Laser diffraction particle size analyzers are used to measure the sizes of particles in a material. Particle size is calculated by measuring the angle of light scattered by the particles as they pass through a laser beam. Laser diffraction analyzers are used in many applications, including manufacturing, quality control and product development. Because this technique can continuously measure particle sizes across a wide range, from 10 nm to 3 mm, laser diffraction particle size analyzers are often used in industrial settings.
A laser diffraction particle size analyzer uses multiple light detectors, with more detector elements extending sensitivity and size limits. The time needed to measure particle sizes varies by instrument, ranging from 2 seconds to 10 minutes per sample. The light source used by a laser particle size analyzer also affects particle size measuring limits; shorter wavelength violet and UV lasers are better suited to measure submicron-sized particles than red lasers.
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Bettersize Instruments Ltd.
- 0.02 - 2600µm (Wet)
0.1 - 2600µm (Dry) - High-power optical fiber laser (10 mW / 635 nm)
- Typical measurement time: Less than 10 seconds
- 92 detectors (forward, lateral and backward arrangements)
Bettersize Instruments Ltd.
- 0.01 - 3500 µm (Laser System)
2 - 3500 µm (Image System) - Polarized light-pumped solid-state laser (10 mW / 532 nm)
- Less than 10 seconds
- 96 detectors (forward, lateral and backward arrangements)
HORIBA Scientific
- 445nm Blue Diode Laser (350mW), 520nm Green Diode Laser (60mW), 635nm Red Diode Laser (35mW)
- Approx. 10 minutes
- Inquire
Malvern Panalytical
- 0.01 to 3500 µm (Wet analysis), 0.1 to 3500 µm (Dry analysis)
- Max. 4mW He-Ne, 632.8nm, 10 mW 470 nm Diode.
- < 10 s
- Log Spaced State-of-the-Art Detector array
Malvern Panalytical
- (Lab and Pro) 0.1 - 1000 µm / (Ultra) 0.01 - 3500 µm
- (Lab / Pro / Ultra) Max. 4mW He-Ne, 632.8 nm / (Ultra) Max. 10mW LED, 470nm
- < 10 sec
- Log-spaced array
Bettersize Instruments Ltd.
- 0.1 µm - 1000 µm
- High-power fiber semiconductor laser (10 mW/635 nm)
- Less than 10 seconds
- 86 photodetectors (forward, lateral and backward arrangements)
Genizer LLC
- 1nm-10µm
- Blue laser and green laser
- Fewer than four minutes
- Photomultiplier tube (PMT)
HORIBA Scientific
- Minimum volume of 12 µL*3 to 1000 µL (differs depending on cell material)
- Diode-pumped frequency-doubled laser (532 nm, S2 / Z2 10 mW, HS2 / HZ2 100 mW)
Detectors: Photomultiplier tubes (PMT)
- Approx. 2 min. under ordinary conditions
(from the start of measurement to the display of results for particle size measurement)
- Photomultiplier tubes (PMT)
HORIBA Scientific
- 10 nm - 5000 µm (Option dependent)
- Red solid state 5 mW laser diode (650 nm), Blue solid state 3 mW LED (405 nm)
- 60 seconds from liquid filling, sampling and measurement to rinsing
- Inquire
HORIBA Scientific
- Approximately 10 mg to 5 g (Depending on the particle size, distribution, and density)
- Laser diode 5mW, λ=650nm
- Data can be obtained in as little as ten seconds.
- 64 ring detectors x 1, Silicon photo detectors x 6
Malvern Panalytical
- 0.1 to 1000 µm
- Max. 4mW He-Ne, 632.8nm
- < 10 s
- Log Spaced State-of-the-Art Detector array
Malvern Panalytical
- 0.1 to 2000 um
- 5 mW, 632.8 nm HeNe Laser
- 30 s (Rapid mode), 60 min (Continuous mode)
- 36 element log-spaced silicon diode detector array
Shimadzu
- 17 nm to 2,500 µm
- Red Semiconductor laser (Wavelength 680 nm)
- 1 sec
- Total 84 elements (78 forward, 1 side, 5 back)
Shimadzu
- 7 nm to 800 µm
- Semiconductor laser (Wavelength 405 nm)
- 1 sec
- Wing sensor ll
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