Advantech PCI-1241 Especificações descarregar pdf (Página 31)

The steps are repeated two more times to test 1.8

GHz GSM and GPRS signals.

Software takes care of switching from one test

mode to the next, so the operator simply places

mobile phones into the fixture, and listens to audio

signals to see if the phone passes the test. After the

three modes have been tested, the test results are

automatically stored in a database together with the

product’s serial number. The operator removes the

phones from the fixtures, and replaces them with

four new phones.

Before this system was implemented, the operator

would have to manually adjust the instrument to

the wanted frequency range. Then dial out using

the keypad of the mobile phone, and check if the

frequency was correct by reading the frequency

displayed on the instrument. The test data was then

entered into a database by hand. Obviously, there

was room for many human errors as one minute

was not much time to complete all the required

steps.

Although this solution is specific for mobile phones,

similar solutions can be used for testing PDAs,

CD-ROMs and other electronics. Together with

Advantech engineers, you can develop a customized

solution that removes the bottlenecks in your quality

test system.

Project Implementation

•

Agilent

8960 Test instrument with 2 frequency input channels

Conclusion

•

Increased output of approximately 1,200%

•

Fewer human errors with automated quality control

•

More efficient usage of equipment with one operator using four test stations and two instruments.

•

Scalability. The system diagram shows a system where the Agilent instruments are the bottleneck

as they only have two input channels. The cards currently in this system together with eight

instruments with two channels each would have a capacity of 16 phones

•

Adaptable; minor modifications can make the system capable of running many similar tests

•

Open standard; a variety of suppliers for all components in the solution

PCI-1762

Relay Actuator and Isolated D/I Card

PCI-1723

Non-isolated Analog Output Card

PCI-1670

GPIB Interface PCI-bus Card

Agilent 8960

Verify GSM, GPRS signal

Agilent 8960

Verify GSM, GPRS signal

Frequency

signal

GPIB

Relay

Output

Analog

Output

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