To realize an easy maintenance of the load sensor. The measurement gantry and beam guidance gantry are thus of a mutually independent design and are, in particular, arranged in a mutually concentric manner. Alphanumeric characters present simultaneous direct relationships between the individual alphanumeric elements and their tactile corollaries within a single form. An alignment member protrudes from an interior surface of the blade body adjacent its first end portion. The method further includes coupling the pump radiation to the fiber amplifier and amplifying the input signal to generate an output signal.