公开(公告)号：US08754361B1

公开(公告)日：2014-06-17

申请号：US13794751

申请日：2013-03-11

Applicant: 1st Detect Corporation

Inventor： David Rafferty ,  Brian Oliver ,  Darron Black

IPC: G01D18/00 ,  G01N30/72

CPC classification number: H01J49/0009 ,  H01J49/424

Abstract: A mass spectrometer comprises an ion trap configured to trap ions and to eject ions. The ion trap comprises an electrode. The mass spectrometer further comprises a detector configured to detect ions ejected from the ion trap, a radio frequency (RF) generator electrically coupled to the electrode and configured to generate an RF signal, a sampling circuit electrically coupled to electrode and configured to measure a voltage of the RF signal at the electrode, and a signal processor electrically coupled to the sampling circuit and the detector. The signal processor is configured to receive outputs from the detector and the sampling circuit and to correct the output from the detector based on the output from the sampling circuit.

Abstract translation: 质谱仪包括被配置成捕获离子并排出离子的离子阱。 离子阱包括电极。 所述质谱仪还包括检测器，其被配置为检测从所述离子阱排出的离子;射频（RF）发生器，其电耦合到所述电极并被配置为产生RF信号;采样电路，电耦合到电极并且被配置为测量电压 的电极上的RF信号，以及电耦合到采样电路和检测器的信号处理器。 信号处理器被配置为从检测器和采样电路接收输出，并且基于采样电路的输出来校正来自检测器的输出。