The paper presents a practically realized system of electronic programmable detonator designed for tandem systems. The presented layout was implemented on the basis of micro-controllers using RISC architecture. The detonator is equipped with a fast precursor excitation system and can be programmed for the required delay time of the detonation of the main charge in the range from a few to several hundred μs. The paper presents the results of laboratory preliminary tests of the implemented system. Thanks to the possibility of delay time programming, the system has a wide range of practical applications also during shooting tests.
The paper presents the concept of using devices creating active interference characterized by a relatively low cost of implementation and that can provide, despite the low output power, an effect comparable to that obtained using expensive high power devices. Due to the fact that modern radars have many mechanisms that increase their tolerance to interference, including active ones, in this paper was proposed use for this purpose synchronized sources of interference, generating signals in specific frequency bands, corresponding to the frequency of the device being interrupted. Taking into account the above and remembering the limitations of currently known and used solutions (e.g. noise sources or digitally controlled), the article focuses on the concept of creating dedicated spatial interference using miniature microwave oscillators, synchronized by received signal from the device being interrupted.