ELECTRIC CAPACITOR WITH SYMMETRICAL METAL ELECTRODES PLACED IN CENTRE Russian patent published in 2016 - IPC H01G4/05 H01M4/38 

FIELD: electricity.

SUBSTANCE: device represents an electric capacitor used for impedance spectroscopy of crystals interacting with laser emission. The capacitor frame is formed by two dielectric racks fixed in dielectric plat of the base. Quartz crystal used for operation is placed in the racks. Metal electrodes are placed along length of the crystal in radial planes of the capacitor axis, symmetrically in the centre in regard to the axis, at equal distance from it. Availability of symmetry provides control of uniformity degree for electric field in the crystal by changing number of electrodes in the capacitor. When number of electrodes is more than two, the angles between planes corresponding to the neighbouring electrodes of each capacitor plate are the same. The above layout configuration, small thickness and usage of light-reflecting metal for electrodes minimize share of emission absorbed or scattered by them. The electrodes play the role of effective radiator promoting controlled and uniform cooling of the crystal. Better conditions for the crystal cooling are obtained by usage of a bigger number of electrodes in the capacitor.

EFFECT: improved accuracy of temperature measurement for the surveyed crystal and improved conditions of the crystal cooling.

2 cl, 4 dwg