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 (528, 530, 534) 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 (528, 530, 534) 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 (528, 530, 534) 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.