SENSING METHODS AND APPARATUS

摘要

We describe a particulate sensor for an aircraft, the sensor comprising: a duct for carrying an air flow bearing particulates to be sensed; an electrically conductive mesh or grid, mounted on an insulating support in said air flow; and sensor electronics, coupled to said electrically conductive mesh or grid, configured to detect a signal on said electrically conductive mesh or grid from charged particulates in said air flow flowing through said electrically conductive mesh or grid.