发明名称 |
Hydrophone for use in a downhole tool |
摘要 |
A pressure pulse sensor and associated methods provide enhanced functionality and convenience in detecting pressure pulses. In a described embodiment, a hydrophone includes a stack of disc-shaped lead titanate piezoelectric crystals enclosed within an epoxy membrane and a mounting portion which is aligned with a center of mass of the crystal stack.
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申请公布号 |
US6438070(B1) |
申请公布日期 |
2002.08.20 |
申请号 |
US19990411078 |
申请日期 |
1999.10.04 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
BIRCHAK JAMES R.;MILLER ALVIN B.;HARRELL JOHN W. |
分类号 |
B06B1/06;G01V1/18;G01V1/52;(IPC1-7):G01V1/40 |
主分类号 |
B06B1/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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