Abstract: A fuel control system having an auxiliary circuit for correcting the signals generated by a pressure sensor under transient operating conditions is disclosed. The circuit generates a pressure correction signal directly proportional to the first time derivative of the intake manifold pressure and inversely proportional to rotational speed of the engine which is added to the signal generated by the pressure sensor. The added signals are utilized by the electronic control unit for computing the fuel requirements of the engine to maintain a constant fuel/air ratio during steady state and transient operating conditions.

Abstract: An integrating angular accelerometer for measuring angular rate of a rotating body has a stationary cylindrical inertial mass supported by a low drag hydrostatic bearing concentrically in a housing rotatable relative thereto and filled with a viscous fluid. An annular channel of laminar dimensions is formed between the inertial mass and housing and a vane is arranged in the channel to block fluid flow caused by rotation of the housing relative to the inertial mass. The differential pressure in the channel at opposite sides of the vane provides a signal corresponding to the rate of rotation of the housing relative to the inertial mass.