Constant temperature crystal oscillator automatic current test and analysis system and method

Abstract

The present invention relates to an automatic current test and analysis system for a constant temperature crystal oscillator. The system includes: 1) a multi-channel oscillator test board, 2) a program-controlled ammeter, 3) a multi-channel switching device, and 4) a computer control system; the method steps: 1) Set the test standard for this current test analysis; 2) Add a crystal oscillator to a multi-channel oscillator test board; 3) Check whether there is an abnormal crystal oscillator current, 4) Start the formal test; 5) Test the crystal oscillator 6) After testing the first crystal oscillator, make the first crystal oscillator enter the power-on stable state, and at the same time switch the ammeter to test the second crystal oscillator, repeat step 5) until the final test Start-up current of one crystal oscillator; 7) Measure the steady current of all crystal oscillators. Compared with the prior art, the present invention has the following beneficial effects: reducing manpower use during testing and reducing data human errors. Improve the current test efficiency of OCXO, use only one current test instrument, achieve the speed of multiple test instruments, and reduce equipment investment.

Description

technical field [0001] The invention relates to a system and method for testing and analyzing the current characteristics of an OCXO during the production and testing process of a constant temperature crystal oscillator (hereinafter referred to as OCXO). Background technique [0002] In OCXO production, more than 80% of the time is spent testing the product. Among the product test performance indicators, an important technical indicator is the current value of the test OCXO, which is divided into two values, one is the maximum current when the product starts, and the other is the stable current when the product reaches stability. [0003] In traditional production, the current index is generally completed manually. The test process is that the product is connected to the ammeter, and the current change is manually checked to find the maximum value of the current. Then, wait for the product to work in a stable state and read the stable current value. Due to the rapid change ...

AI Technical Summary

Problems solved by technology

For the recorded data, it is manually recorded, the data volume is large, and it is difficult to manage the data later

At the same time, for these data, only the starting and stable current can be seen, but the real current change of the product cannot be reproduced

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