Title:
流量制御方法および流量制御装置
Document Type and Number:
Japanese Patent JP4854197
Kind Code:
B2
Abstract:
A precision flow controller is capable of providing a flow rate less than 100 microliters/minute and varying the flow rate in a prescribed manner that is both predictable and reproducible where the accuracy and precision of the flowrate is less than 5% of the flow rate. A plurality of variable pressure fluid supplies pump fluid through a single outlet. Flowmeters measure the flow rates and a controller compares the flow rates to desired flowrates and, if necessary, adjusts the plurality of variable pressure fluid supplies so that the variable pressure fluid supplies pump fluid at the desired flow rate. The variable pressure fluid supplies can be pneumatically driven.
Inventors:
Paul, Philip, H.
Laem, Jason, Yi.
Arnold, Don Wesley
Laem, Jason, Yi.
Arnold, Don Wesley
Application Number:
JP2004538456A
Publication Date:
January 18, 2012
Filing Date:
September 17, 2003
Export Citation:
Assignee:
AB SAYX LLC
International Classes:
G05D7/06; B01D61/56; G01N30/32; G01N30/34; G05D11/13; B01L99/00
Domestic Patent References:
| JP2002529235A | 2002-09-10 | |||
| JP2003513255A | 2003-04-08 | |||
| JPH0772934A | 1995-03-17 | |||
| JPS50116893A | 1975-09-12 | |||
| JPS6468503A | 1989-03-14 | |||
| JPH07306192A | 1995-11-21 | |||
| JP2001183193A | 2001-07-06 | |||
| JPS6454220A | 1989-03-01 | |||
| JP2000292227A | 2000-10-20 | |||
| JPH0719201A | 1995-01-20 |
Attorney, Agent or Firm:
Sonoda Yoshitaka
Kobayashi Yoshinori
Kobayashi Yoshinori