Abstract: The present invention relates to an automatic rechargeable trap comprising a spring driven and/or gas pressure driven killing means; and species monitoring means configured for determining the species by monitoring the degree of advancement of the killing means during an individual triggering.

Abstract: The present invention relates to a system for detecting and predicting rats and mice infestations. The system comprises a plurality of rechargeable traps, and a receiver unit configured for receiving a monitoring data signal from the rechargeable traps. The receiver unit comprises a processor and is operatively connected to a database. The database is adapted to store multiple database entries representing a value of a parameter related to rats and mice infestations at various points in time. The processor is programmed to perform a univariate and/or multivariate analysis of the database entries to detect and predict rats and mice infestations in a predefined geographical area.

Abstract: A magnetic circuit includes an inner permanent magnet assembly and an outer permanent magnet assembly, a magnetically permeable yoke, and first and second air gap portions conducting first and second magnetic flux densities, respectively, the first and second air gap portions being adapted to receive first and second voice coil segments, respectively. The magnetic flux density in the first air gap portion is generated by superposition of magnetic flux generated by the inner permanent magnet assembly and magnetic flux generated by the outer permanent magnet assembly, and wherein the magnetic flux density in the second air gap portion is generated substantially exclusively by the inner permanent magnet assembly.

Abstract: A magnetic circuit includes an inner permanent magnet assembly and an outer permanent magnet assembly, a magnetically permeable yoke, and first and second air gap portions conducting first and second magnetic flux densities, respectively, the first and second air gap portions being adapted to receive first and second voice coil segments, respectively. The magnetic flux density in the first air gap portion is generated by superposition of magnetic flux generated by the inner permanent magnet assembly and magnetic flux generated by the outer permanent magnet assembly, and wherein the magnetic flux density in the second air gap portion is generated substantially exclusively by the inner permanent magnet assembly.

Abstract: The present invention relates to a miniature electro-acoustic transducer including a magnetic circuit, a diaphragm and a voice coil operatively connected to the diaphragm. The magnetic circuit includes first and second air gap portions adapted to receive first and second voice coil segments, respectively. The magnetic flux acting on the first voice coil segment is provided by inner magnetic means and first outer magnetic means in combination and the magnetic flux acting on the second voice coil segment is essentially provided by the inner magnetic means only.