qpdとは 意味・読み方・使い方

In a mechanism that detects positional information of an opposite apparatus on the basis of respective light receiving amounts from a QPD (quadrant photo detector) in time division, dividing each QPD light receiving amount by the entire light receiving amounts detected by the other photo detectors can prevent wrong detection of the positional information due to temporal variations in the light receiving amount.例文帳に追加

相手装置の位置情報を時分割でＱＰＤ（４分割受光素子）のそれぞれの受光量から検出する機構において、それぞれのＱＰＤ受光量を他の受光素子で検出した全体の受光量で割る事により、時間的に受光量が変動する事による、位置情報の誤検出を防ぐ。 - 特許庁

A transistor QPd of the output stage circuit 26 is turned on, by being applied with gate voltage V_LOW2 from the prestage circuit 24a, to output a current responsive to the voltages V_DD and Vgs=V_DD-V_LOW2 to the output terminal Vout.例文帳に追加

出力段回路２６のトランジスタＱPdは前段回路２４ａからゲート電圧Ｖ_ＬＯＷ２を印加されてオンし、出力端子Ｖoutに電圧Ｖ_ＤＤ、かつＶgs＝Ｖ_ＤＤ−Ｖ_ＬＯＷ２に応じた電流を出力する。 - 特許庁