1, scientific research: in scientific research, observers are used to collect experimental data, such as astronomical observers used to record the position and movement of celestial bodies, and meteorological observers used to monitor weather conditions.
2, industrial monitoring: in industrial production, the observer is used to monitor various parameters in the production process, such as temperature, pressure, flow, etc., to ensure the stability of the production process and product quality.
3, environmental monitoring: environmental observers are used to monitor air quality, water quality, soil conditions, etc., to help assess the health of the environment and take appropriate protective measures.
4, medical field: medical observers are used to monitor patients' physiological parameters, such as heart rate, blood pressure, blood glucose, etc., to help doctors diagnose the condition and formulate treatment plans.