Results 171 to 180 of about 2,710 (218)

A system for the detection and analysis of ultrasonic calls

Physiology & Behavior, 1982
Abstract An electronic system for the acquisition, display and analysis of ultrasonic calls is described. This system generates output signals proportional to the predominant call frequency which can be recorded in real-time on a polygraph or subjected to detailed analysis by computer. In addition, a frequency-shifted audio output is provided.
D A, Damassa, D K, Clifton, D I, Whitmoyer   +2 more
openaire   +2 more sources

Ultrafast nonlinear ultrasonic measurement using femtosecond laser and modified lock-in detection

Optics and Lasers in Engineering, 2022
Hoon Sohn, Kiyoon Yi, Peipei Liu
exaly  

Ultrasonic Detection of Urethral Calculus

British Journal of Urology, 1985
J, Gammelgaard, S M, Hastak
openaire   +2 more sources

Pipe leakage detection using ultrasonic acoustic signals

Sensors and Actuators A: Physical, 2023
Jai Wan Cho
exaly  

A Review of Laser Ultrasonic Lamb Wave Damage Detection Methods for Thin-Walled Structures

Sensors, 2023
Shanpu Zheng, Chenguang Xu, Guidong Xu   +2 more
exaly  

An Ultrasonic Target Detection System Based on Piezoelectric Micromachined Ultrasonic Transducers

Micromachines, 2023
Lou Liang
exaly  

Ultrasonic Detection of Breast Cancer

Clinical Obstetrics and Gynecology, 1982
openaire   +2 more sources

An Ultrasonic System for Weed Detection in Cereal Crops

Sensors, 2012
Dionisio Andujar, Roland Gerhards, Gerhards Roland   +2 more
exaly  

Silicon wafer crack detection using nonlinear ultrasonic modulation induced by high repetition rate pulse laser

Optics and Lasers in Engineering, 2020
Hoon Sohn, Seung-Woo Kim, Byunggi Kim
exaly  

Ultrasonic detection of combined pregnancies

American Journal of Obstetrics and Gynecology, 1979
openaire   +2 more sources