Critical Alignment Measurements - Part 3: Torpedo Tubes
Alignment of components is critical throughout the defence industry to ensure both durability and safety of military equipment
The problem - To provide an easy to operate method of checking the straightness and diameter of torpedo tubes to within an accuracy of 0.05mm (0.002in). This method also eliminates the use of long, cumbersome plug gauges and the need to dry dock vessels whilst the checks are carried out.
The Solution - The measuring system uses a trolley with a central glass target, which is towed along the entire length of the tube. The target is viewed through the micro alignment telescope, vertical and horizontal displacements at preselected points measured and recorded. Simultaneously the tube diameter is measured by means of displacement transducers incorporated in the arms of the measuring head. Recorded data is used to prepare a graph of the tubes interior for comparison with a template which specifies the profile necessary for a torpedo to pass cleanly through the tube. A CCD camera, with software attached to a laptop greatly speeds up an simplifies the measurement.
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Through CEMMNT clients gain access to a wide range of alignment and level measuring instruments, including optical, mechanical and electronic measuring devices from Micro-alignment telescopes, electronic levels to auto-collimators. These systems are capable of measurement of geometric parameters such as straightness, angle, squareness, flatness and are used in a wide range of applications in a variety of industries from machine tools and aerospace to calibration laboratories.
Autocollimators - These instruments can be either digital or visual with manual or software data collection. Parameters such as angle, straightness, squareness and parallelism can all be measured with micron or sub second precision, allowing alignment and measurement of features such as precision guideways or alternatively angle of indexing tables or spindle squareness.
Electronic Levels and Clinometers - Ranging from high precision bubble levels to precision electronic levels, the range of electronic levels and clinometers available are suitable for a wide variety of applications. These devices can measure to sub second accuracy with measurement ranges from 360 degrees and level measurement to 0.1 seconds, enabling measurement of flatness, angle, straightness and more.
Micro-Alignment Telescopes - A popular range of instruments used in industries such as marine and aerospace, the micro-alignment telescope provides precision alignment to micron accuracies. These systems are robust, reliable and portable and are suited to measurement in workshops as well as laboratory environments. A full range of accessories ensure versatility to a wide range of applications