公开(公告)号：US20040191112A1

公开(公告)日：2004-09-30

申请号：US10403214

申请日：2003-03-31

Applicant: STERIS Inc.

Inventor： Aaron L. Hill ,  Leslie M. Logue ,  Terrence L. Lukas

IPC: G05B001/00 ,  G05D001/00

CPC classification number: G05D7/0676

Abstract: A system for injecting liquid hydrogen peroxide using a closed-loop flow control for controlling the injection rate of the liquid hydrogen peroxide. An injection rate is determined from measuring the rotational speed of a pump motor. If the determined injection rate varies from the desired injection rate, the speed of the pump motor is modified. Pulse width modulation (PWM) is used to control the pump motor speed.

Abstract translation: 一种用于控制液体过氧化氢的注射速率的闭环流量控制来注射液体过氧化氢的系统。 通过测量泵马达的转速来确定喷射速率。 如果确定的喷射速率从期望的喷射速率变化，则泵马达的速度被改变。 脉宽调制（PWM）用于控制泵电机转速。