Birefringence vs METechs SWCtrl

An interactive Michel-Lévy interference color chart that features a database of 562 minerals. Click on your observed color and section thickness, and the birefringence of your section will be automatically calculated, and candidate minerals will be suggested. The range of the chart can be be set to between 200 nm and 2500 nm. The chart can be offset by + or - λ, + or - λ/4. The chart can be used as a traditional nomogram, or displayed in a "simple" mode without the clutter of radial lines (which are no longer necessary on an interactive chart). Based on the methods of Sørensen (2013), the colors in the chart are a much truer representation of the colors seen at the microscope eye pieces than existing printed nomograms. The app includes optical and physical characteristics of candidate minerals including birefringence (minimum, maximum and mean), relief, optical character, pleochroism, color and cleavage. The app includes the Raith-Sørensen color chart, which is also interactive. The Raith-Sørensen chart is a direct representation of interference color as a function of birefringence and sample thickness (Sørensen 2013). A useful utility for polarized light microscopy, polariscopy, optical mineralogy, stress optics, or anyone with an interest in birefringent materials.

With this app and METechs SWCtrl control switch, relay, smart plug, light..., you can control motorized curtain rods, motorized roller shade systems, tubular roller motors, electric locks, lights, appliances, and other automation devices from your device, anywhere Increase energy efficiency and personal security by automatically opening or closing curtains with timer functions or home automation. If you are enthusiastic about automation or lazy lifestyle, control them by a simple touch or voice command. It works with Amazon Alexa or Google Assistant voice control; if you prefer, you still can control these devices with physical touch switches. Either way, METechs provides a truly Automation Lifestyle for everyone! [Key Features] •Directly controlled by a smartphone, no hub required •Works with Amazon Alexa, Google Assistant, or voice control •Work independently with or without Wi-Fi •Can be controlled in local and remote modes •Timing control devices any time in any day, weekday, or weekend •Multiple devices control by each other with IF…THEN… logic •Look up log for who, when, and where the devices were operated •Easily shares with others via the built-in Wi-Fi hotspot Our app may not be perfect yet and still under development. Our teams are working hard and smart to continually improve the app. Email Support@METechs.com with questions and comments. Visit www.METechs.com to find it out more.