Patent ID: 11881102
Assignee: SEIKO EPSON CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 3:
4. The measurement method according to claim 1, wherein
for an integer n of 2 or more, between the first observation point and the second observation point, the third observation point to an (n+2)th observation point are arranged along the first direction,
for each integer i of 1 or more and n or less, a deflection waveform at the (i+2)th observation point generated by the plurality of parts is calculated based on the first observation point information, the second observation point information, the predetermined coefficient, and an approximate expression of deflection at the (i+2)th observation point based on the structural model of the structure), and a deflection waveform at the (i+2)th observation point generated by the moving object is calculated by adding the deflection waveform at the (i+2)th observation point generated by the plurality of parts, and a path deflection waveform at the (i+2)th observation point is calculated based on the deflection waveform at the (i+2)th observation point generated by the moving object,
for each integer i, a measurement waveform as a physical quantity at the (i+2)th observation point is calculated based on observation information obtained by an observation device that observes the (i+2)th observation point,
for each integer i, an i-th amplitude coefficient at which an i-th difference is minimized between a measurement waveform at the (i+2)th observation point and a waveform obtained by multiplying a path deflection waveform at the (i+2)th observation point by the i-th amplitude coefficient is calculated, and
the estimation waveform is calculated based on the second path deflection waveform at the central position and an average value of the first to n-th amplitude coefficients.