Title:
VIBRATION RECTIFICATION ERROR CORRECTION DEVICE, SENSOR MODULE, AND VIBRATION RECTIFICATION ERROR CORRECTION METHOD
Document Type and Number:
Japanese Patent JP2022104344
Kind Code:
A
Abstract:
To provide a vibration rectification error correction device that can improve resolution for correcting a vibration rectification error.SOLUTION: A vibration rectification error correction device comprises: a first filter that operates in synchronization with a measured signal; and a second filter that operates in synchronization with a reference signal. The first filter generates a third signal based on a first signal having a first group delay amount and a second signal having a second group delay amount, and the second filter receives input of a signal based on the third signal and outputs a fourth signal. A first vibration rectification error included in a fifth signal output from the second filter if the first signal is input to the second filter, and a second vibration rectification error included in a sixth signal output from the second filter if the second signal is input to the second filter have different polarities.SELECTED DRAWING: Figure 20
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Inventors:
GOHARA MASAYOSHI
Application Number:
JP2020219504A
Publication Date:
July 08, 2022
Filing Date:
December 28, 2020
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
G01P21/00; G01P15/10; G01P15/18
Attorney, Agent or Firm:
Fuse Yukio
Michie Obuchi
川▲崎▼ 通
Mitsufumi Matsumoto
Michie Obuchi
川▲崎▼ 通
Mitsufumi Matsumoto