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A nephelometer [1] or aerosol photometer [2] is an instrument for measuring the concentration of suspended particulates in a liquid or gas colloid. A nephelometer measures suspended particulates by employing a light beam (source beam) and a light detector set to one side (often 90°) of the source beam.
the nephelometer: an instrument for estimating the number of bacteria in suspensions used for calculating the opsonic index and for vaccines. joseph mcfarland, m.d. jama. 1907; xlix(14):1176-1178.
The propensity of particles to scatter a light beam focused on them is now considered a more meaningful measure of turbidity in water. Turbidity measured this way uses an instrument called a nephelometer with the detector set up to the side of the light beam. More light reaches the detector if there are many small particles scattering the ...
It is performed by measuring the scattered light at an angle from the sample being measured. [2] In diagnostic nephelometry, the ascending branch of the Heidelberger-Kendall curve is extended by optimizing the course of the reaction so that most plasma proteins’ (from human blood) measurement signals fall at the left side of the Heidelberger ...
Nephelometer – an instrument used to measure suspended particulates in a liquid or gas colloid. Gas-phase nephelometers are used to provide information on atmospheric visibility and albedo; Nephoscope – an instrument for measuring the altitude, direction, and velocity of clouds
Measuring instruments in fiction: Captain Nemo and Professor Aronnax contemplating thermometers, barometers, clocks, etc. in Jules Verne's 1869-1870 science fiction novel Twenty Thousand Leagues Under the Seas Fun measuring instruments: a Love Meter and strength tester machine at a Framingham, Massachusetts rest stop.
The 17 kg (37 lb) cone-shaped atmospheric probe measures just 40 cm (16 in) across, which was chosen to accommodate the electronics and the focal length of the nephelometer. [4] The probe outer mould line is a scaled-down version of the Deep Space 2 probe. Like the Deep Space 2 probe, the probe carries no parachute nor does it eject its heat ...
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