发明名称 |
Acoustic particle alarm including particle sensor |
摘要 |
The present invention provides an acoustic particle alarm comprising a particle sensor for indicating the concentration of particles exceeding a specified size and specified concentration, for particles entrained in a fluid flow impinging on a front face of the sensor, and a nozzle for directing the fluid flow such that the particles impact the sensor in a direction substantially normal to the front face of the sensor. Each particle impacting the front face of the sensor causes a response in an output of the sensor with amplitude that is monotonic in the momentum of the impinging particle.
|
申请公布号 |
US7463158(B2) |
申请公布日期 |
2008.12.09 |
申请号 |
US20050253364 |
申请日期 |
2005.10.19 |
申请人 |
LINEAR MEASUREMENTS, INC. |
发明人 |
HATCH ROBERT K.;SQUIRE WILLIAM D.;WHITEHOUSE HARPER J. |
分类号 |
G08B21/00 |
主分类号 |
G08B21/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|