A system for monitoring operation of a valve , comprising: a sensor component comprising a first sensor and a second sensor, wherein the first sensor is placed at a first location proximate the valve and the second sensor at a second location spaced apart from the first location, and a processing component that couples with the sensor component , the processing component comprising a processor, memory, and executable instructions stored in the memory and configured to be executed by the processor, the executable instructions comprising instructions for: receiving signals from the sensor component , the signals comprising data from the first sensor and the second sensor; sampling the data from the signals to create data samples comprising a first sample , a second sample , and a third sample , wherein the first sample of data is obtained from a first signal that arises from the first sensor, the second sample of data is obtained from the first signal that comprises a first delay , and the third sample of data is obtained from a second signal that arises from the second sensor, wherein the third sample comprises a second delay that is different from the first delay ; combining the data samples to form an energy signature for the valve by adding the first sample and the second sample to form a first preliminary sample and subtracting the third sample from the first preliminary sample , and generating an output comprising data manifesting the energy signature . a sensor component comprising a first sensor and a second sensor, wherein the first sensor is placed at a first location proximate the valve and the second sensor at a second location spaced apart from the first location, and a processing component that couples with the sensor component , the processing component comprising a processor, memory, and executable instructions stored in the memory and configured to be executed by the processor, the executable instructions comprising instructions for: receiving signals from the sensor component , the signals comprising data from the first sensor and the second sensor; sampling the data from the signals to create data samples comprising a first sample , a second sample , and a third sample , wherein the first sample of data is obtained from a first signal that arises from the first sensor, the second sample of data is obtained from the first signal that comprises a first delay , and the third sample of data is obtained from a second signal that arises from the second sensor, wherein the third sample comprises a second delay that is different from the first delay ; combining the data samples to form an energy signature for the valve by adding the first sample and the second sample to form a first preliminary sample and subtracting the third sample from the first preliminary sample , and generating an output comprising data manifesting the energy signature . receiving signals from the sensor component , the signals comprising data from the first sensor and the second sensor; sampling the data from the signals to create data samples comprising a first sample , a second sample , and a third sample , wherein the first sample of data is obtained from a first signal that arises from the first sensor, the second sample of data is obtained from the first signal that comprises a first delay , and the third sample of data is obtained from a second signal that arises from the second sensor, wherein the third sample comprises a second delay that is different from the first delay ; combining the data samples to form an energy signature for the valve by adding the first sample and the second sample to form a first preliminary sample and subtracting the third sample from the first preliminary sample , and generating an output comprising data manifesting the energy signature . <EOS>