https://www.nist.gov/publications/accurate-measurements-longitudinal-wave-velocity-iiw-type-clibration-blocks
A proposed ISO standard, based on the draft European standard prEN 12223, specifies that the longitudinal wave velocity in Type 1 Calibtration Blocks shall be m
longitudinal waveaccuratemeasurementsvelocityiiw
https://de.acs-international.com/instruments/transducers/low-frequency-50-to-300-khz/dry-point-contact-transducers/single/s1805/
Niederfrequenter Dry-Point-Contact-Ultraschallwandler zum Senden oder Empfangen der longitudinalen Ultraschallwellen in einem breiten Frequenzbereich von 100...
longitudinal waveultrasonicdpctransducerkhz
https://www.psu.edu/news/clinical-and-translational-science-institute/events/ctsi-berd-webinar-capturing-heterogeneous
Penn State Clinical and Translational Science Institute has announced its Biostatistics, Epidemiology and Research Design (BERD) Research Methods Seminar...
ctsiberdwebinarcapturingheterogeneous