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Topic: Photometer

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	Sigrist-Photometer AG, Switzerland
		Welcome to SIGRIST-Photometer, a leading global supplier of process photometers for
		We keep users of our instruments happy and attract new ones by providing top quality products and services, creative new developments, value for money at competitive prices, and can-do customer service.
		Here its products are developed, produced and sold worldwide through a network of enthusiastic, well-trained representatives.
	www.photometer.com (88 words)

	Photometer
		Photometers are used to measure the intensity of the light produced by an unknown source in terms of a standard source.
		Photometers of this type are still in use today.
		The photometer head at the left is designed to be used in a dimly lighted room.
	physics.kenyon.edu /EarlyApparatus/Optics/Photometer/Photometer.html (669 words)

	Glossary
		These detection principles are used for measuring the turbidity value in liquids and gases, absorption, and fluorescence intensity.
		Because the properties of these components vary as a result of aging and fluctuations of the supply voltage and the ambient temperature, single-beam photometers are inherently unstable and require frequent recalibration.
		This is the alternating-light, dual-beam configuration used in Sigrist photometers.
	www.photometer.com /en/abc/abc_083.htm (428 words)

	Pocket Photometer
		The Chlorine Dioxide Pocket Photometer gives you the accuracy expected from your laboratory, no matter where you happen to be.
		The Chlorine Dioxide Pocket Photometer is packaged in a self contained, rugged carrying case, and has everything needed for measuring residual Chlorine Dioxide.
		The Chlorine Dioxide Pocket Photometer includes carrying case, 4 measuring cuvettes with caps, PPD-2 DPD Powder Pop Dispenser with 100 doses of DPD Free reagent, 30ml of Clycine Reagent, 4-AAA alkaline batteries and instructions.
	www.hfscientific.com /pocket_dioxide_photometer.htm (208 words)

	Photometer - Wikipedia, the free encyclopedia
		In the broadest sense, a photometer is any instrument used to measure illuminance or irradiance.
		As applied in industrial photometry, a "photometer" is the general term covering instruments for detecting:
		Most photometers are based on a photoresistor or photodiode.
	en.wikipedia.org /wiki/Photometer (130 words)

	Lovibond Tintometer - A Single Source for Testing Instruments and Reagents for Today´s Water Analysis
		When a light beam passes through the coloured sample, energy with a specific wavelength is absorbed by the test substance.
		The photometer determines the coloration of the sample by measuring the transmission or absorption of light of this wavelength (in other words, monochromatic light).
		The photometer then uses a microprocessor to calculate the required concentration and displays the result.
	www.tintometer.de /tintometer/english/e_g_photometer.htm (198 words)

	Pocket Photometer
		The Chlorine Pocket Photometer gives you the accuracy expected from your laboratory, no matter where you happen to be.
		With the added HF scientific's New PPD-2 Powder Pop Dispenser the Chlorine Pocket Photometer is packaged in a self contained, rugged carrying case, and has everything needed for measuring Free or Total Chlorine.
		The Chlorine Pocket Photometer includes carrying case, 4 measuring cuvettes with caps, 4-AAA alkaline batteries and instructions.
	www.hfscientific.com /pocket_photometer.htm (206 words)

	Using A Photographic Light Meter For Photometric Purposes (Site not responding. Last check: 2007-10-13)
		When a photometer receives light that has been reflected from a scene, it is called a reflected meter.
		In this case the photometer is being used as a reflected meter and the quantity being measured is luminance.
		From a photometric point of view, the accuracy of the photometer has been traded off for cost and range considerations which, in photography, are more important than accuracy.
	vsg.cape.com /~pbaum/meter1.htm (1930 words)

	photometer
		In astronomy, an instrument used to measure the brightness of stars or other celestial objects.
		A photoelectric photometer records the electric current generated when light from a source falls onto a light-sensitive surface, kicking of electrons, which are then amplified into a measurable current by a photomultiplier.
		An area photometer, or imaging photometer, on the other hand, measures simultaneously the light intensity at each point of an extended object such as a nebula or galaxy using CCD detectors or an infrared array.
	www.daviddarling.info /encyclopedia/P/photometer.html (152 words)

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