Measuring sensor, system and method and casting machine
OwnerSabrina Strolego, Stefano De Monte +1inventors
InventorsSabrina Strolego, Stefano De Monte, Stefano Spagnul
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Abstract
A system of detection of a temperature of a crystallizer or a level of liquid metal in the crystallizer has a sensor positioned within a mould of the crystallizer. The sensor has a case, a closing cover positioned at a detection face of the case, a plurality of ultrasonic elements arranged in vertically spaced relation to a length of the case, and a plurality of attenuation elements positioned sideways with respect to the closing cover. The plurality of ultrasonic elements include a first ultrasonic element, a second ultrasonic element and a third ultrasonic element positioned in orthogonal relation to the length of the sensor. The plurality of ultrasonic elements transmit and receive ultrasonic waves.
Claims9
A system for detection of at least one physical quantity, the at least one physical quantity being either a temperature of at least one portion of a crystallizer of a mould of a liquid metal casting machine or a position of a meniscus or level of liquid metal within the crystallizer, the system comprising:
- a sensor adapted to be installed within the mould, said sensor comprising:
- a case having a chamber therein;
- a closing cover positioned at a detection face of the chamber, said closing cover bearing internally of said case cover;
- a plurality of ultrasonic elements positioned in vertically spaced relation along a length of said sensor, the length of said sensor being parallel to a length dimension of walls of the crystallizer, said plurality of ultrasonic elements comprising:
- a first ultrasonic element;
- a second ultrasonic element;
- a third ultrasonic element, wherein each of said first ultrasonic element and said second ultrasonic element and said third ultrasonic element are positioned orthogonally to the length of said sensor such that said first ultrasonic element and said second ultrasonic element and said third ultrasonic element transmit ultrasonic waves orthogonally with respect to the crystallizer and receive ultrasonic waves returned from the crystallizer, the ultrasonic waves returned from the crystallizer being respective echoes of the transmitted ultrasonic waves of said first ultrasonic element and said second ultrasonic element and said third ultrasonic element;
- and
- a plurality of attenuation elements positioned sideways with respect to said closing cover in relation to each of said first ultrasonic element and said second ultrasonic element and said third ultrasonic element so as to attenuate the respective echoes from a non-orthogonal direction, said plurality of attenuation elements being longitudinal elements positioned orthogonally with respect to the length of said sensor, wherein said plurality of attenuation elements have sawtooth ridges and recesses adapted to increase absorption and attenuation.
Dependencies are inferred from the claim text.