Patent ID: 11956029
Assignee: NOK9 AB
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 18:
19. The method as defined in claim 18, further involving testing or tuning the performance of the wireless power transmitter device when determining a (reference) quality factor of a wireless power transmitter coil thereof under the influence of a wireless power receiver coil of a wireless power receiver, the (reference) quality factor being defined as a ratio between reactance and resistance of the wireless power transmitter coil, by:
causing said manipulation of the electromagnetic signals exchanged between the wireless power transmitter and receiver devices by controlling a controllable load of the pickup coil of the probe device to vary between a first load and a second load, said second load being lower than said first load, thereby causing a controlled change in the (reference) quality factor observed by the wireless power transmitter device between a first (reference) quality factor and a second (reference) quality factor, said second (reference) quality factor being lower than said first (reference) quality factor.