METHOD AND SYSTEM FOR SIMULTANEOUSLY VERIFYING AMPLITUDE AND TEMPERATURE PARAMETERS OF ELECTROACOUSTIC CONVERSION APPARATUS

Title:

METHOD AND SYSTEM FOR SIMULTANEOUSLY VERIFYING AMPLITUDE AND TEMPERATURE PARAMETERS OF ELECTROACOUSTIC CONVERSION APPARATUS

Document Type and Number:

WIPO Patent Application WO/2016/192379

Kind Code:

A1

Abstract:

A method and system for simultaneously verifying amplitude and temperature parameters of an electroacoustic conversion apparatus, and a controller. The method comprises: S1. connecting a sweep signal to an electroacoustic conversion apparatus; S2. regulating gain of a full band of the sweep signal until the maximum value of the tested amplitude is a maximum amplitude parameter Xmax, and testing temperature of a voice coil at the moment; S3. if the temperature of the voice coil tested at the moment is greater/less than Tmax, gradually decreasing/increasing the gain of the sweep signal at a frequency band above a gain increasing frequency point until the tested temperature of the voice coil is Tmax, and then testing the performance of the electroacoustic conversion apparatus after running for a preset time by keeping the gain of the sweep signal unchanged, where the gain increasing frequency point > resonant frequency F0 of the electroacoustic conversion apparatus. Therefore, at the same time when the maximum amplitude of an electroacoustic conversion apparatus reaches Xmax, the temperature of a voice coil reaches Tmax, limit vibration states of the electroacoustic conversion apparatus are simulated more accurately, and an experimental result is more reliable.

More Like This:

WO/2006/063455	SYSTEM AND METHOD FOR DIAGNOSING MANUFACTURING DEFECTS IN A HEARING INSTRUMENT
JPS60219900	CHECKING SYSTEM OF BROADCASTING DEVICE

Inventors:

PING KANG (CN)
YANG XINFENG (CN)
WEI JIE (CN)

Application Number:

PCT/CN2015/097755

Publication Date:

December 08, 2016

Filing Date:

December 17, 2015

Export Citation:

Click for automatic bibliography generation Help

Assignee:

GOERTEK INC (CN)

International Classes:

H04R29/00

Foreign References:

CN105050019A	2015-11-11
CN102348147A	2012-02-08
CN103327437A	2013-09-25
US20130329898A1	2013-12-12
US20150146875A1	2015-05-28
CN103813236A	2014-05-21

Other References: