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.
Amy Juergens. Amy Juergens is the main protagonist of The Secret Life of the American Teenager. She is pregnant during the first season of the show and gives birth to her and Ricky Underwood's son, John Juergens, at the end of the season one. She is married to Ricky Underwood (as stated by the creator o all.