For the large work piece’s measurement.And the special structure makes operator close to the work pieces detected.FD-Whale series can finish the measurement with high-efficiency,high-precision,and can scan several of complex curved surface. The open structure makes the measurement of large work pieces have high-precision.And it can measure the super-large work pieces,such as manufacture of the motor field,space vehicle and large blade and so on. This series can meet some special field’s application such as aviation,machine tool,the precise measurement of super-large work piece and so on,especially the measure of gear.