Sound Audio Test Lab Engineer Emc emi FCC Third-party authentication service

Provide various AV/IT products testing and certification

With the advent of the Internet era, IT/AV multimedia has become an indispensable part of people's life, and its security, electromagnetic compatibility and reliability issues have become the focus of manufacturers and consumers.

Product range:

Radio, television, combination stereo, active speaker, tuner, Karaoke, sound mixer, video recorder, language repeater, television, monitor, Projector, TV antenna amplifier, video modulator, frequency converter, audio and modem, satellite television broadcasting receivers, set-top boxes, digital TV receiver, electronic organ, central processing unit (CPU), printers, monitors, scanners, picture-tel, fax, telephone switches, transponder, radio and television transmission receiving equipment, pagers, separation device, rotary steam Type DRYER, ENGRAVING machine, LASER cutting machine, SAwing machine and SLicing machine, CENTRIFUge, injection machine, oven and heating furnace, ion implantation machine, microscope, measuring and testing instruments, color separators, spectrometers, optical ray equipment, word processors, etc.

Combination acoustics can be divided into mini combination acoustics and home cinema set commonly. Mini combination acoustics, it is miniaturized combination acoustics actually, opposite to home cinema set, the characteristic of mini combination acoustics is miniaturized, common mini combination acoustics by all sorts of play equipment and the host machine that result put is integrated add two sound boxes to constitute. The composition of mini sound is also divided into different forms, some mini sound and even speakers are connected together with the host can not be split, the main purpose of this is to carry and move easily, occupy small space, so this mini combination of sound is also called bed sound; Some also come with multiple speakers, which is intended to accentuate the ambient effect of the sound. Such speakers may also use wireless technology to connect the host to each speaker for ease of placement.

Testing standard

Electromagnetic Compatibility Test Project (EMC)

1. Conduction interference voltage
2. Radiation field intensity
3. Interference power
4. The antenna terminal interferes with the phone
5. Harmonic current
6. Fluctuating voltage
7. Rf interference voltage
8. Low frequency magnetic field
9. High frequency magnetic field
10. Continuous interruptions
11. Electrostatic
12. Transient pulse
13. Radio frequency continuous wave
14. Continuous wave conduction interference
15. Power frequency magnetic field
16. The pulse
17. Supply voltage transient

Routine test items

1, safety project:

Input current test, label to wipe test, energy level test, SELV test, current limiting circuit testing (LCC), limited power test (LPS), grounding continuity test, temperature and humidity (tide) test, drop, impact and other mechanical stress tests, the ball pressure test and normal temperature test, contact voltage, electric current test, insulation test voltage, abnormal test, yuan A fault testing, etc.

2, the EMC test project:

Conduction, radiation, harmonic, voltage fluctuation and flicker, electrostatic, RS, EFT, surge, CS, power frequency magnetic field, such as voltage sag.

Environmental reliability Testing

High and low temperature resistance test, heat and humidity resistance, high and low temperature impact, high and low temperature alternating, mechanical vibration, mechanical impact, low pressure (vacuum) test, IP grade, dustproof water release test, gas corrosion (single/multiple), salt spray corrosion test (neutral, acid, compound), etc.

Class specific tests

Battery charging and discharging test, impact test, impact test, drop test, ROhs testing, REACH, halogen detection, temperature and humidity environment test, failure analysis, components selection, pressure test, light aging test, sand and dust test, get wet in the rain test, vibration test, high speed test, mechanical shock test, biological environment test, salt spray test and reliable integrated environment Sex test, simulated packaging and transportation test, gas corrosion test, slice test, etc.

Energy efficiency test

Energy saving testing, energy efficiency testing

Electrical performance testing

Operating voltage, operating current, speed range, power, conductivity, dielectric constant, dielectric loss, field strength (breakdown voltage), etc

2. Certification services

The test report issued by Global Zhongyi has legal effect and can be used in scenarios such as the entry of supermarkets, product appeals, anti-malicious rights protection, and auctions (appeals and auctions must meet Party A's testing requirements).