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Spectroscopy and Spectrometers

March 29th, 2012 by admin

In research there are different types of data, not all of it is numerical. Certain scientific and engineering data uses light spectrums and wavelengths to understand their data. Some analysis is undertaken using spectroscopic data, which looks at the actions between energy and light to perform an analysis of the data in question. Spectroscopy is a type of analysis that is used in the identification of the atmospheres, stars and planets, it’s used for gas analysis, and analysing the composition of a substance through the analysis of a spectrum of light that emanates from it.

 

 

 

Spectroscopic analysis is used by scientists and engineers to understand the meaning of the data and its implications for further research and development. Researchers use different types of instruments to obtain results and undertake a spectroscopic analysis, infrared spectroscopy concentrates mainly on the identification of compounds and sample composition. Near infrared spectroscopy is mainly used in food, agricultural and pharmaceutical quality control. Raman spectroscopy employs laser technology to study low frequency action in chemistry and condensed matter physics, this article concentrates on the spectrophotometer

 

A spectrophotometer is an instrument for measuring the intensity of light and measure that as a function of the light’s colour and wavelength.

 

There are two parts to the spectrophotometer is actually two separate instruments, a spectrometer that is designed to produce light of whatever colour or wavelength and a photometer for measuring the light’s intensity by sending a votage signal to a galvanometer, a type of display unit. The spectrometer produces a spectrum of lines that allow the researcher to measure the wavelengths and intensity of the colour of the light. The instrument allows for advanced data processing and comparison that is indispensable to scientists and engineers engaged on a range of projects. The photometer is the tool that delivers the picture or plot of data to the display device; both are used by scientists and engineers employing multivariate data analysis methods.

Tower Of London Review

September 16th, 2011 by admin

I went to visit the Tower of London on a rare trip to the capital yesterday and have to say that I really enjoyed it. There’s a lot to see there, although I wouldn’t say that you need to spend a whole day, so you definitely get your money’s worth. For those who are interested I thought I’d do a short blog about it.

The best thing for me was probably the royal beasts section. There’s not much there aside from some facts about the animals that used to be kept by kings and queens at the tower, but the stuff they had in there was really interesting. For example, did you know that one of the kings had a pet polar bear? The keepers used to tie it to a rope and let it swim and catch fish in the Thames – must of been an interesting sight!

Considering the reputation of the tower there wasn’t really much in the way of gruesome sections of torture devices. There was the occasional mention of torture and mysteries in the tower, such as the disappearance of two boys who had a claim to the throne in mysterious circumstances, but it was almost like the people who run the tower today are trying to move away from its gruesome past. Even though it’s called the Tower of London, it’s really just a very large and impressive castle. For that reason it was usually only the most important prisoners that were kept there, which is why there probably isn’t any dungeons – or at least any that are available to be explored.