Lens loosening test system and lens loosening test method

A lens loosening test system configured to detect whether a lens to be tested is loose or not, comprising a processing module, an acquisition module connected to the processing module, a speaker and a microphone connected to the acquisition module, and a fixing module installed on the speaker;

• wherein the fixing module is configured to place and fix the lens to be tested;
• the processing module is configured to send an excitation signal to the acquisition module;
• the acquisition module is configured to excite the speaker based on the excitation signal;
• the speaker is configured to generate vibration to drive the lens to be tested fixed on the fixing module to vibrate and generate an audio signal;
• the microphone is configured to receive the audio signal and transmit the audio signal to the acquisition module;
• the acquisition module is further configured to output the audio signal to the processing module;
• and
• the processing module is further configured to determine whether the lens to be tested is loose or not based on the audio signal;
• wherein the fixing module comprises a base fixed on a vibration plate of the speaker and a fixing member arranged on the base, and the fixing member is configured to fix the lens to be tested;
• and
• a side of the base away from the speaker has a mounting surface that is partially recessed to inwardly form a groove for accommodating the lens to be tested, each of side walls of the groove is defined with a plurality of through holes, the fixing member is a fixing screw, and the fixing screw is threaded with each of the plurality of through holes:
• a side of the base facing the speaker has a bottom surface that is secured to the speaker, and the mounting surface is angled relative to the bottom surface so that the lens to be tested is installed at a tilt within the groove.