摘要 |
The invention relates to a reduction in the measurement construction by reducing the distance (zx) between the receiving (3, 4) and transmitting coupler (2) to preferably 0 mm. However, the implementation of this concept is complicated by the fact that, below a certain distance (z?) between the couplers (2, 3, 4), it is no longer possible to determine individual terms, but only so-called sum fields. This requires a splitting of said sum fields in order to determine the muzzle velocity (v0) therefrom. |