Adapter, power

adapter ring

Inquire Download as PDF

From The Collection Of: Ingenium
Accession Number: 2024.0474
Discipline: Humanities
Classification: Communications, Sound, Microphones, parts & accessories
Artist / Manufacturer: Beachell, M.C., Beachell (manufacturer)
Date / Period: 1970 (creation date); 2024 (collection date); Hydrophone was designed and built between 1970 and 1980. It was subsequently given by Chester Beachell to his niece as a gift in 1994.

L'hydrophone a été conçu et construit entre 1970 et 1980. Il a ensuite été donné par Chester Beachell à sa nièce comme cadeau en 1994. (period)
Place: Ottawa, Ontario, Canada (creation); Canada, Quebec (use)
Description: Power adapter that connects to the power supply. Adaptateur de courant qui ce lien avec le bloc d'alimentation.

Silver metal adapter with small wiring with light grey synthetic coating and a cream coloured prong. The head of this adapter has an adapter to fit into the power supply. Adapteur argenté en métal avec petite corde avec une couche synthétique grise avec un extrémité en couleur crème. La tête de cet adaptateur est conçu pour se lier au bloc d'alimentation.

Engraved on the adapter: " CANNON /. 103CEA XLP - 3 - 1IC "

Appears complete.
History of Use: Used to relay power to the hydrophone and connects to the power supply.

Utilisé pour transpor transmettre de l'énergie à l'hydrophone et est attaché au bloc d'alimentation.
Narrative: The hydrophone No. 20 is one of several hydrophones designed and built by Canadian Chester Beachell, at the NFB in Montreal, between 1970 and 1980. No. 20 is one of the two known surviving examples of Beachell hydrophones. Hydrophone No. 20 is believed to be the last hydrophone Beachell built and represents the culmination of his work developing improved technology for underwater listening and recording. Chester Beachell was a Senior Research Officer, Technical Research Division at the National Film Board from 1951 to 1980. He participated in many projects documenting research expeditions for the NFB. Beachell wrote that “the presence of all this sound in the ‘silent world’ convinced him that he should design and build high quality hydrophones, and a recorder, which could be carried by a diver”. He designed his first experimental hydrophone in November 1970 following a request from Bané Jovanovic, the director of NFB film The Sea. He continued to develop improved hydrophone technology, resulting in underwater recordings that were used in a number of films produced by the National Film Board of Canada.

Early hydrophones were improved for military use, primarily for the purpose of locating submarines and icebergs. Hydrophone arrays, or large groups of hydrophones positioned thousands of miles apart, were also used for navigational purposes and in military tracking and contained pre-amplifiers to limit noise contamination. In addition to military purposes, hydrophones today are used to study marine life and assist in undersea conservation efforts. The ordinary elastic bands, bimorph crystal, and protective grill are indicative of Beachell’s early work and can be seen when looking at Hydrophone No. 20. It is likely made out of “hard duraluminum” which allowed Beachell’s hydrophones to withstand pressures of at least 45atm, a depth of 1500ft and was likely coated in Verithane to protect the silver coating from the salt water.
See Elsewhere: ingenium.ca

?map