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LDA5 Alternating Field Demagnetizer

Name: LDA5 Alternating Field Demagnetizer
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Manufactured in the Czech Republic by AGICO s.r.o.

LDA5 Leaflet

LDA5 Manual

System Features:

Computer Controlled Demagnetization / Magnetization Process
Two-axis Tumbling of Specimen
Automatic Positioning for Anisotropy of Remanence
Controlled direct Field Pulses for Environmental Research

The LDA5 Alternating Field Demagnetizer is used to demagnetize rock or soil specimens using the alternating magnetic field method.

The demagnetization process is computer-controlled and fully automatic. Mu-metal shielding provides an effective protection of the specimen from the Earth’s magnetic field. The electrical current for producing the demagnetizing field is generated in such a way that it is free of the higher harmonic components that may produce parastitic magnetization

Main Features of LDA5

Automated, computer-controlled demagnetization process
Demagnetization optionally coupled with JR-6 software
Automatic tuning of alternating field frequency
Demagnetization of tumbling or static specimen
Maximum alternating field up to 200 mT
Four rates of alternating field decrease with time
Three different modes of alternating field

LDA5 Specifications

Specimen Shape	Cube: 20 x 20 x 20 mm Cylinder: 25.4 mm dia., 22 mm height
AF Demagnetizing Field	1 to 200 mT
Power Requirements	120 V / 60 Hz or 230 V / 50 Hz, 400 VA
Dimensions, Mass	Specimen Unit: 110 x 39 x 46 cm, 95 kg Electronic Unit: 47 x 38 x 17 cm, 30 kg

PAM1 Anhysteretic / Pulse Magnetizer

The PAM1 Anhysteretic / Pulse Magnetizer is an optional accessory for the LDA5 AF Demagnetizer. It serves to produce anhysteretic or isothermal magnetization of a rock or soil specimen.
Controlled acquisition of anhysteretic or isothermal magnetization is essential for several rock magnetic identification techniques used in paleomagnetism, rock and environmental magnetism.
Variable length of direct field pulses enables the viscous component of isothermal magnetization to be quantified, which reflect the amount of magnetic particles on the superparamagnetic/stable single-domain boundary.
Automatic specimen positioning facilitates determination of the anisotropy of magnetic remanence which reflect the preferred orientation of magnetic minerals and has become a well-established technique in structural geology as well as in paleomagnetism and environmental research.

PAM1 Specifications

Anhysteretic MagnetizerDirect Magnetizing Field	0 to 500 uT
Pulse MagnetizerDirect Megentizing Field Length of Direct Field Pulses	0 to 20 mT 0.01 to 10 sec
Dimensions, Mass	47 x 38 x 13 cm, 20 kg