Abstract: A sensor array includes a base for providing a probe signal and a plurality of modular recording sites. Each modular recording site of the plurality of modular recording sites is configured for receiving a signal, for converting the signal into a digital sensor signal and to provide the digital sensor signal to the base. The base is configured for receiving a plurality of digital sensor signals from the plurality of modular recording sites and to process the plurality of digital sensor signals so as to provide the probe signal.

Abstract: A sensor array comprises a base for providing a probe signal and a plurality of modular recording sites. Each modular recording site of the plurality of modular recording sites is configured for receiving a signal, for converting the signal into a digital sensor signal using an in-situ analog-to-digital converter and to provide the digital sensor signal to the base using a communication interface. The communication interfaces of the plurality of modular recording sites are connected serially with respect to each other and to the base and each in-situ analog-to-digital converter is configured for operating in a first operating mode and in a second operating mode. The base is configured for receiving a plurality of digital sensor signals from the plurality of modular recording sites and to process the plurality of digital sensor signals so as to provide the probe signal.

Abstract: A method adapts a resonant frequency of a first filter of a closed control loop to a given frequency. The method includes feeding an output signal of a delta sigma modulator of the closed control loop into a frequency adaptation circuit and determining a first noise spectrum of the output signal in a first frequency band and a second noise spectrum of the output signal in a second frequency band. The first frequency band and the second frequency band are arranged symmetrically with respect to the given frequency. The method includes comparing the first noise spectrum with the second noise spectrum, generating an adaptation signal that causes a frequency adaptation of the resonant frequency if the first noise spectrum differs from the second noise spectrum, and outputting the adaptation signal from the frequency adaptation circuit to a control input of the first filter for adapting the resonant frequency.

Abstract: A sensor array includes a base for providing a probe signal and a plurality of modular recording sites. Each modular recording site of the plurality of modular recording sites is configured for receiving a signal, for converting the signal into a digital sensor signal and to provide the digital sensor signal to the base. The base is configured for receiving a plurality of digital sensor signals from the plurality of modular recording sites and to process the plurality of digital sensor signals so as to provide the probe signal.

Abstract: A method adapts a resonant frequency of a first filter of a closed control loop to a given frequency. The method includes feeding an output signal of a delta sigma modulator of the closed control loop into a frequency adaptation circuit and determining a first noise spectrum of the output signal in a first frequency band and a second noise spectrum of the output signal in a second frequency band. The first frequency band and the second frequency band are arranged symmetrically with respect to the given frequency. The method includes comparing the first noise spectrum with the second noise spectrum, generating an adaptation signal that causes a frequency adaptation of the resonant frequency if the first noise spectrum differs from the second noise spectrum, and outputting the adaptation signal from the frequency adaptation circuit to a control input of the first filter for adapting the resonant frequency.

Abstract: A method for adjusting the resonance frequency of a loop filter in a delta-sigma modulator includes input of a filter input signal of a loop filter into a frequency adjustment circuit and determination of a noise spectrum of the filter input signal in a first frequency band and a second frequency band. The first frequency band and the second frequency band are arranged symmetrically around the predetermined frequency. The method includes comparison of the noise spectra and creation of an adjustment signal that leads to a frequency adjustment when the noise spectra deviate from one another. The method also includes feedback of the adjustment signal of the frequency adjustment circuit to a control input of the loop filter for setting the filter frequency in response to the comparative result.

Abstract: The present invention relates to a method for adjusting the resonance frequency of a loop filter in a delta-sigma modulator, e.g. in an angular rate sensor, to a predetermined frequency value, wherein the sigma-delta modulator comprises an input terminal, which is connected to the loop filter, a quantizer, which is connected to an output of the loop filter, and a feedback branch, which couples an output of the quantizer back to the input terminal.