GB/T 35030-2018 in English

3.1 Optimization of measurement environment

Ensure that the test site is open and flat, and the external safety distance meets the requirements of GB50161, and select windless or light wind weather (wind speed ≤5m/s) for measurement.

3.2 Instrument calibration

Regularly calibrate equipment such as benchmarks, observation screens and portable altimeters to ensure that the measurement accuracy meets the standard requirements. For example, the pixels of a double-sided CCD camera must be greater than 10 million, and the frame rate must be greater than 50 frames/s.

3.3 Method selection recommendations

Select an appropriate measurement method based on actual needs:

• The benchmark reference measurement method is suitable for preliminary screening and low-altitude launch product testing;
• The observation screen method is suitable for medium and high altitude measurements;
• The portable altimeter method is suitable for rapid on-site evaluation;
• The fireworks and firecrackers safety performance detection system method is suitable for complex scenes with high precision requirements.