A Second Generation In-Car Tire Pressure Monitoring System Based on Wireless Passive SAW Sensors

Dixon, B.; Kalinin, V.; Beckley, J.; Lohr, R.

doi:10.1109/freq.2006.275414

Cited by 65 publications

(26 citation statements)

References 5 publications

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“…Due to the deeper penetration depth of electromagnetic waves at low operating frequency, the interrogation of SAW sensors is mainly focused on the European industrial, scientific and medical (ISM) band centered in 434 MHz whose narrow bandwidth is only compatible with a resonator configuration. It is helpful for measurements in dielectric media such, as tires as discussed in Dixon et al (2006).…”

Section: Introductionmentioning

confidence: 99%

Near-field interrogation of SAW resonators on rotating machinery

Boccard

Katus

Renevier

et al. 2013

J. Sens. Sens. Syst.

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Abstract. Surface acoustic wave (SAW) resonators electrically behave like LCR circuits, their frequency can be influenced by temperature, pressure and torque. When they are used for passive wireless sensing on rotating machinery, they can also be influenced by the angular variations of the coupling between the coupler elements and the receiving coupler element impedance. This parasitic frequency shift is known as the "pulling effect". In this paper, we present a capacitive coupler based on open coplanar strip lines for physical measurements on a small diameter rotating shaft. This approach allows a single 434 MHz resonator angular frequency pulling lower than 200 Hz (0.46 ppm) and 100 Hz (0.23 ppm) in a differential configuration. This is more than 10 times lower compared to frequency pulling obtained using couplers based on circular and electrically shorted transmission lines. RADAR-based interrogation, finite element method (FEM) simulation, coupler parameters and frequency pulling measurements results are presented to demonstrate the performances of the complete system.

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Section: Introductionmentioning

confidence: 99%

Near-field interrogation of SAW resonators on rotating machinery

Boccard

Katus

Renevier

et al. 2013

J. Sens. Sens. Syst.

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“…First generation of TPMS was based on MEMS pressure sensors and battery-powered active transmitters positioned in every wheel [8]. The use of SAW sensors offers the most promising solution for batteryless second generation TPMS [9,10]. In a longer term, implantable blood pressure sensors are envisioned.…”

Section: Introductionmentioning

confidence: 99%

High precision pressure sensors based on SAW devices in the GHz range

Rodríguez-Madrid

Iriarte

Williams

et al. 2013

Sensors and Actuators A: Physical

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In this paper, an AIN/free-standing nanocrystalline diamond (NCD) system is proposed in order to process high frequency surface acoustic wave (SAW) resonators for sensing applications. The main problem of synthetic diamond is its high surface roughness that worsens the sputtered AIN quality and hence the device response. In order to study the feasibility of this structure, AIN films from 150 nm up to 1200 nm thick have been deposited on free-standing NCD. We have then analysed the influence of the AIN layer thickness on its crystal quality and device response. Optimized thin films of 300 nm have been used to fabricate of one-port SAW resonators operating in the 10-14 GHz frequency range. A SAW based sensor pressure with a sensibility of 0.33 MHz/bar has been fabricated.

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“…Furthermore, a few methods that rely on the transfer of electric power from the chassis to the tire have also been devised utilizing RFID technology (Dixon et al 2006;Ho et al 2009). This paper presents two methods of energy harvesting utilizing PZT benders as well as a novel method based on variable compression of PZT plates for the operation of the tire pressure monitoring sensor.…”

Section: Introductionmentioning

confidence: 98%

Battery-and wire-less tire pressure measurement systems (TPMS) sensor

Makki

Pop‐Iliev

2012

Microsyst Technol

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This paper focuses on the design and development of a tire pressure measurement systems (TPMS) sensor powered by on-the-go piezoelectric energy harvesting. The prime research motivation was to achieve replacement of a limited capacity power source such as a battery with an on-the-go power generation method in order to enhance TPMS lifespan and simplify the design, with the former having greater priority. Very low cost and highly flexible piezoceramic (PZT) bender elements are used to generate power inside the automobile wheel assembly thereby replacing the battery and eliminating the need for a motion sensing mechanism and/or circuitry since PZT harvesters only produce power during wheel rotation. A fully operational sensor configuration which proves the feasibility of PZT based energy harvesting as a substitute for a permanent power source is discussed in detail.

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A Second Generation In-Car Tire Pressure Monitoring System Based on Wireless Passive SAW Sensors

Cited by 65 publications

References 5 publications

Near-field interrogation of SAW resonators on rotating machinery

Near-field interrogation of SAW resonators on rotating machinery

High precision pressure sensors based on SAW devices in the GHz range

Battery-and wire-less tire pressure measurement systems (TPMS) sensor

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