公开(公告)号：US20160052634A1

公开(公告)日：2016-02-25

申请号：US14465448

申请日：2014-08-21

Applicant: JONATHAN D. ALMOND

Inventor： JONATHAN D. ALMOND

IPC: B64D15/22 ,  B64C39/02 ,  B64D31/06 ,  G05D1/08

CPC classification number: B64D15/22 ,  B64C39/024 ,  B64C2201/024 ,  B64C2201/141 ,  B64D15/20 ,  B64D31/06 ,  G05D1/0816

Abstract: A system includes a signal monitor to monitor a time rate of change of a revolutions per minute (RPM) trim signal that is received from an RPM command path to control a velocity of a helicopter rotor. An icing detector detects for the presence of ice accumulation on the helicopter rotor by comparing the time rate of change of the RPM trim signal to a predetermined threshold for the time rate of change.

Abstract translation: 系统包括信号监视器，用于监视从RPM命令路径接收的每分钟转数（RPM）微调信号的时间变化率，以控制直升机转子的速度。 结冰检测器通过将RPM调整信号的变化时间速率与时间变化率的预定阈值进行比较来检测直升机转子上是否存在积冰。

公开(公告)号：US20180370639A1

公开(公告)日：2018-12-27

申请号：US15893143

申请日：2018-02-09

Applicant: JONATHAN D. ALMOND

Inventor： JONATHAN D. ALMOND

IPC: B64D15/22 ,  B64D15/20 ,  G05D1/08 ,  B64D31/06 ,  B64C39/02

Abstract: A system includes a signal monitor to monitor a time rate of change of a revolutions per minute (RPM) trim signal that is received from an RPM command path to control a velocity of a helicopter rotor. An icing detector detects for the presence of ice accumulation on the helicopter rotor by comparing the time rate of change of the RPM trim signal to a predetermined threshold for the time rate of change.

公开(公告)号：US20190112056A1

公开(公告)日：2019-04-18

申请号：US16222738

申请日：2018-12-17

Applicant: JONATHAN D. ALMOND

Inventor： JONATHAN D. ALMOND

IPC: B64D15/22 ,  B64D15/20 ,  G05D1/08 ,  B64C39/02 ,  B64D31/06

CPC classification number: B64D15/22 ,  B64C39/024 ,  B64C2201/024 ,  B64C2201/141 ,  B64D15/20 ,  B64D31/06 ,  G05D1/0816

Abstract: A system includes a signal monitor to monitor a time rate of change of a revolution per minute (RPM) trim signal that is received from an RPM command path to control a velocity of a helicopter rotor. An icing detector detects for the presence of ice accumulation on the helicopter rotor by comparing the time rate of change of the RPM trim signal to a predetermined threshold for the time rate of change.