paramagnetic susceptibility have been measured for the Rn+1Co3n+5B2n compounds with R=Y, Gd, and Dy and n=1, 2, and 3 in the temperature range from 4.2 up to 1000 K in fields up to 20 kOe. Analysis of data on the Gd system.

  • Beating torque ripple in brushless servos.  // Machine Design;04/17/97, Vol. 69 Issue 8, p118 

    Discusses the need for addressing torque ripple issues when replacing conventional brushed direct current servomotors with permanent-magnet brushless alternating current servomotors in robotic and machine-tool applications. Influence of torque ripple in speed-regulating loops; Source of torque...

  • AC motor flux control. Yohe, Gary // Machine Design;04/17/97, Vol. 69 Issue 8, p124 

    Looks into the potential of flux-vector drives for alternating current (ac) motor control as an alternative for direct current (dc) motors in applications where variable speed and torque control are required. Microprocessor developments that benefit ac motor controllers or drives; Power factor...

  • How to match ac motors and variable-speed drives. Jackson, Stewart; Liggett, Frank // Plant Engineering;Jul2002, Vol. 56 Issue 7, p52 

    Presents the guidelines for selecting and sizing an adjustable frequency drive and alternating current (ac) motor package. Identification of the categories of ac induction motors; Assessment of the speed of the motors; Capabilities of an inverter-duty motors.

  • Efficient ac motors are being ignored.  // ACR News: Air Conditioning & Refrigeration News;Feb2010, Vol. 26 Issue 5, p24 

    The article discusses the report of emb-papst special projects manager Robert Harness on the low acceptance of efficient alternating current motors.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics