measuring platform
1.Applying the theory of sphere contact, lichee elastic modulus measuring equation with small deformation was deduced. The lichee acting force at small deformation was dynamically measured on a self-designed measuring platform for agricultural material. The elastic modulus of lichee which ranges in 0.3x104~1.0x104Pa was achieved.
9.Airborne 3D remote sensing information acquiring system which integrates GPS、 attitude measuring sensor、scanning laser range-finder and remote sensor into a complete remote sensing survey platform is a new remote sensing system with air-to-ground directly positioning system, but each of these four sensors may have error which can affect the geo-referenced 3D position.

