JPS59187804U - Control element operating characteristic correction device - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は流量制御弁の特性補正の従来例を示すブロック
図、第２図は第１図の流量制御弁の補正前の流量特性を
示すグラフ、第３図は第１図による特性補正を行なった
場合の流量制御弁の流量特性を示すグラフ、第４図は本
考案−実施例の制御要素動作特性補正装置の構成を示す
ブロック図、第５図は第４図の流量制御弁の補正前およ
び第４図の補正装置による補正後の各流量特性を示すグ
ラフである。 １・・・調節要素、３・・・制御要素、１１・・・第１
補正回路、１２・・・第２補正回路、１３・・・正負判
定回路、１４・・・切替スイッチ。 第３図 第４図Fig. 1 is a block diagram showing a conventional example of characteristic correction of a flow control valve, Fig. 2 is a graph showing the flow rate characteristic before correction of the flow control valve of Fig. 1, and Fig. 3 is a graph showing the characteristic correction according to Fig. 1. FIG. 4 is a block diagram showing the configuration of the control element operating characteristic correction device of the present invention-embodiment, and FIG. 5 is a graph showing the flow rate characteristics of the flow control valve when the correction is performed. 5 is a graph showing each flow rate characteristic after correction by the correction devices shown in the previous figure and in FIG. 4; 1... Adjustment element, 3... Control element, 11... First
Correction circuit, 12... Second correction circuit, 13... Positive/negative determination circuit, 14... Changeover switch. Figure 3 Figure 4

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 線形な駆動信号を出力する調節要素と、ヒステリシス特
性を有し、前記駆動信号を受けて非線形な動作を行なう
制御要素とを具備してなるものにおいて、前記駆動信号
を入力しこの信号の正変化のときに前記制御要素の動作
特性を線形化した補正駆動信号を出力する第１補正回路
と、前記駆動信号を入力しこの信号の負変化のときに前
記制御要素の動作特性を線形化した補正駆動信号を出力
する第２補正回路と、前記駆動信号を入力しその微小変
化の正負を判定し正負の別を示す信号を出力する正負判
定回路と、この正負判定回路の判定信号の正負に基き前
記第１補正回路の出力および第２補正回路の出力を前記
制御要素に選択接続する切替スイッチとを具備してなる
制御要素動作特性補正装置。A device comprising an adjustment element that outputs a linear drive signal and a control element that has a hysteresis characteristic and performs a nonlinear operation in response to the drive signal, wherein the control element receives the drive signal and receives a positive change in the signal. a first correction circuit that outputs a corrected drive signal that linearizes the operating characteristic of the control element when , and a correction circuit that inputs the drive signal and linearizes the operating characteristic of the control element when the signal changes negatively. a second correction circuit that outputs a drive signal; a positive/negative determination circuit that inputs the drive signal, determines whether the minute change is positive or negative, and outputs a signal indicating whether it is positive or negative; A control element operating characteristic correction device comprising a changeover switch that selectively connects the output of the first correction circuit and the output of the second correction circuit to the control element.