发明名称 |
VORRICHTUNGEN UND VERFAHREN ZUR VERRINGERUNG VON KOHÄRENTEM RAUSCHEN IN EINEM DIGITALEN SIGNALMITTLER |
摘要 |
Apparatus and methods are provided for reducing coherent noise in measurements of repetitive analog signal waveforms by digital signal averagers. A conventional DSA (30) being used to record the time-dependent signal (5) constituting a portion of interest of an ion mass spectrum produced by a time-of-flight mass analyzer (25). Upon application of a voltage pulse (20) from a voltage pulse generator (21) to an electrode (22) boundingthe pulsing region (23), ions are accelerated into the time-of-flight measurement chamber (26), and arrive at a detector (27) with a time dependence that is proportional to the square-root of their mass-to-charge ratio. |
申请公布号 |
AT386925(T) |
申请公布日期 |
2008.03.15 |
申请号 |
AT20030724218T |
申请日期 |
2003.04.23 |
申请人 |
ANALYTICA OF BRANFORD, INC. |
发明人 |
WELKIE, DAVID;WHITEHOUSE, CRAIG |
分类号 |
G01D3/032;G01R13/02;G01V1/36 |
主分类号 |
G01D3/032 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|