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Piezo-powered sensor card and method therefor

A sensor, piezoelectric power technology, applied in piezoelectric/electrostrictive/magnetostrictive devices, piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, etc., can solve the loss of charge, Issues such as manufacturing hermetic or packaging complexities

Inactive Publication Date: 2014-06-25
PALO ALTO RES CENT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For powering electronic circuits, printed batteries are often discussed, but printed batteries have several disadvantages
Batteries use electrolytes which make manufacturing (particularly with regard to sealing or packaging) relatively complex, in addition batteries lose charge over time

Method used

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  • Piezo-powered sensor card and method therefor
  • Piezo-powered sensor card and method therefor
  • Piezo-powered sensor card and method therefor

Examples

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Embodiment Construction

[0023] In one form, the presently described embodiments relate to an electronic sensor device or card powered by a piezoelectric source, such as a tape or foil, and including an electronic sensing element and a display element. In at least some forms, elements of the card are printed on the device or card. The card or device may be used to test for the presence of substances such as gases, liquids, chemical or biological substances. For example, the device can detect the presence of oxygen, hydrogen sulfide, or chlorine, as described below with respect to Figure 1(a). In this regard, in one form, when the device is exposed to a substance, the electronic state (e.g., resistance or capacitance) of an electronic sensing element (e.g., a transistor) changes (e.g., affects the color of a connected display element), allowing the use of The material was detected visually.

[0024] Referring more particularly to Figure 1(a), device 10 is shown. Device 10 includes substrate 15 and d...

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PUM

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Abstract

An electronic sensor device, powered by a piezoelectric source and including an electronic element, is provided. The device may be used to test for the presence of substance such as a gas, a liquid, a chemical substance or a biological substance, etc. When the device is exposed to the substance, the electronic state (resistance / capacitance) of the electronic element (such as a transistor) changes (e.g. impacts the color of a connected display element) to allow for visual detection of the substance by a user.

Description

Background technique [0001] Printed electronics enable the integration of electronic, optical and other functions into products at potentially ultra-low cost. For powering electronic circuits, printed batteries are often discussed, but printed batteries have several disadvantages. Batteries use electrolytes that make manufacturing relatively complicated, especially with regard to sealing or packaging, and moreover, batteries lose charge over time. Piezoelectric power supplies can be more easily manufactured in smaller form factors, and there is less of a problem of becoming inoperative due to loss of charge. Contents of the invention [0002] In one aspect of the presently described embodiments, a device includes: a substrate; a piezoelectric power source on the substrate; a plurality of sensing elements on the substrate connected to the piezoelectric power source, the a sensing element operable to change an electronic state upon detection of a substance; and a plurality o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/04G01N27/22
CPCG06F3/043H02N2/18H10N30/857G01N27/04
Inventor J·H·丹尼尔
Owner PALO ALTO RES CENT INC
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