Development of a Torque Measurement Method on a Rotating Shaft Using a Battery-Less Sensor Nissan Motor Company Limited

Format:

Conference/Event

Author/Creator:

Hashimoto, Hashimoto, author.

Contributor:

Kanda, Yasuhiro

Onishi, Koichi

Conference Name:

SAE 2012 World Congress & Exhibition (2012-04-24 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2012

Summary:

This paper describes the design, fabrication and evaluation of a TDMA (time division multiple access) passive wireless torque sensor using 2.45 GHz surface acoustic wave (SAW) delay lines. The SAW torque sensor consists of a sensor element fabricated on a LiNbO₃ substrate and a support element. The sensor element is a strain-detection thin substrate, on which an interdigital transducer (IDT) and reflectors are fabricated. The support element converts torque force to strain that changes geometrical dimensions of the sensor element. Torque measurement was successfully demonstrated in a torque range of -1000~1000 Nm under static condition. The influence of rotation on wireless transmission of the sensor was also investigated. On condition that a shaft with the sensor was rotated step by step, we found that wireless communication was successfully demonstrated using two flexible antennas and a power divider

Notes:

Vendor supplied data

Publisher Number:

2012-01-0909

Access Restriction:

Restricted for use by site license