首页>
外国专利>
a device for detektoruntersuchung ultraschallgasleckdetektor
a device for detektoruntersuchung ultraschallgasleckdetektor
展开▼
机译:超声波气体泄漏检测仪检测仪
展开▼
页面导航
摘要
著录项
相似文献
摘要
The invention relates to an ultrasonic gas leak detector of the kind where a detector transducer (2) senses airborne acoustic ultrasonic sound waves (S1) emitted from a leakage in a gas installation. The detector is provided with self-test means according to which an ultrasonic signal (S2) is emitted by a test transducer (11) provided as an integral part of the detector, this signal being received by the detector transducer (S1). By these means an ongoing self-test of the performance of the essential components of the detector, e.g. the detector transducer itself, the various electronic circuits of the detector etc. can be carried out and an alert signal can for instance be transmitted to a central alarm system, if inappropriate performance of the detector is discovered. The detector according to the invention can be specially designed for fixed installation in an explosion-endangered environment. IMAGE
展开▼