Inductive Telemetric Measurement Systems for Remote Sensing

Marioli, D.; Sardini, Emilio; Serpelloni, Mauro

doi:10.5772/8732

Cited by 2 publications

(1 citation statement)

References 16 publications

(16 reference statements)

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“…The simulation using software Multisim 11.0 (National Instruments Inc.) about the resonant frequency of device is 24.3 MHz (shown in Figure 9) that is 9.5 percent higher than the measured data 22.2 MHz at 0 bar. The simulation model is shown in Figure 10 that is a simplified equivalent circuit without consideration of the parasitic capacitance (Marioli et al, 2010). The discrepancy between the predicated and measured resonant frequency might be attributed to the initial predeflection that existed during fabrication, so the gap between the upper and lower membranes is smaller than designed one, and that may be the reason of resonant frequency decrease.…”

Section: Figure 3 Typical Impedance Phase Diagramsmentioning

confidence: 99%

Fabrication and measurement of wireless pressure-sensitive micro-device based on high temperature co-fired ceramics technology

et al. 2014

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Purpose – The paper aims to highlight a wireless pressure-sensitive micro-device with high pressure sensitivity and accuracy. It is based on the partially stabilized Zirconia (PSZ) ceramic material which is capable of excellent elasticity and robustness. Design/methodology/approach – The paper begins with a general introduction to the wireless interrogating method and then the fabrication processes of the device using high temperature co-fired ceramic (HTCC) technology are described in detail. Findings – A passive wireless micro-device made from a novel material-PSZ ceramic on pressure monitoring is fabricated and tested and the authors proved that the device possesses an advantages over some proposed wireless sensors on interrogating distance. The pressure sensitivity of the device is 336 kHz/bar at readout distance 2.5 cm and that is an excellent property. Originality/value – The paper shows a new design scheme for wireless pressure measurement. The future application of the wireless device indicates the problem on external packaging and wire connection could be avoided. The allowable interrogation distance between the device and readout circuit reaches 2.5 cm which is mentioned for the first time so far. The distance is long enough to insert a thermal insulation material which can protect the vulnerable readout circuit from harsh environment, so the research finding is meaningful for the modern measurement technology.

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Section: Figure 3 Typical Impedance Phase Diagramsmentioning

confidence: 99%