anechoic


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anechoic

 [an-ĕ-ko´ik]
without echoes, such as a room used for hearing tests.

an·e·cho·ic

(an'ĕ-kō'ik),
The property of being echo-free or appearing without echoes on a sonographic image; a cyst filled with clear fluid appears anechoic. See: transonic.
Synonym(s): echo-free
[G. an- priv. + echo + ic]

an·e·cho·ic

(an'ĕ-kō'ik)
The property of appearing echo free on a sonographic image; a clear cyst appears anechoic.
[G. an- priv. + echo + ic]
References in periodicals archive ?
The company also designs automotive on-glass antennas in its anechoic chambers in Japan and the United States, and offers customers on-glass antennas.
In endometritis, presence of anechoic to hyperechoic fluid in the uterus was observed with increase in thickness of endometrium 5.2-7.4 mm while in normal cows, fluid was absent and endometrial thickness was 3.9 mm.
Every chest US demonstrates the inner echo structure from complex septate (a) and nonseptate (b) to anechoic (c) and echogenic (d) pleural effusion.
The gigantic anechoic chamber tests passenger jets from all over the world, as well as planes for the U.S.
Six patients with lower abdominal pain and occasional spotting with negative pregnancy test were subjected for conventional 2 Dimensional trans-vaginal examination with showed an anechoic area in the cervix.
Minimum values of reflection and transmission coefficients are required to improve the anechoic performance of an absorber.
Each type of testing requires different anechoic chambers, i.e., RE testing requires an EMC chamber the performance of which is comparable to the open area test site (OATS), whereas uniformity of the electric field is the main issue for RS testing.
"In the anechoic chamber, you become the sound," he said.
octoScope Inc, a wireless solutions and services company, has launched its new model anechoic octoBox chambers, octoBox Stackable.
"We're creating a state-of-the art anechoic chamber for testing our physical antenna prototypes, but even the best antenna test chambers are limited in their size and shape, the performance of their absorptive materials, and the range of frequencies they can accommodate," Schennum said.
According to the company, the original 160,000-square-foot two-story building, which houses its antenna and video technologies development, product, test facilities and two anechoic test ranges, has been enlarged by nearly 28,000 square feet.
Two ammunition storage bunkers are also being built, and some of the unit's anechoic (sound absorbent) chamber space will also be renovated.