Method and apparatus for measuring the propagation time of a...

Details Method and apparatus for measuring the propagation time of a... Method and apparatus for measuring the propagation time of a...

2005-01-11

2005-01-11

Nghiem, Michael (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Time duration or rate

C073S861270, C073S861310, C324S617000, C324S640000, C702S079000

Reexamination Certificate

active

06842716

ABSTRACT:
Propagation time Tpof an ultrasound signal between two spaced-apart transducers constituting an emitter and a receiver is measured. The emitter transducer is subjected to an excitation signal of n successive pulses of period Tegiving rise to an ultrasound signal being emitted towards the receiver transducer which receives the ultrasound signal generating and outputting a receive signal. A measurement of an intermediate propagation time Tintis started when the emitter transducer begins to be excited. The receive signal is detected and the oscillations in the receive signal are counted. Measurement of the intermediate propagation time Tintis stopped when an ithoscillation is detected. The propagation time Tpis determined by taking the difference Tint−i×Te. Advantageously, measurement of Tintis stopped for an ithoscillation of the receive signal that corresponds to the receive signal being at a maximum amplitude.

REFERENCES:
patent: 5777238 (1998-07-01), Fletcher-Haynes
patent: 6696843 (2004-02-01), Beneteau et al.
patent: 4017022 (1991-07-01), None
Translation of German Patent No: DE 4017022 A1 (Becker et al.).

Affiliated with

Also associated with

Rating

Method and apparatus for measuring the propagation time of a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for measuring the propagation time of a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for measuring the propagation time of a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3370100