Resources Contact Us Home
Optical fiber probes for remote analysis

Image Number 10 for United States Patent #5185834.

An optical fibre probe for use with a spectrophotometer, for remote analysis of samples, includes a probe assembly having an outer tubular body member, a sleeve member, and a further tubular inner body member within that. Input and output optical fibres pass into the assembly from one end, and the fibres are terminated in ferrules secured within a ferrule plate which is mounted by means of grub screws at the end of the inner body member. Radiation emerging from the end face of the input optical fibre is reflected back within the probe to be focused on the end of the other fibre, after total internal reflection in the case of an ATR probe or after passing through a transparent sample in the case of a transmission probe. Lateral positioning of the ferrule plate and thus the ends of the optical fibres, across the optical axis, is achieved by differential tightening of the grub screws. Focusing is achieved by sliding the inner body member longitudinally in the sleeve member, and also rotating the inner body member if necessary. The inner body member and the sleeve member are then locked together by fully tightening the grub screws.

  Recently Added Patents
Methods and apparatus for preserving privacy in an RFID system
Distributed mobile access point acquisition
Pausing a VoiceXML dialog of a multimodal application
Method and system for establishing enhanced key when terminal moves to enhanced universal terminal radio access network (UTRAN)
Advocate for facilitating verification for the online presence of an entity
Picture information coding device and coding method
Apparatus and method for evaluating an activity distribution, and irradiation system
  Randomly Featured Patents
Process and apparatus for thermally treating fine-grained solids, particularly for burning ground raw material for making cement
Printed circuit board with differential traces
Sprayer nozzle
Voice recognition method by analyzing syllables
Low dielectric loss tangent-resin varnish, prepreg, laminated sheet, and printed wiring board using the varnish
Method of inhibiting prolactin
Antibiotic N-heterocyclyl thienamycin
Control of aerobic fermentation processes
Aryl and heterocyclic substituted propenamide derivatives
Solar cell and method for manufacturing the same