On-site Test Capability for the Large Binocular Telescope Observatory

Project Goal: Create a small, portable microcontroller-based device for on-site testing of the Large Binocular Telescope.

A problem with the actuator in the Large Binocular Telescope Observatory has resulted in replacement of the entire assembly. This tool will enable workers to isolate actuator problems and target parts for replacement.

The test mechanism, fabricated with a portable, durable and reliable casing, focuses exclusively on the actuator board electronics. Novel hardware and software integrates with existing hardware and software on the M1 boards. The actuator boards’ Price Intelligent Controllers issue force commands that are read as a digital signal and sent with feedback to the actuator boards as an analog signal. A USB exchanges data with a command-and-control host computer, creating a simple communication procedure and allowing for controlled manipulation of test procedures to clearly define faulty controller routines.

With this tool, operating staff can determine the root cause of the problem, and the observatory has the option of replacing a problematic actuator board rather than the entire actuator assembly.