SWING ARM SCANNER

The oscillating arm scanner allows a simple and fast mapping of electromagnetic radiation or any other variation depending on the antenna card fitted to the scanner. Many applications are possible depending on the type of antenna card used.

Applications

2D radiation diagram of an RFID TAG

Objective : Perform a near-field scan of an RFID tag in transmission.

Result : With the swing arm scanner, we placed a tag in communication with a reader under the sensor. The frequency marker is centered on the response frequency of the tag.
Duration / Acquisition: 3 minutes

Mapping an electronic map to locate a disturbance

Objective : Using a loop antenna map (Fc = 16MHz) scan an electronic map to locate a source of disturbance.

Result : The swing arm scanner has located the area of the disturbance. Different measurements have been made with several types of shielding.
Time of the measurement: 3 mn

50 Hz magnetic radiation mapping of a mains power supply.

Objective : With an antenna card sensitive to the magnetic field, scan the radiation of the transformer of a power supply unit.

Result : With the scanner, we were able to quickly visualize the two lobes of the magnetic field radiation of the transformer and its orientation.

Comparison of the radiation of a microcontroller with and without a ground plane

Objective : To measure the radiation of a microcontroller with and without a ground plane.

Result : With the scanner and a suitable antenna board, we were able to quickly and accurately measure the difference in radiation with and without the ground plane.
Total duration of the measurement: 1/2 hour

Mapping the magnetic field generated by a magnet.

Objective : Using a specific antenna board (Hall effect sensor), measure the magnetic field generated by a magnet.

Result : With the scanner and the corresponding sensor (Hall effect) we can measure the amplitude of the magnetic field generated by the magnet.
Total duration of the measurement: 3 mn

Measurement of the shielding efficiency associated with the lid of a switching power supply (15 kHz)

Objective : The objective of this study is to determine the attenuation value produced by the lid of a switching power supply. An antenna loop card tuned to the frequency of the power supply is used.

Result : Several measurements have been made to find the most effective shielding system.
Total duration of the measurement: 3 mn