| http://www.w3.org/ns/prov#value | - For example, the coupling might be through a transformer, such as a 1:1 isolation transformer, an auto transformer or a 1:N isolation transformer, where impedance transformations are desirable.As shown in FIG. 4A, phase shift network 32 has output terminals 40 and 41 which are coupled to the input terminals 42 and 43, respectively, of ultrasound transducer assembly 33.
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