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Figure 1 | BioMagnetic Research and Technology

Figure 1

From: Characterisation of weak magnetic field effects in an aqueous glutamic acid solution by nonlinear dielectric spectroscopy and voltammetry

Figure 1

Experimental facility. Schematic sketch of the arrangement for the differential NLDS (DNLDS) experiments (left, components not drawn to scale) and photograph of the opened permalloy shielding box with the assembled sample carrier (right): Two arrays of 4 gold electrodes (E 1 , E 2 , length 10 mm, distance 2 mm) each are located in two adjacent perspex cuvettes (C) of 1 × 1 × 4.3 cm, enabling simultaneous acquisition of two liquid samples (used volume 1 ml each) under the same environmental conditions. The cuvettes are enclosed by a tank (T) for providing an Argon protection gas atmosphere. This all is mounted on a socket housing water temperature control and magnetic field monitoring, and is centered inside a cylindrical solenoid (S) consisting of 2 coils with a inner diameter of 16 cm and a height of 7 cm for independent generating the static and the alternating magnetic fields of vertical direction (B). The input signal to the sample is applied by the electrodes labeled "in", the probe signals are taken by the electrodes labeled "out" and connected to preamplifiers with symmetric inputs. The complete arrangement is enclosed by a shielding box of 1 mm Permalloy, which is bonded inside with perspex.

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