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US 2019/0195833 A1Published application
Methods and apparatus to generate an acoustic emission spectrum using chirp demodulation
AssigneeFisher Controls International LLC
InventorBret Anthony Dahme
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Abstract
Methods, apparatus, and articles of manufacture are disclosed. An example apparatus includes a pre-amplifier to condition an acoustic emission signal based on an acoustic emission source, a demodulator to generate demodulated acoustic emission data based on combining the acoustic emission signal with a chirp signal, and a transmitter to transmit the demodulated acoustic emission data to a data acquisition system.
Claims22
An apparatus comprising:
- an acoustic emission sensor including:
- a pre-amplifier to condition an acoustic emission signal based on an acoustic emission source;
- a demodulator to generate demodulated acoustic emission data based on combining the acoustic emission signal with a chirp signal;
- and
- a transmitter to transmit the demodulated acoustic emission data to a data acquisition system.
2 more elements
A method comprising:
- conditioning an acoustic emission signal based on an acoustic emission source with a pre-amplifier integrated into an acoustic emission sensor;
- generating a chirp signal;
- combining the acoustic emission signal with the chirp signal;
- generating demodulated acoustic emission data based on the combined signal;
- and
- transmitting the demodulated acoustic emission data to a data acquisition system.
3 more elements
A non-transitory computer readable storage medium comprising instructions which, when executed, cause a machine to at least:
- condition an acoustic emission signal based on an acoustic emission source with a pre-amplifier integrated into an acoustic emission sensor;
- generate a chirp signal;
- combine the acoustic emission signal with the chirp signal;
- generate demodulated acoustic emission data based on the combined signal;
- and
- transmit the demodulated acoustic emission data to a data acquisition system.
3 more elements
22-42. (canceled)
Dependencies are inferred from the claim text.