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LABORATORY INSTRUMENTS FOR MEASUREMENTS
OF MAGNETIC PROPERTIES OF ROCKS

JR-6

DUAL SPEED SPINNER MAGNETOMETER


  • MEASUREMENTS OF REMANENT MAGNETIZATION
  • HIGH SENSITIVITY
  • MEASUREMENT OVER
    11 MAGNITUDES (10-6 - 104 A/m)
  • TWO SPEEDS OF ROTATION
  • EASY OPERATION
jr6

General description

This is the most sensitive and accurate instrument for measurement of remanent magnetization of rocks based on classical (non-quantum, non-cryogenic) principles. Its outstanding sensitivity enables even rocks with very weak remanent magnetization to be measured, for example, various sedimentary rocks including limestones and quartzites.

Two rotation speeds are available, the higher one (87.7 rps) enabling the maximum sensitivity to be reached, and the lower one (16.7 rps) enabling the soft specimen to be measured.

Versions

JR-6A

JR-6A (automated) version is destined for rapid and accurate measurement of remanent magnetization. The specimen is manually only inserted into the specimen holder and the instrument automatically changes the sample orientations to obtain the remanence vector.

JR-6

JR-6 version is the non-automated version of the instrument with the same sensitivity and accuracy. It differs only in that the sample's orientation must be changed by hand as with all other magnetometers. According to the accuracy required, one can measure the specimen in two, four or six orientations. Can be upgraded to JR-6A version on-site by AGICO technician.

jr6

Main features

High sensitivity 2.4 x 10-6 A/m
Two speeds of rotation
Automatic change of sample position (JR-6A only)
Triple permalloy shielding of measuring coils
Rapid measurement of remanent magnetization
Sophisticated software support

Technical specifications

Sensitivity 2.4 x 10-6 A/m (high speed)
Measuring range up 12500 A/m
Speed of rotation 87.7 rps and 16.7 rps
Accuracy of absolute calibration ±3 %
Power requirements 100, 120, 230 and 240 V, 50/60 Hz, 40 VA

Specimens to be measured

Cylinder (regularly shaped specimens)
     Diameter 25.4 ± 1 mm
     Length 22.0 ± 1 mm
Cube 23x23x23 mm
20x20x20 mm
 

AGICO, Inc, Brno, Czech Republic

ROCK MAGNETISM MEASUREMENTS WITH TRADITION

Last update >>> 06/2017