Patent ID: 9038440
Filing Date: 2015-05-26
Classification: G01M

Abstract:
1. A method for measuring speaker enclosure leakage, the method comprising: positioning a speaker opening of a speaker enclosure against a mating plate; assembling a mass flow sensor and air flow regulator serially in fluid communication between the mating plate and an air flow source; applying a regulated air flow by the air flow source through the mass flow sensor and the air flow regulator to the speaker enclosure under test; regulating the air flow to obtain a test pressure level in the speaker enclosure; measuring the pressure level in the speaker enclosure to obtain a measured pressure level; waiting for the measured pressure level to reach the test pressure level; measuring the mass air flow between the speaker enclosure and the air flow source by the mass flow sensor while maintaining the test pressure level; comparing the mass air flow to a threshold; and if the mass air flow does not exceed a threshold, declaring the speaker enclosure to be leak free.