CN0549 Condition-Based Monitoring Development Platform

ADI's CN0549 circuit note is a rapid integrated electronic piezoelectric (IEPE)-compliant, condition-based monitoring (CbM) machine learning enablement development platform implemented via a combination of off-the-shelf boards and software.

Machine CbM utilizing vibration sensing is growing in importance in industrial applications. Some companies seek to optimize machinery lifetime and performance and reduce the cost of ownership, while others are looking to develop new business models around the provision of such information. To provide an accurate representation of machinery that needs monitoring, large datasets must be collected to determine a baseline operating point for the equipment in both normal operating modes and failure conditions. Once this data is collected, an algorithm or threshold detection routine can be created to provide the correct analysis for this equipment.

CbM requires capturing full bandwidth data to ensure that all harmonics, aliasing, and other mechanical interactions in both the time and frequency domain are accounted for. This data collection requires a high-performance sensor and a data acquisition (DAQ) system that can provide high fidelity, real-time data into a data analysis tool or application.

Using established tools like MATLAB® or newer Python-based tools like TensorFlow, analyzing the data, profiling the machinery, and creating algorithms for smart decision making is greatly simplified.

Vibration sensing has traditionally dominated most CbM applications because of the availability of sensors and the science behind the analysis is better understood. The IEPE standard is a popular signaling interface standard for high-end microelectronic mechanical systems (MEMS) and piezo sensors prevalent in the industry today.

Items required for a complete CN0549 reference design:

• EVAL-CN0532-EBZ
• EVAL-CN0540-ARDZ
• EVAL-XLMOUNT1
• Intel Cyclone V or Xilinx Cora Z7-07s FPGA Development Board
• 16 GB microSD^TM card with Kuiper Linux Image installed

Features

• Wide bandwidth MEMs accelerometer sensor data is output in the popular IEPE format
• Easy mounting to machines (like pumps, fans, and motors) while maintaining sensor signal integrity
• The DAQ solution provides high fidelity, IEPE analog input bandwidth from DC to 54 kHz
• Embedded FPGA software captures and stores the raw data for local embedded or networked processing
• IIO oscilloscope application allows users to visualize the data for evaluation purposes quickly

Applications

• Industrial automation