Wirelessly interrogable surface acoustic wave sensors for vehicular applications

Pohl, A.; Seifert, F.

doi:10.1109/19.650822

Cited by 79 publications

(35 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Surface Acoustic Wave (SAW) sensors can be used in many different ways to to monitor a tire [1,51]. These sensors consist of a small piece of metal on a piezoelectric film.…”

Section: Surface Acoustic Wave Sensormentioning

confidence: 99%

Investigation into use of piezoelectric sensors in a wheeled robot tire for surface characterization

Armstrong

Sandu

Taheri

2015

Journal of Terramechanics

View full text Add to dashboard Cite

A differential steered, 13.6 kg robot was developed as an intelligent tire testing system and was used to investigate the potential of using piezoelectric film sensors in small tube-type pneumatic tires to characterize tire-ground interaction.One focus of recent research in the tire industry has been on instrumenting tires with sensors to monitor the tire, vehicle, or external environment. On small robots, tire sensors that measure the forces and deflections in the contact patch could be used to improve energy efficiency and/or mobility during a mission.The robot was assembled from a SuperDroid Robots kit and instrumented with low-cost piezoelectric film sensors from Measurement Specialties between the inner tube and the tire. An unlaminated and a laminated sensor were placed circumferentially along the tread and an unlaminated sensor was placed along the sidewall. A slip ring transferred the signals from the tire to the robot. There, the signal conditioning circuit extended the time constant of the sensors and filtered electromagnetic interference. The robot was tested with a controlled power sequence carried out on polished cement, ice, and sand at three power levels, two payload levels, and with two tire sizes.The results suggest that the sensors were capable of detecting normal pressure, deflection, and/or longitudinal strain. Added payload increased the amplitude of the signals for all sensors. On the smaller tires, sensors generally recorded a smaller, wider signal on sand compared to cement, indicating the potential to detect contact patch pressure and length. The signals recorded by the unlaminated sensor along the tread of the smaller tire were lower on ice compared to cement, indicating possible sensitivity to tractive force. Results were less consistent for the larger tires, possibly due to the large tread pattern.

show abstract

“…Surface Acoustic Wave (SAW) sensors can be used in many different ways to to monitor a tire [1,51]. These sensors consist of a small piece of metal on a piezoelectric film.…”

Section: Surface Acoustic Wave Sensormentioning

confidence: 99%

Investigation into use of piezoelectric sensors in a wheeled robot tire for surface characterization

Armstrong

Sandu

Taheri

2015

Journal of Terramechanics

View full text Add to dashboard Cite

show abstract

“…It is one of the best choices for the TPMS sensors. In 1996, Alfred Pohl and F.Seifert started to research the wireless passive SAW sensor used in the tires in University of Technology Vienna (Pohl & Seifert, 1997 Buff et al, 1998). This sensor had better precision and not affected by movement and rotation.…”

Section: Products and Researches For Tpmsmentioning

confidence: 99%

Pressure and Temperature Microsensor Based on Surface Acoustic Wave in TPMS

Li¹,

Hu²,

Xu³

et al. 2010

Acoustic Waves

View full text Add to dashboard Cite

“…A great amount of research has been carried out in the past decades in this field, and, as a result, different wireless SAW sensors have been developed to measure a variety of physical and chemical parameters including temperature, stress, torque, pressure, humidity, magnetic field, chemical vapor etc. [4][5][6][7][8][9]. Several devices are already commercialized [10][11][12].…”

Section: Introductionmentioning

confidence: 99%