1. Digital Control Board (ADuCM362 Microcontroller)

• Microcontroller (ADuCM362): The ADuCM362 is a precision analog microcontroller from Analog Devices with integrated ADC and DAC capabilities. It processes the altitude data collected by the differential pressure sensor and barometer. The microcontroller generates a corresponding sinewave signal, ranging from 0 to 10 volts, based on the altitude reading.
• Differential Pressure Sensor (SCP1000): The SCP1000 sensor measures both pressure and altitude. This sensor provides real-time altitude data by comparing internal and external pressure, offering high precision and accuracy required for aircraft applications.
• Barometer Integration:A high-precision barometer works alongside the SCP1000 to further refine the altitude measurement, ensuring accurate readings even under changing atmospheric conditions.

2. Communication and Output Board (Optocoupler-based Long-Range Transmission)

• Sinewave Generation (0-10 Volts): The output from the digital board is a 0 to 10 volts sinewave, generated by the ADuCM362 based on the real-time altimeter data. The sinewave is used to represent altitude variations in an analog format.
• Long-Range Transmission Using Optocoupler: To ensure efficient and noise-resistant transmission of the sinewave signal over long distances (up to 5 meters), an optocoupler is used. The optocoupler isolates the digital and analog sections, ensuring signal integrity over long distances.
• 24-Volt Output Communication: The communication board interfaces with external systems through a 24-volt output, allowing robust long-range communication for altitude data, suitable for aircraft systems.

1. Two-Board Architecture

• The Digital Control Board handles altitude measurement using the SCP1000 sensor and barometer, as well as sinewave generation based on the altitude data. This board is centered around the ADuCM362 microcontroller, which is responsible for processing and generating the signal.
• The Communication Board focuses on long-range signal transmission using an optocoupler for isolation and ensures the sinewave signal is transmitted over long distances (5 meters) via a 24-volt output.

2. Sensor and Signal Processing

• The SCP1000 differential pressure sensor continuously measures the aircraft’s altitude by comparing the atmospheric pressure to a reference pressure.
• The ADuCM362 microcontroller processes this altitude data and converts it into an analog 0 to 10 volts sinewave signal, corresponding to the altitude reading. This signal is prepared for long-range transmission using an optocoupler for safety and noise reduction.

3. Long-Range Communication

• The optocoupler in the communication board provides electrical isolation between the digital control circuit and the output communication channel. This ensures accurate transmission of the sinewave over long distances, making the system reliable for aircraft operations.

• SCP1000 Differential Pressure Sensor: This sensor provides high-accuracy pressure and altitude measurements, enabling precise altitude detection even in dynamic atmospheric conditions.
• ADuCM362 Microcontroller:This Analog Devices microcontroller offers integrated high-precision analog-to-digital conversion and sine wave generation, processing real-time altitude data and creating a 0-10V sine wave output.
• Optocoupler:Used for signal isolation and long-range transmission, ensuring that the sinewave representing altitude data is transmitted over distances up to 5 meters without interference or noise.

2. Sensor and Signal Processing

• The SCP1000 differential pressure sensor continuously measures the aircraft’s altitude by comparing the atmospheric pressure to a reference pressure.
• The ADuCM362 microcontroller processes this altitude data and converts it into an analog 0 to 10 volts sinewave signal, corresponding to the altitude reading. This signal is prepared for long-range transmission using an optocoupler for safety and noise reduction.

3. Long-Range Communication

• The optocoupler in the communication board provides electrical isolation between the digital control circuit and the output communication channel. This ensures accurate transmission of the sinewave over long distances, making the system reliable for aircraft operations.