DEVELOPMENT OF NOVEL TRANSDUCER MATERIALS
DEVELOPMENT OF NOVEL TRANSDUCER MATERIALS
批准号:
6206556
负责人:
THOMAS R SHROUT
金额:
$13.9万
依托单位国家:
美国
项目类别:
财政年份:
1999
资助国家:
美国
项目状态:
已结题
起止时间:
1999-09-01 至 2000-08-31
中文摘要
传统的压电材料,如用于换能器的PZT-5 H
可能不适合于VHF换能器和阵列制造。
此外,具有更高耦合的更好的压电材料
系数和可变介电常数,
带宽和更灵活的换能器设计是需要的
传统线性阵列性能的改进以及
多维数组的发展。 在这个项目中,
PZT具有较小的晶粒尺寸和单晶弛豫材料
例如PZN-PT,其具有比PZN-PT高得多的耦合系数,
PZT-5 H将被制备和改进用于VHF线阵制造。
此外,通过溶胶-凝胶工艺制备的1-3纤维复合材料将
适用于VHF单元件换能器。 的潜力
这些材料已被证明是更好的性能,
超声波换能器的带宽和灵敏度,
这些材料与在室温下由PZT-5 H制备的材料相比,
类似的条件。
英文摘要
Conventional piezoelectric materials such as PZT-5H for transducer
may not be suitable for VHF transducer and array fabrication.
Moreover, better piezoelectric materials with higher coupling
coefficient and variable dielectric constant allowing for wider
bandwidth and more flexible transducer design are needed for the
improvement of conventional linear array performance as well as the
development of multidimensional arrays. In this project, fine grain
PZT which has smaller grain size and single crystal relaxor materials
such as PZN-PT which has a much higher coupling coefficient than
PZT-5H will be prepared and improved for VHF linear array fabrication.
In addition 1-3 fiber composites prepared via a sol-gel process will
be developed for VHF single element transducers. The potential of
these materials has been demonstrated by the better performance in
bandwidth and sensitivity of ultrasonic transducers prepared from
these materials in comparison to those prepared from PZT-5H under
similar conditions.
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会议论文
A Resource on Medical Ultrasonic Transducer Technology
-
批准号:8111971
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项目类别:
-
资助金额:$82.31万
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财政年份:2010
-
负责人:THOMAS R SHROUT
-
依托单位:
A Resource on Medical Ultrasonic Transducer Technology
-
批准号:7283877
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项目类别:
-
资助金额:$12.76万
-
财政年份:2006
-
负责人:THOMAS R SHROUT
-
依托单位:
DEVELOPMENT OF NOVEL TRANSDUCER MATERIALS
-
批准号:6658775
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项目类别:
-
资助金额:$22.05万
-
财政年份:2002
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负责人:THOMAS R SHROUT
-
依托单位:
DEVELOPMENT OF NOVEL TRANSDUCER MATERIALS
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批准号:6348234
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项目类别:
-
资助金额:$13.9万
-
财政年份:2000
-
负责人:THOMAS R SHROUT
-
依托单位:
DEVELOPMENT OF NOVEL TRANSDUCER MATERIALS
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批准号:6123417
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项目类别:
-
资助金额:$12.76万
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财政年份:1998
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负责人:THOMAS R SHROUT
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依托单位:
2 D ARRAY TRANSDUCERS FOR MEDICAL DIAGNOSTIC ULTRASOUND
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批准号:6254287
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项目类别:
-
资助金额:$7.48万
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财政年份:1997
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负责人:THOMAS R SHROUT
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依托单位:
DOPPLER FLOW MEASUREMENT FOR ANALY EARLY MOUSE EMBRYONIC DVMT
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批准号:6254284
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项目类别:
-
资助金额:$7.48万
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财政年份:1997
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负责人:THOMAS R SHROUT
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依托单位:
HIGH FREQUENCY LINEAR ARRAYS, TRANSDUCER
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批准号:6254279
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项目类别:
-
资助金额:$7.48万
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财政年份:1997
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负责人:THOMAS R SHROUT
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依托单位:
High frequency ultrasonic characterization of eye tissue
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批准号:6254281
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项目类别:
-
资助金额:$7.48万
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财政年份:1997
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负责人:THOMAS R SHROUT
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依托单位:
VERY HIGH FREQUENCY SPARSE LINEAR PHASED ARRAYS
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批准号:6254283
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项目类别:
-
资助金额:$7.48万
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财政年份:1997
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负责人:THOMAS R SHROUT
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依托单位:
NOVEL PIEZOELECTRIC MATERIALS
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批准号:6254278
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项目类别:
-
资助金额:$7.48万
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财政年份:1997
-
负责人:THOMAS R SHROUT
-
依托单位:
A Resource on Medical Ultrasonic Transducer Technology
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批准号:7470094
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项目类别:
-
资助金额:$99.81万
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财政年份:--
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负责人:THOMAS R SHROUT
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依托单位:
A Resource on Medical Ultrasonic Transducer Technology
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批准号:7655451
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项目类别:
-
资助金额:$84.72万
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财政年份:--
-
负责人:THOMAS R SHROUT
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依托单位:
A Resource on Medical Ultrasonic Transducer Technology
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批准号:7916629
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项目类别:
-
资助金额:$84.09万
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财政年份:--
-
负责人:THOMAS R SHROUT
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依托单位: