Goniometer

Goniometer

In radio frequency (RF) antenna systems, a goniometer refers to a device that is used for sensing the direction of an incoming signal. The device is made up of two fixed loops of wire that are positioned at 90 degrees from each other. These loops are capable of independently sensing the strength of the signal received and transmitting these signals to two rotors that are also oriented at 90 degrees.

The rotors are connected to a direction-indicating needle of the goniometer that is rotated by a small motor until the minimum magnetic field is sensed near the rotors. This allows the goniometer to accurately determine the direction of the incoming signal. The device is fully sealed to avoid any interference from outside sources that may affect the accuracy of the measurements.

In summary, a goniometer is a direction-sensing device used in RF antenna systems that utilizes two fixed loops of wire and two rotors to accurately determine the direction of an incoming signal.