Integrating electrometer amplifying circuit

Details Integrating electrometer amplifying circuit Integrating electrometer amplifying circuit

2007-06-12

2007-06-12

Hirshfeld, Andrew H. (Department: 2858)

Electricity: measuring and testing

Electrostatic field

Using modulation-type electrometer

C324S457000, C324S12300R, C324S754120

Reexamination Certificate

active

10765740

ABSTRACT:
An aerosol particle spectrometer utilizes a high voltage central electrode and a series of annular, axially arranged collector electrodes maintained at ground, for collecting positively charged particles suspended in an aerosol flowing between the electrodes. Each collector electrode provides current to an integrating electrometer including circuitry that rapidly charges and discharges the integrating capacitor during a brief reset cycle, to generate accurate particle characterizing information based on low currents, with high bandwidth and high dynamic range, virtually in real time.

REFERENCES:
patent: 4117332 (1978-09-01), Felton
patent: 5278490 (1994-01-01), Smedley
patent: 5565761 (1996-10-01), Hwang
patent: 5617306 (1997-04-01), Lai et al.
patent: 5742151 (1998-04-01), Hwang
patent: 6519167 (2003-02-01), Nguyen
patent: 6628106 (2003-09-01), Batarseh et al.
patent: 6781352 (2004-08-01), Athari et al.
patent: 6963190 (2005-11-01), Asanuma et al.
patent: 19824744 (1999-03-01), None
patent: WO90/13829 (1990-11-01), None
patent: WO99/41585 (1999-08-01), None

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