Underwater manipulator

Patent · Tue Apr 20 04:00:00 EDT 1993

OSTI ID:6040324

Schrum, P B; Cohen, G H

Self-contained, waterproof, water-submersible, remote-controlled apparatus is described for manipulating a device, such as an ultrasonic transducer for measuring crack propagation on an underwater specimen undergoing shock testing. The subject manipulator includes metal bellows for transmittal of angular motions without the use of rotating shaft seals or O-rings. Inside the manipulator, a first stepper motor controls angular movement. In the preferred embodiment, the bellows permit the first stepper motor to move an ultrasonic transducer [plus minus]45 degrees in a first plane and a second bellows permit a second stepper motor to move the transducer [plus minus]10 degrees in a second plane orthogonal to the first. In addition, an XY motor-driven table provides XY motion.

• DOE Contract Number: AC11-76PN00014
• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): A; US 5203645
• Application Number: PPN: US 7-819244
• OSTI ID: 6040324
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420203* -- Engineering-- Handling Equipment & Procedures
ACOUSTIC MEASUREMENTS
ACOUSTIC TESTING
BELLOWS
CONTROL
DESIGN
ELECTRIC MOTORS
ENGINES
EQUIPMENT
LABORATORY EQUIPMENT
MANIPULATORS
MATERIALS HANDLING EQUIPMENT
MATERIALS TESTING
MECHANICAL STRUCTURES
MOTORS
NONDESTRUCTIVE TESTING
REMOTE CONTROL
REMOTE HANDLING EQUIPMENT
TESTING
ULTRASONIC TESTING