US 12,270,789 B2
Tubular sleeve for measuring the viscoelasticity of a product to be analysed
Marielle Defontaine, Tours (FR); and Hélène Lebertre, Tours (FR)
Assigned to RHEAWAVE, Tours (FR)
Appl. No. 18/004,775
Filed by RHEAWAVE, Tours (FR)
PCT Filed Jun. 30, 2021, PCT No. PCT/EP2021/068086
§ 371(c)(1), (2) Date Jan. 9, 2023,
PCT Pub. No. WO2022/008326, PCT Pub. Date Jan. 13, 2022.
Claims priority of application No. 2007317 (FR), filed on Jul. 10, 2020.
Prior Publication US 2023/0258607 A1, Aug. 17, 2023
Int. Cl. G01N 29/22 (2006.01); G01N 29/34 (2006.01)
CPC G01N 29/222 (2013.01) [G01N 29/223 (2013.01); G01N 29/348 (2013.01); G01N 2291/022 (2013.01); G01N 2291/028 (2013.01); G01N 2291/102 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An acoustic device for localised and contactless measurement of viscoelasticity of a product to be analysed, the acoustic device comprising:
an ultrasonic pulse generator for generating high-frequency ultrasonic pulses;
an ultrasonic receiver for receiving high-frequency ultrasonic pulses generated by the ultrasonic pulse generator; the ultrasonic pulse generator and the ultrasonic receiver being disposed relative to each other such that the high-frequency ultrasonic pulses propagate within the sample to be analysed; and
a tubular connecting sleeve configured to connect together two portions of a pipe in which the product to be analysed is intended to move from one portion to another, the ultrasonic pulse generator and the ultrasonic receiver being mounted on the tubular sleeve, the tubular sleeve comprising a first mounting zone for the ultrasonic pulse generator and a second mounting zone for the ultrasonic receiver, the tubular sleeve being non-anechoic in the first and second mounting zones and, according to a circumferential distribution, anechoic between the first and second mounting zones.