METHOD OF PRODUCING MEDIUM- TO THIN- FILM PRESSURE AND HUMIDITY SENSORS BY FLEXOGRAPHIC PRINTING

摘要

A means is described for making low-cost pressure and humidity sensors using flexographic printing methods, carbon-resistive inks, and flexible substrates. Specifically described are low-cost sensors for measuring applied pressure and monitoring the position or orientation of moveable objects such as joints and the opening and closing of lids, doors or windows. The invention can also be applied to the monitoring of humidity. A means of measuring atmospheric (environmental) pressure using a flexible bubble coated with flexographically- applied carbon-resistive ink is also described.