Abstract:
A wind turbine blade includes an upper shell member and a lower shell member defining an internal cavity therebetween. The shell members are joined with a bond paste along bond lines at the leading edge and trailing edge of the blade. A seal member is disposed between the upper and lower shell members at a designed width of the bond line along at least one of the trailing or leading edges. The seal member comprises a dam on each of the lower and upper shell members that overlap in a mated configuration of the shell members.
Abstract:
A wind turbine blade includes an upper shell member and a lower shell member defining an internal cavity therebetween. The shell members are joined with a bond paste along bond lines at the leading edge and trailing edge of the blade. A seal member is disposed between the upper and lower shell members at a designed width of the bond line along at least one of the trailing or leading edges. The seal member has a configuration such that excess flowable bond paste is prevented from migrating past the seal member and into the internal cavity upon mating the upper and lower shell members in assembly of the blade.
Abstract:
A scanning spot microscope for performing a Fourier spectral analysis has means for performing a repeatable scanning operation which includes scanning an incident light spot to successive locations of a specimen. An interferometer is placed across an optical light path of the microscope, the interferometer including a birefringent device between polarizing devices in the path and introducing a given path difference. Means are provided for receiving and recording an optical signal due to the incident light spot from each successive specimen location. In use the given path difference is maintained during each scanning operation but is varied between scanning operations so that the optical signals relating to these specimen locations and the values of the given path difference can be recorded.
Abstract:
A wind turbine blade includes an upper shell member and a lower shell member defining an internal cavity therebetween. The shell members are joined with a bond paste along bond lines at the leading edge and trailing edge of the blade. A seal member is disposed between the upper and lower shell members at a designed width of the bond line along at least one of the trailing or leading edges. The seal member has a configuration such that excess towable bond paste is prevented from migrating past the seal member and into the internal cavity upon mating the upper and lower shell members in assembly of the blade.
Abstract:
A method and apparatus for determining the elemental composition of a sample (1) by plasma mass spectroscopy comprises introducing a said sample (1) into an inductively-coupled or microwave-induced plasma formed in an inert gas to generate atomic ions from the elements present in it; passing at least some of said atomic ions through a nozzle-skimmer interface (15-21) into an evacuated chamber (23), said interface comprising electrode means (19, 39) for determining the electrical potential at which said atomic ions enter said evacuated chamber (23) so that atomic ions of a given mass-to-charge ratio enter said chamber with a particular kinetic energy; energy filtering (40) the ions entering said chamber to prevent at least molecular ions of approximately said given mass-to-charge ratio having kinetic energies less than said particular kinetic energy from passing through; and mass filtering (22) the ions passed by the energy filter and detecting those of said ions having said given mass-to-charge ratio.
Abstract:
A wind turbine blade includes an upper shell member and a lower shell member defining an internal cavity therebetween. The shell members are joined with a bond paste along bond lines at the leading edge and trailing edge of the blade. A seal member is disposed between the upper and lower shell members at a designed width of the bond line along at least one of the trailing or leading edges. The seal member comprises a dam on each of the lower and upper shell members that overlap in a mated configuration of the shell members.