Scheduled System Maintenance:
On Wednesday, July 29th, IEEE Xplore will undergo scheduled maintenance from 7:00-9:00 AM ET (11:00-13:00 UTC). During this time there may be intermittent impact on performance. We apologize for any inconvenience.
By Topic

A high resolution ultrasonic range measurement method using double frequencies and phase detection

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Kimura, T. ; Mitsubishi Electr. Corp., Kanagawa, Japan ; Wadaka, S. ; Misu, K. ; Nagatsuka, T.
more authors

An ultrasonic range measurement method is presented which uses a pair of transmit signals with different frequencies from each other and phase detection of a pair of received signals corresponding to the pair of transmit signals, respectively. Uncertainty of detected phases in relation to integral multiples of 2 π is eliminated using the pair of phases and one of the envelopes of the received signals. High resolution can be obtained since the range is detected based on the information of the phases of the received signals. Experiments were done in air using the frequencies of 180 kHz and 210 kHz, and resolution of 1% of the wavelength corresponding to the frequency of 210 kHz was obtained

Published in:

Ultrasonics Symposium, 1995. Proceedings., 1995 IEEE  (Volume:1 )

Date of Conference:

7-10 Nov 1995