专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06822929B1 Micro acoustic spectrum analyzer 失效
标题翻译：微声谱分析仪
公开(公告)号：US06822929B1
公开(公告)日：2004-11-23
申请号：US10606526
申请日：2003-06-25
申请人： W. Kent Schubert , Michael A. Butler , Douglas R. Adkins , Larry F. Anderson
发明人： W. Kent Schubert , Michael A. Butler , Douglas R. Adkins , Larry F. Anderson
IPC分类号： G01N3300
CPC分类号： B06B1/0292 , G01H3/00 , G01H3/08 , G01H3/12 , G01N29/14 , G01N29/42 , G01N29/46 , H04R1/44 , H04R29/00
摘要： A micro acoustic spectrum analyzer for determining the frequency components of a fluctuating sound signal comprises a microphone to pick up the fluctuating sound signal and produce an alternating current electrical signal; at least one microfabricated resonator, each resonator having a different resonant frequency, that vibrate in response to the alternating current electrical signal; and at least one detector to detect the vibration of the microfabricated resonators. The micro acoustic spectrum analyzer can further comprise a mixer to mix a reference signal with the alternating current electrical signal from the microphone to shift the frequency spectrum to a frequency range that is a better matched to the resonant frequencies of the microfabricated resonators. The micro acoustic spectrum analyzer can be designed specifically for portability, size, cost, accuracy, speed, power requirements, and use in a harsh environment. The micro acoustic spectrum analyzer is particularly suited for applications where size, accessibility, and power requirements are limited, such as the monitoring of industrial equipment and processes, detection of security intrusions, or evaluation of military threats.
摘要翻译：用于确定波动声音信号的频率分量的微声频谱分析仪包括麦克风拾取波动的声音信号并产生交流电信号; 至少一个微制造谐振器，每个谐振器具有不同的谐振频率，其响应于交流电信号而振动; 以及至少一个检测器，用于检测微加工的谐振器的振动。微声频谱分析仪还可以包括混合器以将参考信号与来自麦克风的交流电信号混合，以将频谱移动到与微细谐振器的谐振频率更好匹配的频率范围。微声谱分析仪可以专门设计用于便携性，尺寸，成本，精度，速度，功率要求和在恶劣环境中的使用。微声谱分析仪特别适用于尺寸，可达性和功率要求有限的应用，例如监测工业设备和工艺，检测安全入侵或评估军事威胁。

IPRDB

热门服务

关于我们

友情链接

联系方式