Sensor quality

Definition

Sensor quality consists of the following attributes

Reflecting the real state

The operators rely of the information obtained by the sensor. Critical failures are due to providing false information.

Example - TMI PORV state

A critical operational error was due to sensing the command to the valve, instead of the actual valve state.

Example - Air Peru 603

The pilots struggled to navigate the aircraft after the failure of several of its cockpit instruments. With the pilots unaware of their true altitude, the aircraft wing hit the water and it crashed shortly afterwards. The cause of the instrument failure was a maintenance worker's failure to remove tape covering the static ports necessary to provide correct instrument data to the cockpit.

Sensor design

The sensors should provide specific values signifying the unavailability of measurements

Related topic


Updated on 14 Mar 2017.