The principle used in most encoders (linear or rotational) is the same: an optical device. We shall study two types of rotational encoders briefly. Figure 3.12 shows an incremental encoder.
Amy McDougall/Barone (Monica Horan) becomes Robert Barone's second wife (in season 7), and is the best friend of Debra, who introduces her to Robert. A recurring character for the first seven seasons of the series, Amy became essentially a regular cast member for the remainder of the show's run.
Douglas Doug Devereaux (Nephew) Matthew Skippy Devereaux (Nephew) Charmaine Gertrude Hollingsworth is the sister of Blanche, Virginia, Clayton, and Tad Hollingsworth. She was portrayed by Barbara Babcock in the Season 5 episode of The Golden Girls titled Sisters and Other Strangers.