Chain type and pitch. . . Sprockets are designed for use with a specific chain. All chains are made to a given standardâwith ANSI being the most common in the U.S. Each chain is identified by âpitch,â which refers to the measurement from one roller-pin center to the next roller-pin center of a given chain.
Itâs nothing more but a microphone but instead of a membrane moving with a coil attached to it and the magnetic field staying constant, the magnetic field changes. A piezo-electric pickup uses pressure to create a current. The current is in close relation with the frequency of the source, of course. The physical reason as to why some materials exhibit this trait is a bit difficult to explain.
trapezoid. 1  Geometry. a quadrilateral plane figure having two parallel and two nonparallel sides. British. 2  Anatomy. a bone in the wrist that articulates with the metacarpal bone of the forefinger. 3  Also, trapezoidal. Geometry. of, relating to, or having the form of a trapezoid.