JPH01120292U - - Google Patents

Info

Publication number
JPH01120292U
JPH01120292U JP1488088U JP1488088U JPH01120292U JP H01120292 U JPH01120292 U JP H01120292U JP 1488088 U JP1488088 U JP 1488088U JP 1488088 U JP1488088 U JP 1488088U JP H01120292 U JPH01120292 U JP H01120292U
Authority
JP
Japan
Prior art keywords
analog signal
circuit
storage circuit
signal storage
memory control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1488088U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1488088U priority Critical patent/JPH01120292U/ja
Publication of JPH01120292U publication Critical patent/JPH01120292U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Feedback Control In General (AREA)
  • Control Of Fluid Pressure (AREA)
  • Measuring Volume Flow (AREA)
  • Emergency Alarm Devices (AREA)

Description

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

第1図は本考案の実施例による変化率検出装置
を配水システムに適用したブロツク図、第2図は
第1図の装置のメモリ制御回路の結線図、第3図
は第1図の装置の動作タイミング図、第4図はア
ナログ信号記憶回路の入力信号特性図、第5図は
アナログ信号記憶回路の出力信号特性図、第6図
は従来の変化率検出装置を配水システムに適用し
たブロツク図である。 3……流量計、9……アナログ信号記憶回路、
10……メモリ制御回路、11……偏差警報回路
Fig. 1 is a block diagram of a rate-of-change detection device according to an embodiment of the present invention applied to a water distribution system, Fig. 2 is a wiring diagram of the memory control circuit of the device of Fig. 1, and Fig. 3 is a diagram of the device of Fig. 1. Operation timing diagram, Figure 4 is an input signal characteristic diagram of the analog signal storage circuit, Figure 5 is an output signal characteristic diagram of the analog signal storage circuit, and Figure 6 is a block diagram of a conventional change rate detection device applied to a water distribution system. It is. 3...Flowmeter, 9...Analog signal storage circuit,
10...Memory control circuit, 11...Difference alarm circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 連続したアナログ信号を入力するアナログ信号
記憶回路と、該アナログ信号記憶回路の出力タイ
ミングを制御するメモリ制御回路と、該メモリ制
御回路の制御に応じて前記アナログ信号記憶回路
から出力される過去のアナログ信号と現在のアナ
ログ信号を所定の時間間隔で比較しその偏差に基
づいて信号を出力する偏差警報回路によつて構成
したことを特徴とする変化率検出装置。
an analog signal storage circuit that inputs continuous analog signals; a memory control circuit that controls the output timing of the analog signal storage circuit; and a past analog signal that is output from the analog signal storage circuit in accordance with the control of the memory control circuit. 1. A rate-of-change detection device comprising a deviation alarm circuit that compares a signal and a current analog signal at predetermined time intervals and outputs a signal based on the deviation.
JP1488088U 1988-02-06 1988-02-06 Pending JPH01120292U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1488088U JPH01120292U (en) 1988-02-06 1988-02-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1488088U JPH01120292U (en) 1988-02-06 1988-02-06

Publications (1)

Publication Number Publication Date
JPH01120292U true JPH01120292U (en) 1989-08-15

Family

ID=31226463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1488088U Pending JPH01120292U (en) 1988-02-06 1988-02-06

Country Status (1)

Country Link
JP (1) JPH01120292U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61104263A (en) * 1984-10-26 1986-05-22 Mitsubishi Electric Corp Automatic inspection apparatus of number-of-rotation detection apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61104263A (en) * 1984-10-26 1986-05-22 Mitsubishi Electric Corp Automatic inspection apparatus of number-of-rotation detection apparatus

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