P1I-5 Micro-Machined, All Quartz Package, Passive Wireless SAW Pressure and Temperature Sensor

Pressure and Temperature Microsensor Based on Surface Acoustic Wave in TPMS

“…Due to their advantages of wireless and averting the need for power supply at the sensor location, SAW sensors are able to be used in such moving and harsh conditions as tire pressure monitoring (Ballandras et al, 2006). In practical applications, such as tire pressure monitoring systems, it is necessary to measure both pressure and temperature simultaneously.…”

A coupled-mode filter structure for wireless transceiver-sensors using reactive loads

“…For resonators operating in the 434 MHz ISM band, measuring electrical characteristics influenced by parametric changes (capacitance, selfinductance, resistance) reveals challenging using standard single port resonators. Particularly, a reliable and accurate measurement requires differential sensor structures [3]. This approach generally is achieved using two resonators with one loaded by the variable charge and the other is used as reference.…”

Pressure and temperature microsensor based on surface acoustic wave

“…Because of their advantages of being wireless and averting the need for a power supply at the sensor location, SAW sensors are able to be used in such moving and harsh conditions as tyre pressure monitoring [5]. In practical applications, such as tyre pressure monitoring systems (TPMS), it is necessary to measure both pressure and temperature simultaneously [5][6][7]. The common solution is to use more than one sensing unit to measure pressure and temperature separately, in which case, however, the whole structure of the SAW sensor is complicated for manufacturing and packaging [5,6].…”

“…In practical applications, such as tyre pressure monitoring systems (TPMS), it is necessary to measure both pressure and temperature simultaneously [5][6][7]. The common solution is to use more than one sensing unit to measure pressure and temperature separately, in which case, however, the whole structure of the SAW sensor is complicated for manufacturing and packaging [5,6]. The preliminary design theory of a novel wireless and passive SAW microsensor, which comprises a single sensing unit and is able to measure real-time pressure and temperature accurately, was suggested by the authors recently [7].…”

“…Because of their advantages of being wireless and averting the need for a power supply at the sensor location, SAW sensors are able to be used in such moving and harsh conditions as tyre pressure monitoring [5]. In practical applications, such as tyre pressure monitoring systems (TPMS), it is necessary to measure both pressure and temperature simultaneously [5][6][7].…”