A new transmission TDS method for permittivity measurements using the linear dependence of the attenuation coeffrcient and the phase coefficient with sample length is descriied. Experimental resuks for methanol in carbontetrachloride at room temperature are reported.
A thin sample transmission method in dielectric time domain spectroscopy
โ Scribed by B. Gestblom; E. Noreland
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 223 KB
- Volume
- 68
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
A simple relation, \xhich gives the permtttivity ztn~l~ticdly. is derived to approximate the transcendenta equation in the totaf transmission method in dielectric time domain spectroscopy_ The limits for the appliubility of the method are dis-cussed_ Results are given for I-butsnol and 3-propanoL
๐ SIMILAR VOLUMES
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k simple physical picture is given of Fellncr-Feldegg's thin celi method in time dokin spectsoscapy. From this pic!ure an accurate analytical relstion is derived for the total reflection coefficient.
The method of reflection against a sample and short in &electric time domain spectroscopy (TDS) is d&usse& It is shown how, by a proper choice of sample lengths, the method can be used to reach even the high-frequency end of the spectxum accessible by TDS. Results for test measurements on benzyl alc
A theoretical analysis is presented of the lumped capacitance method and its small capacitance approximation using a Debye dielectric permittivity relation and low frequency conductivity. The influence of fringing fields are discussed. The results of the small capacitance method are compared with t