standard frequency and time signals 中文意思是什麼

standard frequency and time signals 解釋
標頻時信號
  • standard : n 1 標準,水準,規格,模範。2 旗;軍旗,隊旗;【徽章】標幟,標記;旗標,象徵。3 【植物;植物學】...
  • frequency : n. 1. 屢次,頻仍,頻繁。2. (脈搏等的)次數,出現率;頻度;【物理學】頻率,周率。
  • and : n. 1. 附加條件。2. 〈常 pl. 〉附加細節。
  • time : n 1 時,時間,時日,歲月。2 時候,時刻;期間;時節,季節;〈常pl 〉時期,年代,時代; 〈the time ...
  • signals : 信號
  1. Intelligent counter digital frequency rotating speed line velocity display control transmit instruments are all adopt used advanced microprocessor for smart control. input is pulsed quantity or contect switch quantity signal, after cpu operation processing, count, rotating speed or line velocity will be clearly intuitional indicated by high brightness led numeral tube, at the same time, these signals can be changed into standard voltage current signal to transmit output. and have the functions of super - limited alarm, standard serial communication function

    簡易后備操作器接收從dcs系統或pid調節器給定的模擬量信號,正常控制時,操作器輸入輸出相當于直通的,以實現dcs系統或pid調節器對執行機構的自動控制,當前級dcs系統或pid調節器發生故障時,操作器接收到故障狀態信號,即轉為手動控制狀態,由按鍵控制操作信號的輸出,當故障解除,儀表自動恢復自動狀態。
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