Advantages of flying probe test:

1. Flexibility: flying probe test is suitable for small batch and sample board testing,wafer tester do not need to make a special test fixture, can be directly installed PCB board for testing.

2. Cost savings: Since there is no need to make test fixtures, flying probe test can save the time and cost of making test racks.

3. Improve shipping efficiency: Flying probe test can improve the efficiency of shipping, because it can be tested quickly.

4. Wide applicability: Flying probe testing is suitable for all types of PCB boards, including high-density,wafer probe testing fine-pitch and multi-layer boards.

Advantages of test racks:

1. High test efficiency: test racks are specialized fixtures for through-testing of mass-produced PCB boards, so they have high test efficiency.

2. No charge for reordering: There is usually no extra charge for reordering on test racks.

3. Suitable for mass production: test racks are suitable for medium to high volume production of PCB boards, because of its faster measurement speed and relatively high equipment prices.

4. Economy of scale: for mass production of PCB boards, the use of general-purpose or specialized testers can achieve economies of scale and reduce test costs.

In summary, flying probe test is suitable for small quantities and prototype testing, with flexibility and cost-saving advantages;vibration isolation table while the test frame is suitable for medium to large production of PCB boards, with high test efficiency and economies of scale. Which method to choose depends on specific production requirements and budget constraints.