| Weldable gages can be spot welded under water with excellent results. Gages supplied on 3" x 3" x .050" steel plates can be arc welded on larger structural elements. Gages can operate at 500 PSI under sea water and are 100% immersion tested in water |  |
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| with specialized instruments for failure-free installation. | ||
| U.S. COAST GUARD ICEBREAKER TESTS | ||
| The U.S. Coast Guard required a pre-packaged weldable strain gage system for a new icebreaker that would operate in sea water and diesel fuel for antarctic sea trials lasting up to six months.
The design chosen consisted of a semiconductor strain gage bonded with M-Bond-610 adhesive to 1/2" x 2" x .005" thick stainless steel shim stock. Three vinyl jacketed, stranded copper leads were attached to the strain gage and threaded through a stainless steel tube in 20-60' lengths to extend out of the hostile environment. The gage area and lead tube were moisture proofed with two different compounds; one to resist diesel fuel and one to resist sea water. A series of tests were conducted to verify compliance with Coast Guard specifications including; gage factor, hysteresis, apparent strain, repeatability and leakage to ground tests. Tests were conducted in an environmental test chamber over the -60°F to 130°F temperature range. |
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| For more information on weldable gages............ |
| For more information on all HPI products, please contact our sales office: | ||
| sales@hitecprod.com | Tel: 978-772-6963 | Fax: 978-772-6966 |
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