RBI HYDRAULIC BREAKER USER MANUAL. 2. How the Tool Breaks Rock. The following paragraphs describe what happens to break rock when the piston strikes the tool. (A)Contact-Initial Compression Stress Wave. When the piston (1) strikes the top of the tool (2), it sends a compressive stress wave (3) down to the.
And Counter means counter, exactly as in English. Poise means weight. So the word literally means counterweight and that is what a counterpoise is in an antenna system, where it was originally used. Simply put, a ground plane that the antenna system could mirror itself in.
The array uses electromagnetic wave interference to enhance the radiative signal in one desired direction at the expense of other directions. It may also be used to null the radiation pattern in one particular direction, especially for a receiving antenna in the face of a particular interfering source.