STEPHEN GEMMELL
Electrician in Fairbanks, AK

License number
Alaska EADE1257
Issued Date
Oct 8, 1997
Effective Date
Dec 3, 2015
Expiration Date
Dec 31, 2017
Category
Electrical Administrators
Address
Address
PO Box 83182, Fairbanks, AK 99708
LicenseFiles verified this license of Nov 18, 2016 at the Alaska - Department of Commerce, Community, and Economic Development.

Professional information

Stephen Gemmell Photo 1

Turbine Monitoring Apparatus

US Patent:
4881184, Nov 14, 1989
Filed:
Sep 8, 1987
Appl. No.:
7/094563
Inventors:
Frank Abegg - Fairbanks AK
Stephen G. Gemmell - Fairbanks AK
Assignee:
Datac, Inc. - Fairbanks AK
International Classification:
G01L 2500
US Classification:
36455101
Abstract:
A turbine monitoring device is provided for interfacing the control panel of a gas turbine with a standard personal computer. The interface device includes a plurality of isolation circuits for isolating the personal computer from the turbine control panel to prevent ground faults. The interface device also includes scaling circuits to allow a selectable scaling factor to be provided to prefetermined operating signals. The interface device is adapted to receive operating signals from the control panel of the turbine and convert the operating signals into data signals which are suitable for use by the data processor. The interface device of the present invention may be used in conjunction with a variety of data processors which are readily available.

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