Optimized, practical firmware design for a novel flexible wireless multi-sensor platform for body activity and vitals monitoring

Jaggernauth, Camille; Chuo, Yindar; Hung, Benny; Lin, Pao Tai; Kaminska, Bożena

doi:10.1109/icce.2011.5722733

Cited by 3 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Traditionally, the thermal convection technology are applied with accelerometers and made on silicon wafers [1][2][3][4], the chamber is filled with air, CO 2 , liquid, or others. As shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

“…The second new idea is that it is made on a polyimide substrate, the thermal conductivity of polyimide (0.06-0.0017 W/(cm-K)) is about twenty-fifth of the silicon (1.48 W/(cm-K)), thus it can save more power. The third new idea is to use xenon inert gas in the chamber for heat convection instead of the previous CO 2 , which can produce oxidation effect to the heater and thermal sensors [1][2][3][4], while the xenon gas will not and can increase the heater reliability and life cycle. Besides, the Xe molecular weight (131.29 g/mol) is three times of CO 2 (44.01 g/mol), so it can yield quicker time response.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Novel Wireless Energy Saving and Reliable Angular Accelerometer on Engineering Polyimide with Xenon Gas Filled in Chamber

Lin

Liaw

Luo

et al. 2013

AMR

View full text Add to dashboard Cite

Four novel ideas are proposed in this paper to integrate an active RFID tag with thermal convection angular accelerometer on an engineering plastic substrate, thus the device is a wireless sensor. The first innovative idea is that this device is without any movable parts, so it is very reliable. The second new idea is that it is made on an engineering plastic substrate, such as polyimide, the thermal conductivity is much lower than silicon, so it can save more power and very useful for mobile operation. The third new idea is that the xenon gas is applied in the chamber for heat convection instead of CO2 used in the traditional thermal convection accelerometer. Carbon dioxide can produce oxidation effect to the heater and thermal sensors, while the inert gas xenon will not. The fourth new idea is the most powerful one to integrate with an active RFID tag on the same substrate, thus it is very useful for mobile operation, and is very easy for usage and fabrication. If one considers sensitivity as the first priority, then choose the floating structure (233°C/(rad/s2)). On the other hand, if the response speed is the requirement, then the non-floating structure is better (70μs).

show abstract

Section: Introductionmentioning

confidence: 99%