Magnetic Susceptibility - Quincke's Method @holmarcproducts

Uploaded October 2024 | Updated September 2026, 16 hours ago

Holmarc’s Magnetic Susceptibility - Quincke’s Method Apparatus
(Model No: HO-ED-EM-07) is designed for the determination of
magnetic susceptibility of a given solution. The apparatus consists
of a pair of electromagnets and a Quincke’s tube in which the
sample is taken. This tube is U shaped and has two limbs, one
with very narrow width compared to the other. So, the change in the
level of the liquid in the narrow limb does not affect the level in the
wider limb. The magnetic field is measured using a digital Gauss
meter. In Holmarc’s apparatus, the rise in liquid by the application
of magnetic field is measured using a traveling microscope.
In this apparatus, paramagnetic liquid is used and the
liquid level will rise. The Quincke’s Method is used to determine
magnetic susceptibility of paramagnetic substance in the form of
a liquid or an aqueous solution.

Read more:holmarc.com/magnetic_susceptibility_quinke.php
Download catalogue: holmarc.com/pdf/5_Physics_Instruments.pdf

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$Variable Angle Laser Ellipsometer Ellipsometry is a very sensitive optical technique which provides unequaled capabilities for thin film metrology. Ellipsometry exploits phase information and polarization state of light and so can achieve angstrom level resolution. The main advantages of ellipsometry are its non-destructive character, high sensitivity and wide measurement range. The optical parameters like thickness and refractive indices of a thin film can be determined precisely by this technique. In the ellipsometer model no: HO-ED-P15, an elliptically polarized light is made incident on the test substrate and the reflected light which is linearly polarized is analyzed for polarization changes. The instrument consists of two concentrically rotating arms around a precisely graduated disc fixed to a heavy base. A laser source is held on one arm and the detector assembly on the other arm. The graduated disc has 1 scale and 0.1 resolution achieved through a vernier. Power supplies for laser source and detector are placed separately. Polarizer, analyzer and quarter waveplate are held in precision rotary stages in the optical path with precise graduations having 0-360 range and 0.1 resolution.$

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