Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
116 words
Arrangement for determining the roll angle position of a rotating projectile, shell, missile or the like with the aid of polarised electromagnetic radiation, comprising a transmitter arranged to emit a position-determining polarised radiation in the direction towards the projectile and a receiver arranged in the projectile in order to receive the transmitted radiation, characterised in that the emitted polarised radiation consists of two components, on the one hand a first radiation component (12) of a longer wavelength and on the other hand a second radiation component of a shorter wavelength, this second radiation component comprising a pulse train (13) in which the pulses indicate that the first radiation component is situated in a certain phase position.
Claim 2
Dependent Claim
20 words
Arrangement according to Patent Claim 1, characterised in that the first radiation component consists of a sinusoidal long-wave component (12).
Claim 3
Dependent Claim
19 words
Arrangement according to Patent Claim 2, characterised in that the second radiation component consists of a microwave component (13).
Claim 4
Dependent Claim
33 words
Arrangement according to Patent Claim 3, characterised in that the pulses in the microwave component (13) indicate the sinusoidal long-wave component's zero cross-overs with a positive-going derivative, or alternatively with a negative-going derivative.
Claim 5
Dependent Claim
89 words
Arrangement according to Patent Claim 1, characterised in that the transmitter comprises a first generator (17) and antenna (3) for transmitting the first radiation component, a second generator (18) and antenna (4) for transmitting the second radiation component, and an arrangement (21) for detecting when the first radiation component is situated in a certain position, and which emits a signal to the second generator (18) when the first radiation component is situated in the predetermined position, the generator (18) emitting a pulse in order to indicate the said position.
Claim 6
Dependent Claim
46 words
Arrangement according to Patent Claim 5, characterised in that the first generator consists of a long-wave transmitter (17) and the second generator consists of a microwave transmitter (18), and the detector arrangement (21) detects the long-wave component's zero cross-overs with a positive-going or alternatively negative-going derivative.
Claim 7
Dependent Claim
47 words
Arrangement according to Patent Claim 5, characterised in that the receiver in the projectile comprises a receiver part (7, 8) for receiving the first radiation component, a receiver part (9, 10) for receiving the second radiation component, and a microprocessor (11) for evaluating the first radiation component.
Claim 8
Dependent Claim
38 words
Arrangement according to Patent Claim 7, characterised in that the receiver part (7, 8) for receiving the first radiation component comprises an antenna (8) which is aligned with the aid of a reference point (14) in the projectile.