Electroacoustic Conversion Device Amplitude and Temperature Verification

The patent applies local quality by adjusting the gain of specific frequency bands rather than uniformly adjusting the entire frequency spectrum. The verification system divides the frequency spectrum into multiple bands and independently adjusts the gain for each band, allowing precise control of amplitude at the resonance frequency while limiting temperature rise in non-critical frequency regions. This localized approach enables accurate Xmax verification without causing excessive voice coil temperature increase.

The patent implements dynamics by making the verification process adaptive and iterative. The system continuously monitors both amplitude and temperature parameters during verification, dynamically adjusting the test signal characteristics based on real-time feedback. If temperature approaches critical levels, the system automatically reduces power or pauses testing, allowing the voice coil to cool down while maintaining verification accuracy through multiple measurement cycles.

The patent applies local quality by targeting specific frequency bands for temperature verification rather than uniformly exciting the entire frequency spectrum. The system identifies the resonance frequency and focuses test energy primarily on this critical frequency where temperature generation is most efficient. By concentrating verification efforts on the resonance peak and using selective frequency band excitation, the system achieves accurate Tmax measurement while minimizing unnecessary amplitude stress across the entire voice coil.

The patent implements partial action by performing temperature verification at selected frequency points rather than continuously across the entire frequency range. The system identifies critical frequency bands and performs targeted temperature testing at these specific points, avoiding excessive amplitude application across the full spectrum. This partial verification approach achieves sufficient temperature characterization without subjecting the voice coil to unnecessary stress that could cause short-circuiting.

The patent merges the previously separate amplitude and temperature verification processes into a unified integrated verification system. The system simultaneously measures both amplitude and temperature parameters during the same test sequence, using a single verification workflow to obtain both Xmax and Tmax values. This combined approach maintains operational simplicity while dramatically improving reliability, as both parameters are measured under identical test conditions and the same set of verification data can be used to determine whether failures are caused by excessive amplitude or temperature.

The patent implements multi-functionality by designing a verification system that performs multiple verification functions through a single unified process. The system can verify both maximum amplitude parameter Xmax and highest temperature parameter Tmax, as well as identify failure causes, all within one verification sequence. The integrated system uses a single test signal generation and control mechanism to achieve multiple verification objectives, eliminating the need for separate dedicated verification processes while enhancing overall verification capability and reliability.