Disposable wireless pressure sensor

a wireless pressure sensor and wireless technology, applied in the field of sensing devices and applications, can solve the problems of inability of conventional saw sensing systems to meet the demand in low pressure applications, inability to accurately sensing air pressure and temperature, and inability to accurately measure air pressure and temperature. the effect of thermal conductivity

Inactive Publication Date: 2006-05-25
HONEYWELL INT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0016] A first bonding layer can be formed between the dielectric polymer substrate and the piezoelectric polymer layer. Also, a second bonding layer can be formed between the IDT layer and the piezoelectric polymer layer. A protective cover layer can also be configured above the IDT layer. The IDT layer can be formed as a plurality of IDT fi

Problems solved by technology

One of the problems with current SAW sensor designs, particularly those designs adapted to delicate pressure and temperature sensing applications, is the inability of conventional SAW sensing systems to meet the demand in low pressure applications.
Such systems are inherently expensive, awkward, and often are not reliable in accurately sensing air pressure and temperature.
To date, such components have not been adequately achieved.
Such devices are disadvantageous for m

Method used

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Examples

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Embodiment Construction

[0022] The particular values and configurations discussed in these non-limiting examples can be varied and are cited merely to illustrate at least one embodiment of the present invention and are not intended to limit the scope of the invention.

[0023]FIG. 1 illustrates a side view of a disposable wireless pressure sensor system 100, which can be implemented in accordance with a preferred embodiment. FIG. 2 illustrates a top view of the disposable wireless pressure sensor system 100 depicted in FIG. 1, in accordance with a preferred embodiment. Note that in FIGS. 1-2, identical or similar parts are generally indicated by identical reference numerals. System 100 generally includes a dielectric polymer substrate 102.

[0024] A microstrip antenna 104 can be formed upon the dielectric polymer substrate 102. Additionally, a piezoelectric polymer layer 106 can be formed above the dielectric polymer substrate, while an interdigital (IDT) layer 108 can be configured upon the piezoelectric pol...

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Abstract

In general, a dielectric polymer substrate provided and an antenna formed upon the dielectric polymer substrate. A piezoelectric polymer layer (e.g., a polyvinylidene fluoride (PVDF) piezoelectric film) can be formed above the dielectric polymer substrate. Additionally, an interdigital (IDT) layer can be configured upon the PVDF piezoelectric layer, thereby permitting the piezoelectric polymer layer and the IDT layer to detect pressure data and transmit the data to a receiver via the antenna.

Description

TECHNICAL FIELD [0001] Embodiments are generally related to sensing devices and applications. Embodiments are also related to pressure sensor devices, systems and methods thereof. Embodiments are additionally related to disposable sensing devices based on piezoelectric polymer film materials. Embodiments are additionally related to medical devices for sensing bodily pressure based on fluid within a conduit. BACKGROUND OF THE INVENTION [0002] A variety of sensors can be utilized to detect conditions, such as pressure and temperature. The ability to detect pressure and / or temperature is an advantage to any device exposed to variable pressure conditions, which can be severely affected by these conditions. An example of such a device is a catheter, which of course, can experience variations in both temperature and pressure. Many different techniques have been proposed for sensing the pressure and / or temperature in catheters, and for delivering this information to an operator so that he ...

Claims

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Application Information

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IPC IPC(8): G01L9/00
CPCA61B5/0002A61B5/0215A61B2560/0412A61B2562/02G01L9/0025
Inventor LIU, JAMES Z.COOK, JAMES D.DIERAUER, PETER P.
Owner HONEYWELL INT INC
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