Ultrasonic-detector i.e. ultrasonic unidirectional microphone, for detecting e.g. particle discharges, at high voltage facility i.e. pylon, has receiver provided in focal point of parabolic reflector formed as offset- parabolic reflector

The detector (1) has an ultrasonic receiver (10) provided in a focal point (9) of a parabolic reflector that is formed as an offset- parabolic reflector. The geometry of the offset- parabolic reflector is shadow-freely aligned to a receiving area of the receiver, where the area lies approximately in...

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Bibliographische Detailangaben
Hauptverfasser:	BADER, NICKI, MUENCH, HANS-JOACHIM, SANTER ZUR HORST-MEYER
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DEAF-AID SETS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MEASURING PHYSICS PUBLIC ADDRESS SYSTEMS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	The detector (1) has an ultrasonic receiver (10) provided in a focal point (9) of a parabolic reflector that is formed as an offset- parabolic reflector. The geometry of the offset- parabolic reflector is shadow-freely aligned to a receiving area of the receiver, where the area lies approximately in 60 degrees. The offset- parabolic reflector is formed as an offset- parabolic antenna (8). An evaluation unit is provided with power supply devices, where the antenna, the receiver and target determining devices are arranged at a handhold (6) by a support (7).