ULTRASONIC LIQUID FLOW CONTROLLER

WIPO Patent Application WO2006004760

A3

An ultrasonic flow meter includes a conduit, a first ultrasonic transducer, a second ultrasonic transducer, and a controller. The first ultrasonic transducer is disposed at a first position about a first portion of the conduit to transmit a first ultrasonic signal and to receive a second ultrasonic signal. The second ultrasonic transducer is disposed at a second position about a second portion of the conduit that is spaced apart from the first position along a length of the conduit to transmit the second ultrasonic signal and to receive the first ultrasonic signal. The controller is configured to cross-correlate the first and second received ultrasonic signals and generate a resulting time-domain signal, analyze the resulting time-domain signal to determine a difference in transit time between the first and second received ultrasonic signals, and calculate a rate of flow of a fluid in the conduit based upon the determined difference.

JP5628185	How to determine the start moment of a cyclically oscillating signal response
WO/2004/101171	NOZZLE FOR DISPENSABLE VISCOUS MATERIALS

URDANETA NELSON (US)
TINT AARON S (US)
DUAN HAO (US)
REDEMANN ERIC J (US)
WACINSKI CHRISTIPHER ANDREW (US)

PCT/US2005/022944

August 17, 2006

June 28, 2005

Click for automatic bibliography generation  

CELERITY INC (US)
URDANETA NELSON (US)
TINT AARON S (US)
DUAN HAO (US)
REDEMANN ERIC J (US)
WACINSKI CHRISTIPHER ANDREW (US)

G01F1/66; G01F1/00

WO2000003205A1

2000-01-20

EP1113247A1	2001-07-04
US5818735A	1998-10-06
EP0312224A1	1989-04-19

View/Download PDF      PDF Help

Previous Patent: TOPICAL COMPOSITIONS FOR ANTI-AGING

Next Patent: APPARATUS FOR ASSAYING FLUOROPHORES IN A CAPILLARY