caa a22 4500 467916136 CHVBK 20180406152903.0 cr unu---uuuuu 170328e20061001xx s 000 0 eng 10.1134/S0020441206050162 doi (NATIONALLICENCE)springer-10.1134/S0020441206050162 Resonance sensors for measuring dielectric spectra of liquid crystals in a wide frequency range [Elektronische Daten] [B. Belyaev, N. Drokin, V. Shabanov] Designs of resonance sensors covering a wide frequency range of 1-104 MHz and intended for measuring the dispersion of the permittivity of liquid crystals are proposed. Using an example of a 4-methoxybenzyliden-4′-buthylanilin (MMBA) liquid crystal, it is shown that these sensors are characterized by a high sensitivity and allow measurements of temperature and field dependences of dielectric spectra of samples with volumes of ∼1 mm3. The behavior of dispersion of the MMBA permittivity observed experimentally is described by the Debye equation with a continuous spectrum of relaxation times within a certain range. A numerical method is proposed that allows reconstruction of the relaxation-time distribution function from the measured spectra of the real component of the permittivity. This distribution function represents the features of both the motion of molecules and the processes of intramolecular vibrations of movable fragments. Pleiades Publishing, Inc., 2006 07.07.Df nationallicence 77.84.Nh nationallicence Belyaev B. Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, 660036, Akademgorodok, Krasnoyarsk, Russia aut Drokin N. Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, 660036, Akademgorodok, Krasnoyarsk, Russia aut Shabanov V. Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, 660036, Akademgorodok, Krasnoyarsk, Russia aut Instruments and Experimental Techniques Nauka/Interperiodica 49/5(2006-10-01), 696-702 0020-4412 49:5<696 2006 49 10786 https://doi.org/10.1134/S0020441206050162 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0020441206050162 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Belyaev B. Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, 660036, Akademgorodok, Krasnoyarsk, Russia aut NATIONALLICENCE 700 1- Drokin N. Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, 660036, Akademgorodok, Krasnoyarsk, Russia aut NATIONALLICENCE 700 1- Shabanov V. Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, 660036, Akademgorodok, Krasnoyarsk, Russia aut NATIONALLICENCE 773 0- Instruments and Experimental Techniques Nauka/Interperiodica 49/5(2006-10-01), 696-702 0020-4412 49:5<696 2006 49 10786 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer