High precision corrosion monitoring sensor assembly and system
First Claim
1. A high-precision corrosion monitoring sensor assembly to be permanently mounted on an outer pipe wall of a pipe for measuring remaining wall thickness of the pipe, the pipe having any diameter within a preselected range of diameters, the high-precision corrosion monitoring sensor assembly comprising:
- an ultrasonic transducer for measuring remaining wall thickness of a pipe, a first base of the ultrasonic transducer being positioned to bond to an outer pipe wall of the pipe at a first mounting location when the first base is positioned substantially tangential to the outer pipe wall at the first mounting location; and
an adjustable transducer hold down fixture being for housing the ultrasonic transducer and for bonding the ultrasonic transducer to the outer pipe wall at a second mounting location and at a third mounting location, the adjustable transducer hold down fixture including;
a cross-member attached to the ultrasonic transducer, a first distal end of the cross-member having a first pivot pin attached thereto, a second distal end of the cross-member having a second pivot pin attached thereto, a first axis of rotation about the first pivot pin being substantially parallel to a second axis of rotation about the second pivot pin,a first tower for supporting the adjustable transducer hold down fixture, a second base of the first tower being magnetic and positioned to bond to the outer pipe wall at the second mounting location when the second base is positioned substantially tangential to the outer pipe wall at the second mounting location, the first tower having a first track to receive the first pivot pin at a variable position within the first track,a second tower for supporting the adjustable transducer hold down fixture, a third base of the second tower being magnetic and positioned to bond to the outer pipe wall at the third mounting location when the third base is positioned substantially tangential to the outer pipe wall at the third mounting location, the second tower having a second track to receive the second pivot pin at a variable position within the first track, andtwo or more fasteners for collectively making rigid the adjustable transducer hold down fixture by restricting adjustment of the first tower about the first pivot pin in the first track and by restricting adjustment of the second tower about the second pivot pin in the second track.
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Accused Products
Abstract
A high-precision corrosion monitoring sensor assembly is provided for permanent mounting on a vessel to measure wall thickness of the vessel. The assembly includes an ultrasonic transducer and a delay line, which are bonded to the vessel wall a first location. The assembly is further bonded to the vessel by an adjustable fixture. The assembly includes a cross-member attached to the ultrasonic transducer, having a pivot pin at each distal end. The pivot pins are attached to a first tower and a second tower, which bond to the outer vessel wall at a second location and a third location. The position of the first and second towers can be adjusted with respect to angle and placement about the pivot pins. Fasteners are attached to the pivot pins and can be tightened to make rigid the fixture, thereby allowing configuration of the assembly for use on flat surfaces and small-diameter pipes.
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Citations
22 Claims
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1. A high-precision corrosion monitoring sensor assembly to be permanently mounted on an outer pipe wall of a pipe for measuring remaining wall thickness of the pipe, the pipe having any diameter within a preselected range of diameters, the high-precision corrosion monitoring sensor assembly comprising:
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an ultrasonic transducer for measuring remaining wall thickness of a pipe, a first base of the ultrasonic transducer being positioned to bond to an outer pipe wall of the pipe at a first mounting location when the first base is positioned substantially tangential to the outer pipe wall at the first mounting location; and an adjustable transducer hold down fixture being for housing the ultrasonic transducer and for bonding the ultrasonic transducer to the outer pipe wall at a second mounting location and at a third mounting location, the adjustable transducer hold down fixture including; a cross-member attached to the ultrasonic transducer, a first distal end of the cross-member having a first pivot pin attached thereto, a second distal end of the cross-member having a second pivot pin attached thereto, a first axis of rotation about the first pivot pin being substantially parallel to a second axis of rotation about the second pivot pin, a first tower for supporting the adjustable transducer hold down fixture, a second base of the first tower being magnetic and positioned to bond to the outer pipe wall at the second mounting location when the second base is positioned substantially tangential to the outer pipe wall at the second mounting location, the first tower having a first track to receive the first pivot pin at a variable position within the first track, a second tower for supporting the adjustable transducer hold down fixture, a third base of the second tower being magnetic and positioned to bond to the outer pipe wall at the third mounting location when the third base is positioned substantially tangential to the outer pipe wall at the third mounting location, the second tower having a second track to receive the second pivot pin at a variable position within the first track, and two or more fasteners for collectively making rigid the adjustable transducer hold down fixture by restricting adjustment of the first tower about the first pivot pin in the first track and by restricting adjustment of the second tower about the second pivot pin in the second track. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification