Sampling heads for handheld RAMAN spectroscopy devices

A sampling head assembly for use on a handheld spectroscopy device, the handheld spectroscopy device including an electromagnetic radiation source, an electromagnetic radiation detection and a processing module located within a housing having a housing exit for electromagnetic radiation and for capture of an emitted electromagnetic radiation from a sample material, the sampling head assembly comprising:

• a collection interface member having a central aperture for placement over the housing exit;
• a calibration clamp member disposed adjacent to the collection interface member, the clamp member with an aperture disposed collinear with the central aperture of the collection interface member;
• a sampling tube member disposed through and collinear with the calibration clamp member with a proximal end of the tube member disposed over the central aperture of the collection interface member;
• and
• a sampling tube cover member disposed over a distal end of a sampling tube member, thereby forming the sampling head assembly.

A handheld Raman spectroscopy apparatus for performing spectrographic measurements on a sample material, the Raman handheld spectroscopy apparatus having a housing configured to have an exit for electromagnetic radiation and for capture of an emitted electromagnetic radiation from the sample material, the Raman handheld apparatus comprising:

• a laser module for emitting electromagnetic radiation on the sample material;
• a spectrometer module for receiving and detecting electromagnetic radiation received from the sample material;
• a processing module communicatively coupled to the laser module and the spectrometer module disposed within the housing, the processing module configured to control energization of the laser module and processing of spectrographic measurements received from the spectrometer module;
• and
• a housing-to-sample material interaction assembly disposed about the housing exit wherein a distal end of the interaction assembly is configured to receive interchangeable sampling heads that reduce light interference during a Raman measurement of sampled materials having different shapes and sizes, the interaction assembly including:
• a collection interface member having a central aperture for placement over the housing exit;
• a calibration clamp member disposed adjacent to the collection interface member, the clamp member with an aperture disposed collinear with the central aperture of the collection interface member;
• a sampling tube member disposed through and collinear with the calibration clamp member with a proximal end of the tube member disposed over the central aperture of the collection interface member;
• and
• a sampling tube cover member disposed over a distal end of a sampling tube member, a distal end of the tube cover member configured to receive the interchangeable sampling heads.