-- 作者:爱拼才会赢
-- 发布时间:2009-5-11 15:58:13
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1.The acoustic load consists of a BTE tube (8 mm x 1 mm ID + 28 mm x 1.5 mm ID + 25 mm x 2 mm ID + 18 mm x 3 mm ID) into a 2 cc coupler.
-- 作者:爱拼才会赢
-- 发布时间:2009-5-11 16:00:29
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2.The acoustic load consists of ITE tubing 10 x 1 mm (or 5 x 1.4 mm) and a 2cc volume.
-- 作者:爱拼才会赢
-- 发布时间:2009-5-11 16:02:08
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3.Receivers are usually specified on a 2cc coupler with BTE tubing or ITE tubing. Today there are better representations of the human ear such as the B&K 4157 (IEC-711). In practice the tubing may also be different. For example, in an ITE configuration the tube may be shorter and wider than the 10 x 1 mm used for specifications.