JPH0390313U - - Google Patents

Info

Publication number
JPH0390313U
JPH0390313U JP11378490U JP11378490U JPH0390313U JP H0390313 U JPH0390313 U JP H0390313U JP 11378490 U JP11378490 U JP 11378490U JP 11378490 U JP11378490 U JP 11378490U JP H0390313 U JPH0390313 U JP H0390313U
Authority
JP
Japan
Prior art keywords
pressure
chamber
control device
output
pressure 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.)
Granted
Application number
JP11378490U
Other languages
Japanese (ja)
Other versions
JPH0720725Y2 (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 JP1990113784U priority Critical patent/JPH0720725Y2/en
Publication of JPH0390313U publication Critical patent/JPH0390313U/ja
Application granted granted Critical
Publication of JPH0720725Y2 publication Critical patent/JPH0720725Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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  • Measuring Fluid Pressure (AREA)
  • Control Of Fluid Pressure (AREA)

Description

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

第１図はこの考案の一実施例を示すブロツク図
である。第２図は第１図実施例に用いられるカル
マン渦流速計を用いた流速検出回路を示すブロツ
ク図である。第３図は第２図に示す流速検出回路
の出力を示すグラフである。第４図は実験結果を
示すグラフである。第５図は第２図に示す平方根
変換器の一例を詳細に示す回路図である。第６図
は第５図の平方根変換器の出力を示すグラフであ
る。 図において、１０……差圧検出器、１２および
１４……区画、１６……連通部、２６……流速検
出回路、２８……平方根変換器、１００……フア
ン能力制御装置、１０２……給気フアン、１０４
……排気フアン、１０６，１０８……ダクトを示
す。 FIG. 1 is a block diagram showing one embodiment of this invention. FIG. 2 is a block diagram showing a flow velocity detection circuit using the Karman vortex current meter used in the embodiment of FIG. FIG. 3 is a graph showing the output of the flow velocity detection circuit shown in FIG. FIG. 4 is a graph showing the experimental results. FIG. 5 is a circuit diagram showing in detail an example of the square root converter shown in FIG. 2. FIG. 6 is a graph showing the output of the square root converter of FIG. In the figure, 10... Differential pressure detector, 12 and 14... Division, 16... Communication section, 26... Flow rate detection circuit, 28... Square root converter, 100... Fan capacity control device, 102... Supply Qi Huan, 104
... Exhaust fan, 106, 108 ... Shows a duct.

Claims (1)

【実用新案登録請求の範囲】 １ その圧力が制御されるべき室に連通する連通
部、 前記連通部に配置され、かつそこにおける流速
を検出するためのカルマン渦流速計、および 前記カルマン渦流速計の出力に基づいて前記室
の圧力を調整する圧力調整手段を備える、室内圧
力制御装置。 ２ 前記流速検出手段の出力電圧を直線近似する
ための近似手段をさらに備え、前記圧力調整手段
は前記近似手段の出力に応答して前記室の圧力を
調整する、実用新案登録請求の範囲第１項記載の
室内圧力制御装置。 ３ 前記近似手段は平方根変換器を含む、実用新
案登録請求の範囲第２項記載の室内圧力制御装置
。[Claims for Utility Model Registration] 1. A communication section communicating with a chamber whose pressure is to be controlled, a Karman vortex current meter disposed in the communication section and for detecting the flow velocity therein, and the Karman vortex current meter. An indoor pressure control device comprising a pressure adjustment means for adjusting the pressure in the chamber based on the output of the chamber. 2. Utility model registration claim 1 further comprising approximation means for linearly approximating the output voltage of the flow rate detection means, and the pressure adjustment means adjusting the pressure in the chamber in response to the output of the approximation means. Indoor pressure control device as described in section. 3. The indoor pressure control device according to claim 2, wherein the approximation means includes a square root converter.
JP1990113784U 1990-10-29 1990-10-29 Indoor pressure control device Expired - Lifetime JPH0720725Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990113784U JPH0720725Y2 (en) 1990-10-29 1990-10-29 Indoor pressure control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990113784U JPH0720725Y2 (en) 1990-10-29 1990-10-29 Indoor pressure control device

Publications (2)

Publication Number Publication Date
JPH0390313U true JPH0390313U (en) 1991-09-13
JPH0720725Y2 JPH0720725Y2 (en) 1995-05-15

Family

ID=31662186

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990113784U Expired - Lifetime JPH0720725Y2 (en) 1990-10-29 1990-10-29 Indoor pressure control device

Country Status (1)

Country Link
JP (1) JPH0720725Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010043817A (en) * 2008-08-18 2010-02-25 Fuji Denki Sosetsu Co Ltd Air conditioning system of server chamber

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009018839U1 (en) 2008-12-25 2013-10-24 Brother Kogyo Kabushiki Kaisha Tape cassette and tape printer
EP3878657A1 (en) 2008-12-25 2021-09-15 Brother Kogyo Kabushiki Kaisha Tape cassette and tape printer
JP5282815B2 (en) 2009-03-31 2013-09-04 ブラザー工業株式会社 Tape cassette
WO2010113440A1 (en) 2009-03-31 2010-10-07 Brother Kogyo Kabushiki Kaisha Tape cassette and tape printer
JP5212550B2 (en) 2009-12-16 2013-06-19 ブラザー工業株式会社 Tape cassette
JP6126929B2 (en) * 2012-07-12 2017-05-10 日本電技株式会社 Fine differential pressure transmitter and air conditioning system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56131444U (en) * 1980-03-07 1981-10-06

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56131444U (en) * 1980-03-07 1981-10-06

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010043817A (en) * 2008-08-18 2010-02-25 Fuji Denki Sosetsu Co Ltd Air conditioning system of server chamber

Also Published As

Publication number Publication date
JPH0720725Y2 (en) 1995-05-15

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