Abstract: Acoustic and other activity detection signaling is provided herein. Operations of a method can include determining a micro-electromechanical system (MEMS) device is no longer in an initialization state and receiving a first signal that instructs the MEMS device to perform event activity detection. The method can also include receiving one or more event signals and determining that an event signal of one or more event signals satisfies a defined event characteristic. The method can also include outputting a second signal that comprises information indicative of a detection of event activity at the MEMS device being more than the defined event characteristic.

Abstract: A device includes a micro-electromechanical system (MEMS) element configured to sense acoustic signals. The device also includes a circuitry configured to enable the microphone element to sense the acoustic signals. The circuitry is further configured to disable the microphone element to prevent the microphone element to sense the acoustic signals. It is appreciated that the circuitry is further configured to apply a test signal to the MEMS element when the microphone element is disabled. The microphone element outputs a signal in response to the test signal to the circuitry. The circuitry in response to the output signal with a first value determines that a diaphragm of the MEMS element is nonoperational and the circuitry in response to the output signal with a second value determines that the diaphragm of the MEMS element is operational.

Abstract: A device includes a micro-electromechanical system (MEMS) element configured to sense acoustic signals. The device also includes a circuitry configured to enable the microphone element to sense the acoustic signals. The circuitry is further configured to disable the microphone element to prevent the microphone element to sense the acoustic signals. It is appreciated that the circuitry is further configured to apply a test signal to the MEMS element when the microphone element is disabled. The microphone element outputs a signal in response to the test signal to the circuitry. The circuitry in response to the output signal with a first value determines that a diaphragm of the MEMS element is nonoperational and the circuitry in response to the output signal with a second value determines that the diaphragm of the MEMS element is operational.

Abstract: A device includes a micro-electromechanical system (MEMS) element configured to sense acoustic signals. The device also includes a circuitry configured to enable the microphone element to sense the acoustic signals. The circuitry is further configured to disable the microphone element to prevent the microphone element to sense the acoustic signals. It is appreciated that the circuitry is further configured to apply a test signal to the MEMS element when the microphone element is disabled. The microphone element outputs a signal in response to the test signal to the circuitry. The circuitry in response to the output signal with a first value determines that a diaphragm of the MEMS element is nonoperational and the circuitry in response to the output signal with a second value determines that the diaphragm of the MEMS element is operational.

Abstract: A method is described for the controlled purging of the fuel feeding system in the combustor of a gas turbine comprising at least one compressor, capable of compressing the air introduced into it through an inlet duct, at least one combustor, in which said compressed air is mixed and combusted with a gaseous fuel coming from a feeding duct, and at least one turbine, capable of transforming the energy of the combusted gas coming from said combustion chamber into work energy which can be exploited for activating one or more operating machines. The combustor is equipped with one or more burners, each equipped with at least one pilot injector and one or more main injectors for the adduction of the gaseous fuel inside the burner. The method comprises purging at least part of the main injectors and relative manifolds with a stream of gaseous fuel when the turbine is in diffusive flame functioning mode.