Patent ID: 7447565

Claim:
An electronic alignment device comprising: at least two accelerometers, said accelerometers being mutually perpendicular to one another; a computing and processing device, said computing and processing device comprising computer implemented means for enabling a user to field calibrate said accelerometers, calculating at least one angle of rotation about an axis in a reference frame, reading and writing data from and to a memory device, and sending data to a feedback device for providing feedback to a user; and means for electrically connecting said accelerometers, said computing and processing device, said feedback device, said memory device and a power source, wherein said computer implemented means for enabling a user to field calibrate said accelerometers includes providing instructions to a user to position said electronic device to capture a first set of positional data, and then providing instructions to the user to turn said electronic alignment apparatus 180° degrees to enable said electronic alignment device to capture a second set of positional data and average said first and second sets of captured data.