发明名称 |
Personal sampling pump |
摘要 |
A portable battery powered pump providing constant mass flow of air sample through a particular filter or vapor trap in which the pump drive motor speed is controlled by an amplifier having a reference voltage input and an inverse feedback signal related to sensed motor speed. Compensation for increased resistance to air sample flow is made by a motor current feedback signal applied to the amplifier to cause motor speed to increase with increased flow resistance.
|
申请公布号 |
US4384825(A) |
申请公布日期 |
1983.05.24 |
申请号 |
US19800202556 |
申请日期 |
1980.10.31 |
申请人 |
THE BENDIX CORPORATION |
发明人 |
THOMAS, THOMAS J.;MILLS, RICHARD H. |
分类号 |
F04B49/06;F04B49/20;(IPC1-7):F04B49/06 |
主分类号 |
F04B49/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|