Journal ArticleDOI
Single-Element Ultrasonic Transducer for Non-Invasive Measurements
TLDR
In this article, a simple, passive, single-element ultrasonic transducer is proposed for non-invasive measurements, operating at different resonant modes allows the adaptation of the emitted sound pattern to various requirements.Abstract:
A simple, passive, single-element ultrasonic transducer is proposed for non-invasive measurements. Operating the transducer at different resonant modes allows the adaptation of the emitted sound pattern to various requirements. The emitted sound field is simulated and experimentally characterized. We demonstrate the suitability of the transducer prototype for non-invasive continuous level measurement in laboratory as well as field environment over an extended level- and temperature range. The measured performance fulfils typical requirements for invasive level sensors. The versatility of the transducer enables its application in a wide range of non-invasive measurements.read more
Citations
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Journal ArticleDOI
Experimental Study on Dispersion Effects of F (1,1) Wave Mode on Thin Waveguide When Embedded with Fluid.
TL;DR: In this paper, the authors report the simultaneous generation of multiple fundamental ultrasonic guided wave modes (L(0, 1, T, 0, 1), and F(1, 1) on a thin wire-like waveguide and its interactions with liquid loading in different attenuation dispersion regimes.
Journal ArticleDOI
Time-resolved imaging of ultrasound waveform with synchronized laser illumination
TL;DR: In this paper , a synchronous time delay technique was proposed to precisely control the illuminating laser pulses and the ultrasonic wave generation to visualize the ultrasound waveform through the Schlieren imaging method.
References
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Book
Ultrasonic Waves in Solid Media
TL;DR: In this article, the theory of elasticity was introduced and basic formulas and concepts in complex variables in the theory and application of wave propagation were discussed. But the authors did not consider the effects of wave scattering on the wave propagation experiments.
Journal ArticleDOI
Density, thermal expansivity, and compressibility of liquid water from 0° to 150°C: correlations and tables for atmospheric pressure and saturation reviewed and expressed on 1968 temperature scale.
TL;DR: In this article, a review is given of the temperature dependence of the density of liquid water from 40" to 150°C and the error in the calculated compressibilities is estimated as 03 X lO-'bar-' at 4'C and as7 X 100°C at 4''C.
Journal ArticleDOI
Non-Intrusive Load Monitoring Approaches for Disaggregated Energy Sensing: A Survey
TL;DR: This paper provides a comprehensive overview of NILM system and its associated methods and techniques used for disaggregated energy sensing, review the state-of-the art load signatures and disaggregation algorithms used for appliance recognition and highlight challenges and future research directions.
Book
Mathematical methods for physicists : a comprehensive guide
TL;DR: This bestselling text provides mathematical relations and their proofs essential to the study of physics and related fields, while retaining the key features of the 6th edition, and providing a more careful balance of explanation, theory, and examples.
Journal ArticleDOI
Bioelectrical Impedance Methods for Noninvasive Health Monitoring: A Review.
TL;DR: The working principles, applications, merits, and demerits of these methods has been discussed in detail along with their other technical issues followed by present status and future trends.