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How power will be transmitted wirelessly to wireless transmitters

As an alternative to battery power, wireless power transfer improves process control and can pay for itself through reduced variability and higher profitability.

By Henry W. Boger, consultant
Feb 13, 2017

Imagine it’s 2022: XYZ Process Automation announced today at Hannover Messe the launch of a full complement of process control instrumentation based on wireless power transfer. XYZ spokesman Kurt Schindler said, “This is the dawn of a new age in process control. Although wireless transmitters have been available from several suppliers, these have required batteries for power supply, with the necessity to replace batteries periodically, and with compromise in update timing of measurements to extend battery life. Now, power will be provided to each device from one or more radio frequency (RF) transmitters. Each process device will be equipped with a suitable RF receiver, which will provide power to the device. A power storage element, such as a capacitor, may be included. For the first time, a wireless digital valve positioner (controller) is available with sufficient power to operate the control valve. This technology is based on a landmark patent application by Boger 1. Be aware that patent protection of this technology is in force.” At the XYZ Process Automation exhibit, a live demonstration is ongoing, and is attracting a great deal of attention.

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