发明名称 |
Method for characterizing materials by using a mechanical resonator |
摘要 |
Methods for monitoring a fluid composition include placing a mechanical resonator in the fluid composition and oscillating the resonator. The resonator can be a tuning fork resonator having tines oscillated in opposite directions and in opposite phases. A variable frequency input signal can be varied over a predetermined frequency range and oscillate the mechanical resonator at less than 1 MHz. A frequency-dependent resonator response curve can be stored in a computer memory and fitted to a model curve to monitor the fluid. The resonator can be coated with a protective coating. The resonator can be treated with a functionality designed to change a resonance frequency of the resonator after being exposed to a selected target chemical and the resonance frequency monitored to detect presence of the target chemical.
|
申请公布号 |
US7334452(B2) |
申请公布日期 |
2008.02.26 |
申请号 |
US20020201181 |
申请日期 |
2002.07.23 |
申请人 |
VISYX TECHNOLOGIES, INC. |
发明人 |
MATSIEV LEONID;BENNETT JAMES;MCFARLAND ERIC |
分类号 |
G01N29/02;G01H13/00;G01N9/00;G01N9/34;G01N11/16;G01N29/036;G01N29/30;G01N29/34;G01N29/42;G01N29/44;G10K11/02;H03H9/19 |
主分类号 |
G01N29/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|