DEVICE AND METHOD FOR MONITORING AN OBJECT IN AN EXPLOSION-PROTECTED ZONE BY MEANS OF ULTRASOUND

摘要

The present invention relates to a device and related method that includes an ultrasonic transducer, an acoustic waveguide acoustically coupled to the ultrasonic transducer and transmitting and receiving electronics for transmitting and receiving ultrasound waves via the ultrasonic transducer in an explosion-protected housing. The transmitting and receiving electronics has an energy storage connected to an amplifier circuit, wherein control signals for the ultrasonic transducer transmitted from outside can be amplified to such an extent that ultrasonic signals significantly strong for monitoring can be generated. By means of the acoustic waveguide, the ultrasonic signals are guided outside through an explosion-protected passthrough in the housing and are coupled into the object. As a result, objects can be continuously monitored in explosion-protected zones without violating the safety regulations and without a stoppage of the associated system or draining of the objects.

主权项

1. A device for monitoring an object in an explosion-protected zone by means of ultrasound, which comprises at least
an ultrasonic transducer, an acoustic waveguide acoustically coupled with the ultrasonic transducer (5) and a transmitting and receiving electronics for sending and receiving ultrasonic signals via the ultrasonic transducer in an explosion-protected housing, wherein the transmitting and receiving electronics has an energy storage and an amplifier circuit, connected to the energy storage, for incoming control signals for the ultrasonic transducer (5), and the acoustic waveguide protrudes through an explosion-protected passthrough in the housing to the outside so that it can be acoustically coupled to the object.