ERICK CHRISTIAN NEHLS, III
Pilots in Scottsdale, AZ

License number
Arizona A3938105
Issued Date
Aug 2015
Expiration Date
Aug 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
PO Box 14314, Scottsdale, AZ 85267

Professional information

Erick Nehls Photo 1

Magnetic Checkpoint

US Patent:
2003021, Nov 13, 2003
Filed:
Aug 30, 2001
Appl. No.:
09/945494
Inventors:
James Lenz - Brooklyn Park MN, US
Erick Nehls - Scottsdale AZ, US
Howard French - Falcon Heights MN, US
Gordon Rouse - Arden Hills MN, US
International Classification:
G08G001/01
US Classification:
340/941000
Abstract:
A vehicle detecting system and method for use on a specific location such as an airport, including a sensor string nominally perpendicular to the direction of vehicle travel at the location. The sensor string includes at least one magnetic field sensor and a transmitter for transmitting signals from the at least one sensor to a monitoring point. A plurality of sensors is preferred. The transmitter includes a control unit for receiving the signals and a sender for sending the signals to the monitoring point. The preferred magnetic field sensor is a magnetoresisteive sensor having a field range of at least ±5 gauss. A preferred location for the sensor string is in a groove in the surface.