Solution for Analysis of Glass Trace Evidence

Craic Technologies and Laboratory Imaging have introduced rIQ, which combines sophisticated image analysis, advanced optical design and electronics to aid criminalists in forensic laboratories. rIQ, which stands for refractive Index Quantification, is offered in a standalone configuration, as part of a micro spectrophotometer that includes colour analysis of glass, or as an upgrade package. It was developed to enable criminalists in modern forensic laboratories to measure the refractive index of multiple glass fragments simultaneously, quickly and with the highest accuracy.

Glass fragments are common at crimes scenes and rIQ enables the forensic scientist to measure and compare the refractive index of the smallest fragments of glass with a high degree of accuracy. When combined with Craic Technologies' microscope spectrophotometers and micro colorimeters, the transmission and fluorescence spectral characteristics of glass evidence can also be determined quickly and accurately with the same instrument. rIQ is an automated system that uses the thermal immersion method, as defined by the standard ASTM E1967-98, to measure the refractive index of microscopic glass fragments.

The system, which incorporates many years of experience with the analysis of glass, allows the user to analyse the refractive index of multiple glass fragments simultaneously and with sophisticated analytical techniques. Statistical analysis methods can also be applied but the instrument is also designed to be user friendly with a short learning curve. rIQ is offered as a standalone package, as an add-on package to Craic Technologies' micro spectrophotometers and as an upgrade package for older units already in the field.

A standalone package consists of a phase-contrast microscope, a high-resolution digital camera, the optical interface, a thermal stage, the controlling electronics and the rIQ software. The add-on package can be integrated with many Craic Technologies' micro spectrophotometers models, both past and present, to allow them to measure the colour, absorbance microspectra, fluorescence microspectra and the refractive index of the smallest of glass fragments.

Comments

Post a Comment

Popular posts from this blog

What is Class I Division 2?

Image
A Class I Division 2 is a location: (1) In which volatile flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are handled, processed, or used, but in which the liquids, vapors, or gases will normally be confined within closed containers or closed systems from which they can escape only in case of accidental rupture or breakdown of such containers or systems or in case of abnormal operation of equipment, or (2) In which ignitable concentrations of flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are normally prevented by positive mechanical ventilation, and which might become hazardous through failure or abnormal operation of the ventilating equipment. Class I Division 2 Classification Class I Division 2 refers to the ANSI/ISA 12.12.01 standard. This standard was previously UL1604 until UL recommended the newer ANSI/ISA standard be used and that all hazardous location products be certified under this standa
Read more

FUSE SIZING CONSIDERATIONS FOR HIGHER EFFICIENCY MOTORS

Image
When selecting the proper fuse for short circuit protection in motor starting applications, it is important to not only ensure that the fuse will not nuisance open during motor start up times, but also that the fuse will coordinate as required with overload relays. When sizing fuses between 125% and 150% of the motor nameplate current, several advantages, including ease of coordination with an overload device, a smaller disconnect, and increased short circuit protection from a lower fuse rating, can be achieved. However, if sizing at this level prevents the motor from starting, it may then be necessary to increase the fuse ampere rating and it then becomes important to know the NEC sizing limitations. As of June 1, 2016, the US Department of Energy has mandated that newly manufactured electric motors will need to meet NEMA Premium® efficiency standards. As motor efficiencies increase, motor locked rotor currents can also be expected to increase. In addition to this, with across-the-lin
Read more

7/8 16UN Connectors that Provide 600 Volts and 15 Amps

TURCK announces new A-Size 3 and 4-pin 7/8 16UN powerfast™ connectors that provide up to 600 Volts and 15 Amps of power. These IP67 rated connectors provide a modular wiring system designed to handle high current applications for machine power distribution, while providing resistance to vibration commonly associated with conveyors, motors and material handling applications. The cordsets are available with a tray rated, exposed run PVC flexlife ® cable, with or without STOOW rating, and 14 AWG wires that allow you to replace hard wiring with a robust, quick disconnect system that saves the time and money spent installing a conduit system. The A-Size powerfast line offers male and female, straight connectors, standard and custom lengths, and pigtails or extensions. To make the system complete, fully encapsulated mating receptacles, with 1/2”-14 NPT mounting threads are available.
Read more