{'fraction_non_alphanumeric': 0.011780104712041885, 'fraction_numerical': 0.0, 'mean_word_length': 5.6521739130434785, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Liquid interrogator for security applications

This paper presents a new technique for dielectric spectroscopy utilizing self-resonance of a solenoid based sensor. The sensor is designed to detect self-resonance frequencies and reflection coefficients of unknown liquid in a plastic bottle. Four types of liquids of interest for airport security purposes and mixed liquids were tested for signatures detection. A statistical classification was prepared to identify liquid based on its self-resonance frequencies and the magnitudes of reflection coefficients at the resonance. Experimental results show that the bottled liquids in the list of interest could be identified accurately from classification. Finite element simulation results match with the experiments.