| 主权项 |
1. A non-invasive method of determining the strength of an in service structure comprising the steps of:
obtaining data related to an in service structure for which a determination as to its remaining strength is to be determined, said data to be obtained includes visual height of said in service structure, circumference of said in service structure, and material for which said in service structure is constructed; determining an acoustical model profile for said in service structure, said acoustic module profile determined by 1) striking said in service structure, whereby a vibrational frequency signal is generated, 2) detecting said vibrational frequency of said stricken in service structure, and 3) converting said vibration frequency of said stricken in service structure into an acoustic pattern; comparing said acoustic pattern of said in service structure to a reference acoustic pattern obtained from a standard structure having a predetermined integrity value to determine said remaining strength value of said in service structure, whereby said reference acoustic pattern has a predetermined structural integrity value for a structure having the same visual height, circumference, and material as that of said in service structure; determining a remaining strength value based on comparison of said in service structure acoustic pattern and said reference structure acoustic pattern, said remaining strength value represented as a quantitative assessment of useful life remaining for the entire in service structure expressed as a percentage, said percentage value representing the ratio of the actual pole strength to a maximal strength for an in service structure made of a particular material. |
