echometry

Noun

1. acoustics;
   • A-men, Ar-men, Am-men, and Ah-men, and every other prefix and accentuation of men, that the love of variety could suggest, or the art of echometry command, were poured forth with a vigor and energy, that common throats...

   1. The art of constructing vaults to produce echoes.

      • Blanc, in his Echometry, at the end of his first book of the sphere, teaches the method of making an artificial Echo. - 1788, John Carter, The Builder's Magazine, page 206:
      • although construction of the Banqueting House began a few months before Jones could have had the benefit of Biancani's echometry, Jones was immersed in the Bitruvian tradition and would have been aware of the importance...
      • But the resulting theoretical formalization, echometry, was foreshadowed by religious and doctrinal considerations that authorized the consideration of acoustics at the level of dogma, as we can see in the sermons of...

   2. A hypothetical science of echos.

      • The science of echometry is a capricious science. The millionaire was disgusted, when his rich ruttish voice failed to produce a response; he was more disgusted on being told that to no one but the little son of his own...
      • In the Harmonie universelle, Marin Mersenne refers to the fable of Pan and Echo in order to introduce the desideratum of a new science of "echometry” (Mersenne 1636: 50–53). - 2022, Dana Jalobeanu, Charles T. Wolfe,...
      • He wrote on the reflective properties of the various conic sections and even fancied a projected discipline of "Echometry," which might cope with such intriguing problems as (1) echoes that could respond up to twe3nty...
2. The scientific measurement of sounds or echoes.
   • It treats of Arithmetic with separate pagination, and is one of the earliest works on commercial arithmetic published in Scotland; the terrestrial glove; the elements of astronomy (p. 54); the principles of geography...

   1. The use of reflected sound waves to measure the shape or movement of objects.

      • In determining dynamic level of liquids in bore-holes by existing methods and apparatus, eg by gas volumes in piping, echometry etc, much time is required together with elaborate apparatus, often yielding unsatisfactory...
      • Lovetskaya (1958) established by echometry that bigeye kilka move away from light with a speed of 7 m/min. - 1975, I. V. Nikonorov, Interaction of Fishing Gear with Fish Aggregations, page 71:
      • Simulation models have been developed, using the data collected on-site during exploratory drilling in the salt deposit, to establish a development project of the cavity shapes obtained successively during solution...

   2. (medicine, ophthalmology) The use of ultrasound echos to make biometric measurements (as opposed to making images, which is called medical ultrasound).

      • The acoustics system design for echometry is significantly different from that of tissue-structure mapping in that diffuse backscatter is essential. - 1992, Robert John Weber, David N. Perkins, Inventive Minds:...
      • Manufacturers of IOLs are of course aware of this fact and determine the A- or ACD constants of their lenses in such a way that optimum results are achieved with contact echometry. - 2004, H. John Shammas, Intraocular...
      • In order to apply echometry to the diagnosis and follow-up of congenital glaucoma, we carried out the following study with normal children with the aim of finding out the values of axial lengths in developing normal...