OP3.4 Microwave Interferometer
Same as Michelson interferometer, but here we use microwaves (3cm) instead of a laser. The microwave apparatus that has a stationary and spinning arm is employed. The items in C23 will help--one of the gratings acts like a silvered mirror, while the sheet metal acts like a full mirror. Peaks in intensity can be noticed by moving the sheet metal mirror--the one that lies along the original path.
Equipment Location: C11, C13, above E