JPS6072576U - Terminal for level measuring instruments - 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 drawings]

第１図はレベル測定器の従来回路図、第２図は第１図の
等節回路、第３図はこの考案による実施例の回路図。 １・・・・・・信号源、２Ａ、２Ｂ・・・・・・入力端
子、３・・・・・・終端抵抗、４・・・・・・結合コン
デンサ、５・・・・・・ダイ　　　″オード、６・・・
・・・ダイオード、７・・・・・・バイパスコンデンサ
、８・・・・・・直流増幅器、９・・・・・・指示計、
１０・・・・・・検出回路、１１〜１３・・・・・・抵
抗。FIG. 1 is a conventional circuit diagram of a level measuring device, FIG. 2 is an isometric circuit of FIG. 1, and FIG. 3 is a circuit diagram of an embodiment of this invention. 1...Signal source, 2A, 2B...Input terminal, 3...Terminal resistor, 4...Coupling capacitor, 5...Die ``Ode, 6...
... Diode, 7 ... Bypass capacitor, 8 ... DC amplifier, 9 ... Indicator,
10...detection circuit, 11-13...resistance.

Claims (1)

【実用新案登録請求の範囲】 出力インピーダンスＲの信号源に抵抗Ｒを終端し、前記
信号源と前記抵抗Ｒの接続点に検出回路を接続するレベ
ル測定器において、 前記信号源に抵抗Ｒ工・抵抗Ｒ２および抵抗Ｒ３をＴ形
接続にし、 Ｒ□十Ｒ２＝Ｒとし、かつ同じ電力を入力したとき抵抗
Ｒ２の両端の電圧Ｅ２が一定になるようにＲ□／Ｒ２の
比を決め、 前記検出回路側から前記信号源側をみた合成抵抗が一定
になるように抵抗Ｒ０・抵抗Ｒ２および抵抗Ｒ３を決め
ることを特徴とするレベル測定器用終端器。[Claims for Utility Model Registration] A level measuring device in which a signal source with an output impedance R is terminated with a resistor R, and a detection circuit is connected to a connection point between the signal source and the resistor R, wherein the signal source is connected to a resistor R. The resistor R2 and the resistor R3 are connected in a T-shape, R□+R2=R, and the ratio of R□/R2 is determined so that the voltage E2 across the resistor R2 is constant when the same power is input, and the above detection is performed. A terminator for a level measuring device, characterized in that resistors R0, R2, and R3 are determined so that the combined resistance seen from the circuit side to the signal source side is constant.