JPH0167544U - - Google Patents

Info

Publication number
JPH0167544U
JPH0167544U JP1987162968U JP16296887U JPH0167544U JP H0167544 U JPH0167544 U JP H0167544U JP 1987162968 U JP1987162968 U JP 1987162968U JP 16296887 U JP16296887 U JP 16296887U JP H0167544 U JPH0167544 U JP H0167544U
Authority
JP
Japan
Prior art keywords
display
circuit section
section
gas pressure
pressure gauge
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
JP1987162968U
Other languages
English (en)
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 JP1987162968U priority Critical patent/JPH0167544U/ja
Publication of JPH0167544U publication Critical patent/JPH0167544U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Measuring Fluid Pressure (AREA)

Description

【図面の簡単な説明】
第1図は本考案による水晶式気体圧力計の回路
ブロツク図、第2図は従来の水晶式気体圧力計の
回路ブロツク図、第3図は気体圧力―水晶振動子
共振抵抗・共振電流特性図、第4図はガス種の校
正曲線図、第5図は本考案による警報リセツト装
置の回路図を示す。 11……PLL回路部、12……表示変換回路
部、13……表示部、21……コンパレータ、2
2……警報装置、23……警報リセツト装置。

Claims (1)

    【実用新案登録請求の範囲】
  1. 少なくとも振動子を有し、該振動子の共振周波
    数における共振電流を電圧として増幅し出力する
    フエーズ・ロツクド・ループ回路部、該フエーズ
    ・ロツクド・ループ回路部に接続された表示変換
    回路部、該表示変換回路部に接続された表示部を
    有し、前記表示変換回路部にコンパレータを有し
    、かつ前記表示部に警報装置を有する水晶式気体
    圧力計において、表示部に警報装置を有する水晶
    式気体圧力計において、表示部に警報リセツト装
    置を有することを特徴とする水晶式気体圧力計。
JP1987162968U 1987-10-23 1987-10-23 Pending JPH0167544U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987162968U JPH0167544U (ja) 1987-10-23 1987-10-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987162968U JPH0167544U (ja) 1987-10-23 1987-10-23

Publications (1)

Publication Number Publication Date
JPH0167544U true JPH0167544U (ja) 1989-05-01

Family

ID=31447273

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987162968U Pending JPH0167544U (ja) 1987-10-23 1987-10-23

Country Status (1)

Country Link
JP (1) JPH0167544U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0643053A (ja) * 1991-03-07 1994-02-18 Yokogawa Electric Corp 振動式センサ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0643053A (ja) * 1991-03-07 1994-02-18 Yokogawa Electric Corp 振動式センサ

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