Ultrasonic camera

Details Ultrasonic camera Ultrasonic camera

1984-04-19

1986-04-15

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

73606, G01N 2900

Patent

active

045819360

ABSTRACT:
A camera includes a transmitter (2), an imaging system (8) for an object (4) and a receiver (10). According to the invention, in order to adjust the output signal (V.sub.2) of the receiver (10), a feedback is provided from the receiver (10) to the transmitter (2). The receiver includes a comparator (22) to one of whose inputs the spectrum of the actual values is fed in each case as a rectified output signal (V.sub.2) of the receiver (10) and to whose other input are fed corresponding reference values, and which controls the spectrum of the transmitter voltage (V.sub.1) of the transmitter (2) according to the deviation. By means of this feedback it is ensured that the same center frequency is always obtained at the receiver (10). As a result, the ultrasonic image is independent of the attenuation of signal caused by the object (4) and, accordingly, always has the same resolution even for different objects.

REFERENCES:
patent: 3937066 (1976-02-01), Green et al.
patent: 4057049 (1977-11-01), Hill
patent: 4364273 (1982-12-01), Redding
patent: 4442713 (1984-04-01), Wilson et al.

Affiliated with

Also associated with

Rating

Ultrasonic camera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ultrasonic camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasonic camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1432188