JP4746903B2 - 超音波流量計 - Google Patents
超音波流量計 Download PDFInfo
- Publication number
- JP4746903B2 JP4746903B2 JP2005109570A JP2005109570A JP4746903B2 JP 4746903 B2 JP4746903 B2 JP 4746903B2 JP 2005109570 A JP2005109570 A JP 2005109570A JP 2005109570 A JP2005109570 A JP 2005109570A JP 4746903 B2 JP4746903 B2 JP 4746903B2
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- ultrasonic
- transmitting
- ultrasonic beam
- transducer
- receiving
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Description
φn=(n−1)(2πd/λ)sinθ
2、3 振動子群
2a、2b、・・・、2n、3a、3b、・・・、3n 振動子
4a、4b、・・・、4n、7a、7b、・・・、7n 移相回路
5、8 スイッチ回路
6 信号源
Claims (2)
- 計測すべき流体を流す管体と、該管体の外周面に取り付け流体を介して超音波ビームを送受波する送波用振動子群、受波用振動子群とを備え、これらの振動子群はそれぞれ複数の超音波振動子で構成し、それぞれの超音波振動子間に所定の電気的位相制御を施すことにより超音波ビームの送波方位及び受波方位をそれぞれ制御可能とし、前記送波用振動子群、受波用振動子群において前記複数の超音波振動子は一列に配列し、前記送波用振動子群による超音波ビームの送波方位の制御は、前記配列した超音波振動子に個々に位相差を与えて励起することにより波面を揃え、該波面と垂直方向に合成した超音波ビームを送波することにより行い、前記受波用振動子群による超音波ビームの受波方位の制御は、前記配列した超音波振動子に個々に位相差を与えることにより波面を揃え、該波面と垂直方向からの超音波ビームを受波することにより行い、前記送波用振動子群による超音波ビームの送波方位に前記受波用振動子群による超音波ビームの受波方位を一致させるようにしたことを特徴とする超音波流量計。
- 前記送波用振動子群と前記受波用振動子群は交互に送波、受波の機能を切換えるようにした請求項1に記載に記載の超音波流量計。
Priority Applications (1)
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JP2005109570A JP4746903B2 (ja) | 2005-04-06 | 2005-04-06 | 超音波流量計 |
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JP2005109570A JP4746903B2 (ja) | 2005-04-06 | 2005-04-06 | 超音波流量計 |
Publications (2)
Publication Number | Publication Date |
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JP2006292406A JP2006292406A (ja) | 2006-10-26 |
JP4746903B2 true JP4746903B2 (ja) | 2011-08-10 |
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ID=37413139
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Application Number | Title | Priority Date | Filing Date |
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JP2005109570A Expired - Fee Related JP4746903B2 (ja) | 2005-04-06 | 2005-04-06 | 超音波流量計 |
Country Status (1)
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JP (1) | JP4746903B2 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS638515A (ja) * | 1986-06-30 | 1988-01-14 | Tokyo Keiki Co Ltd | 超音波流量測定装置 |
JPH0926342A (ja) * | 1995-07-13 | 1997-01-28 | Matsushita Electric Ind Co Ltd | 超音波振動子及びこれを用いた超音波流量計 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02113125A (ja) * | 1988-10-19 | 1990-04-25 | Kayseven Co Ltd | たわみ軸継手 |
-
2005
- 2005-04-06 JP JP2005109570A patent/JP4746903B2/ja not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS638515A (ja) * | 1986-06-30 | 1988-01-14 | Tokyo Keiki Co Ltd | 超音波流量測定装置 |
JPH0926342A (ja) * | 1995-07-13 | 1997-01-28 | Matsushita Electric Ind Co Ltd | 超音波振動子及びこれを用いた超音波流量計 |
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JP2006292406A (ja) | 2006-10-26 |
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