Abstract: An apparatus for analysis of a sample of a material is disclosed. The apparatus has a body configured to accept the sample and a detector with a plurality of points. The detector is configured to provide a signal about the intensities of light received at the points. The apparatus also includes a slit array having a plurality of slits configured to collected light from the accepted sample and a collimating lens array having a plurality of lenses configured to receive the light from the slit array and collimate the collected light. The apparatus also includes a diffraction grating configured to diffract the light received from the collimating lens array and a focusing lens configured to focus the diffracted light of a common frequency on a common point of the detector.

Abstract: A method of analyzing a sample is disclosed. The method includes the steps of measuring a spectral response of the sample, selecting a reference material having a Raman peak with a magnitude at a wave number, measuring a peak value in the spectral response at the wave number, and determining an amount of the reference material in the sample based in part on a ratio of the measured peak value to the magnitude of the Raman peak of the reference material.

Abstract: A fixture for dispensing a powder is disclosed. The fixture has a base and a beam with a first end, a second end, and a fulcrum disposed between the first and second ends and coupled to the base. The fixture also has a load transfer beam having a first end and a second end that is fixedly coupled to the base. A force sensor is coupled to the load transfer beam. The beam can rotate about the fulcrum with respect to the base and the second end of the beam makes a point contact with the first end of the load transfer beam.