English to Portuguese Tech/Engineering Electronics / Elect Eng métodos de ensaio

Further conditioning of this signal by the detonation meter circuitry subtracts away the portion that represents normal or knock-free operation, amplifies and stretches the remaining knock pulse, integrates multiple cycles of the knock pulse to average the engine characteristic, and finally produces a dc output signal proportional to knock for display by the knockmeter.

(...) integrates....to average the engine characteristic (..)