公开(公告)号：US20220381549A1

公开(公告)日：2022-12-01

申请号：US17838922

申请日：2022-06-13

Applicant: HARMONIC DRIVE SYSTEMS INC.

Inventor： Brian COYNE ,  Yuki KATOH

IPC: G01B7/30 ,  G01D5/14

Abstract: An exemplary encoder assembly includes a substrate, a first encoder, and a second encoder. The substrate has two or more position sensors, each position sensor being configured for detecting a rotary position of a shaft or other rotating element of a machine. The first encoder includes at least one first position sensor of the two or more position sensors. The at least one first position sensor is disposed on the substrate for off-axis alignment with the shaft or other rotating element of the machine. The second encoder includes a second position sensor of the two or more position sensors, the second position sensor being disposed on the substrate for on-axis or off-axis alignment with the shaft or other rotating element of the machine. Each position sensor is configured to detect different or common signal types, and a signal type of the second position sensor excludes optical signals.

公开(公告)号：US20210310834A1

公开(公告)日：2021-10-07

申请号：US17338799

申请日：2021-06-04

Applicant: HARMONIC DRIVE SYSTEMS INC.

Inventor： Brian COYNE ,  Yuki KATOH

IPC: G01D5/249 ,  G01B7/00 ,  G01D5/14

Abstract: An exemplary encoder assembly includes a substrate, a first encoder, and a second encoder. The substrate has two or more position sensors, each position sensor being configured for detecting a rotary position of a shaft or other rotating element of a machine. The first encoder includes at least one first position sensor of the two or more position sensors. The at least one first position sensor is disposed on the substrate for off-axis alignment with the shaft or other rotating element of the machine. The second encoder includes a second position sensor of the two or more position sensors, the second position sensor being disposed on the substrate for on-axis or off-axis alignment with the shaft or other rotating element of the machine. Each position sensor is configured to detect different or common signal types, and a signal type of the second position sensor excludes optical signals.