document: Laser-based internal profile measurement system An automatic laser-based system to measure the internal profiles of various structures has been developed . The system uses a point laser source through a rotating optical device fixed on to a laser measurement meter . A notebook computer with custom software is used to control the laser meter and rotating device to estimate the scanned profile shape and to determine the resulting cross-section area . The information provided by this system is essential to construction industry , including window and door builders ; the glass , panel , board , and floor tile manufacturers ; carpet venders ; and building contractors for cost estimation and production control . As a result , the lead time for delivering the customized windowpanes , woodwork , floor tiles , and ceilings can be reduced . Applications of this system for measuring the shapes of window frames and floor plans are described and demonstrated . The measurement accuracy is evaluated and analyzed . Results have indicated that the measurement accuracy can be achieved within 4 % of the measurement distance , for typical window designs and floor patterns required by major window manufacturers . Recommendations to improve the system are also included
doc_bio_tags: O O O O O O O O O O O O B I O O O O O O O O O O O B I I O O B I I O O O O O O O O O O O O O O O O O O O B I O B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I I O B I O O B I O B I O B I O O O O O O O O O O O B I O O O O O O O O O O O O O O O O O O O O O B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
extractive_keyphrases: internal profiles point laser source rotating optical device laser meter rotating device floor tile manufacturers carpet venders building contractors cost estimation production control customized windowpanes window frames
abstractive_keyphrases: laser-based internal profile measurement system