Leakage position calculation device, leakage position calculation method, computer-readable recording medium, vibration calculation device, and computation device

A leakage position calculation method comprising:

• calculating a time difference Δt1 between detection timing of a peak of vibration indicating a first vibration component in a pipe and detection timing of a peak of vibration indicating a second vibration component in the pipe based on a measurement result by a first vibration detector attached to the pipe, the first vibration component and the second vibration component being vibration components different in vibration mode with each other and being obtained based on a measurement result by the first vibration detector;
• calculating a time difference Δt2 between detection timing of a peak of vibration indicating the first vibration component in the pipe and detection timing of a peak of vibration indicating the second vibration component in the pipe based on a measurement result by a second vibration detector attached to the pipe separately from the first vibration detector in an extending direction of the pipe, the first vibration component and the second vibration component being vibration components different in vibration mode with each other and being obtained based on a measurement result by the second vibration detector;
• and
• calculating a leakage position in the pipe by using the time difference Δt1, the time difference Δt2, and a space interval I between the first vibration detector and the second vibration detector.

A non-transitory computer-readable recording medium storing a program causing a computer to function of:

• calculating a time difference Δt1 between detection timing of a peak of vibration indicating a first vibration component in a pipe and detection timing of a peak of vibration indicating a second vibration component in the pipe based on a measurement result by a first vibration detector attached to the pipe, the first vibration component and the second vibration component being vibration components different in vibration mode with each other and being obtained based on a measurement result by the first vibration detector;
• calculating a time difference Δt2 between detection timing of a peak of vibration indicating the first vibration component in the pipe and detection timing of a peak of vibration indicating the second vibration component in the pipe based on a measurement result by a second vibration detector attached to the pipe separately from the first vibration detector in an extending direction of the pipe, the first vibration component and the second vibration component being vibration components different in vibration mode with each other and being obtained based on a measurement result by the second vibration detector;
• and
• calculating a leakage position in the pipe by using the time difference Δt1, the time difference Δt2, and a space interval I between the first vibration detector and the second vibration detector.