Leakage detection device
AssigneeSMC Corporation
InventorsKoichi KATSUMATA, Yuta OSHIMA
Life of this patent
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Abstract
A leakage detection device for detecting leakage of compressed gas includes a microphone that collects an ultrasonic signal which is converted into an electrical signal and outputted. Lock-in amplifiers extract one of the electrical signals having a specific frequency corresponding to a leakage and a calculation circuit calculates a physical amount corresponding to an amplitude value of the signal having the specific frequency. A notification device provides a notification to a user depending on the physical amount calculated by the calculation circuit.
Claims7
A leakage detection device for detecting leakage of compressed gas, comprising:
- a microphone that collects an ultrasonic signal, converts the ultrasonic signal into an electric signal, and outputs the electric signal;
- a lock-in amplifier that extracts a signal with a specific frequency corresponding to the leakage, based on the electric signal;
- a calculation circuit that calculates a physical quantity corresponding to an amplitude value of the signal with the specific frequency;
- and
- a notification device that notifies a user in accordance with the physical quantity calculated by the calculation circuit.
Dependencies are inferred from the claim text.