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What is Particle Image Velocimetry
Particle Image Velocimetry (PIV) is a non-intrusive laser optical measurement technique for research and diagnostics into flow, turbulence, microfluidics, spray atomisation and combustion processes.
Application areas for PIV include:
Wind tunnel velocity experiments for testing aerodynamics of e.g. cars, train, aircrafts, buildings and other objects/structures.
Velocity measurements in water flows (e.g. research in general hydrodynamics, ship hull design, rotating machinery, pipe flows, channel flow etc.).
Spray research where there is a need to measure droplet velocities, cone angles, penetration length etc.
Environmental research (combustion research, wave dynamics, coastal engineering, tidal modelling, river hydrology etc.).
Experimental verification of CFD models
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Measurements of diameters without contact. The haloes present in a Petri dish can be sized with this device only by pushing the reset button in one edge of the spot and moving the holder to the opposite edge of the halo. The display shows the diameter with an accuracy of 0.1 mm.
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The Power Wizard™ power meter from Synrad offers a unique solution to the measurement of laser power and serves as a service tool to ensure maximum laser performance at any time. Designed to measure power levels from 1-250W, the PW-250 provides accurate measurement of average laser power, which is displayed on an easy-to-read LCD screen.
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The QPM Family
Gentec-EO’s QPM Series is a fully automatic laser power probe that calculates laser power by measuring temperature dynamics using a microprocessor. Its measurement and acquisition technique determines the time needed to carry out a measurement. Data acquisition is triggered and stopped by detecting set heat parameter thresholds. This technique is virtually error free and allows for multiple measurements without absorber forced cooling.
Power Range
Six models cover the full-scale powers from 500 mW to 10 kW. Their innovative measurement concept cuts the time to measure and display down to ten seconds on all probe models providing:
# Excellent accuracy (± 3 to 4%)
# Repeatability (± 1 to 2%)
# High resolution
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General description :
Coherent offers the broadest line of laser power meters and laser energy meters available anywhere. In addition, as the world's leading producer of laser systems, we thoroughly understand the practical requirements and challenges of using laser measurement tools. This puts Coherent in a unique position to configure a laser measurement system that provides the right combination of performance, features and cost for your particular needs. The modularity of the Coherent system also ensures that your investment will be protected as your needs evolve or change.
Our standard product line consists of four types of meters:
- Laser Power Meters
- Laser Energy Meters
- Laser Power and Energy Meters
- OEM Power and Energy Modules
Power-only and energy-only meters offer simplicity and economy. However, certain advanced capabilities are only available in dual (power and energy) meters, so these products should be considered, even if your use is purely for a single measurement type (power or energy).
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Melles Griot offers a wide variety of power and energy meters. Our integrated, broadband power meter uses thermopile technology, has a flat response from 200 nm to 20 µm, and can measure output power from 10 µW to 2 W. Our modular power meter system is based around two control units and a plethora of calibrated, interchangeable, thermopile, semiconductor, and pyroelectric detector heads capable of measuring cw and pulsed output power ranging from a few picowatts to 50 watts.
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Features
-NIST traceable calibration
-Measures power and wavelength with ILX Power/Waveheads
-Integrating sphere-based power measurements
-Measurement heads cover a wide wavelength range from 350 to 1700nm
-Power measurement up to 10W
-Free-space and fiber measurement heads
-Easy test system integration with standard GPIB interface
The OMM-6810B is the only power meter capable of measuring the optical power and wavelength of semiconductor lasers including short wavelength lasers, high power pumps, and fiber lasers. A variety of measurement heads cover wavelength ranges from 350 to 1700nm for power only or power and wavelength measurement.
In addition to precision power and wavelength measurements, the OMM-6810B is loaded with standard features such as log/linear display modes, auto ranging, user calibration, and reference measurement capability. All of these features plus an analog output and IEEE-standard GPIB interface combine to make this instrument a cost-effective laser diode development or production test tool.
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Bi-Directional Insertion Loss Test System or multi-mode or single mode with either singlemode or multimode internal source.
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Multichannel optical power meter with internal individual power meter modules for concurrent data acquisition with higher data acquisition rate.
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Fastest Monitor in our Product Range!
The S-LINK-2 is Gentec-EO’s first Multi-Channel, PC-Based, Power and Energy Monitor. Faster than any other monitor in our product range, with 10 kHz of REAL TIME data transfer for each channel, with no missing points. That’s right, you get every single pulse transferred directly into your PC, at 10 000 times per second!
Features
# 2 Channels
# Reads Pyroelectric Metallic Absorbers up to 6 kHz
# Real Time data Transfer of 10 kHz/Channel, No Missing Points or Averaging!
# Communication Through USB or Ethernet
# True measurement of RMS & PTP Stability, Repetition Rate and # of Pulses with Pyroelectric Detectors
# External Trigger
# Compact Design
# Competitive Price
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The SOLO 2 is our next generation SOLO monitor; making it our most complete handheld power and energy meter. You will find all the useful functions you liked on the SOLO PE, with improved performances and speed. Take a look at the main features of the SOLO 2:
# Reads both power and energy detectors
# Fast 200 Hz data transfer rate
# Reads fast energy detectors up to 3 kHz
# Large 78 x 58 mm LCD screen with backlight
# Full statistical functions in real time
# Unequalled 225 000 points data storage
# Fast prediction algorithm for accelerated power measurements
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OAI's Model 306 UV Power Meter is a highly reliable direct reading Instrument designed expressly for measuring light intensity at the wafer plane of mask aligners, UV curing light sources, and any other UV light source. Special probes enable measurement of light in the visible range. Calibration accuracy is within +/- 3% and is NIST traceable. Measurement repeatability is within /- 1%. It is auto ranging from 0.1 to 1999 mw/cm2 full scale and has 1% linearity in this range. This instrument features meter to meter matchability.
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These UV power meters are designed to measure and monitor the absolute optical power (mW/cm2) in the UV to vacuum UV region. These UV meters allow accurate UV measurement and control based on NIST standards for applications such as surface reforming and UV sterilization using excimer lamps or low-pressure mercury lamps, UV curing and semiconductor photolithography. UV power meters come with 6 types of sensor heads according to the wavelength needed.
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The DTS 500 positioning system complements the operation of Instrument Systems spectrometers by providing a route to full automation of measurements. The positioning system is in particular suitable for determining viewing angle dependent properties and spatial homogeneity of display, panel graphics and LED lamp modules. The DTS 500 saves valuable time by eliminating manual alignment and guarantees more exact results with improved reproducibility. Operation of the entire 5-axis system is fully integrated into the SpecWin Pro software. Measurement results can be viewed as luminance and contrast distributions in Cartesian or spherical coordinates with ISO contours lines. Data can additionally be exported in table format to Excel.
The DTS 500 is available in various configurations:
- stand alone XYZ positioning system (e.g. for testing back-lit display and control elements for the automotive and aviation industries)
- stand alone 2-axis goniometer (e.g. for measuring the spatial radiation pattern of lamp modules)
- complete 5-axis system mounted on an optical bench (e.g. for testing LCD displays and entire instrument clusters)
- optional mountings for TOP 200, LumiCam 1300 and LumiCam 4000 available
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Konica Minolta Sensing is the leading provider of Display Measurement instruments offering a broad range of highly specialised equipment to measure chromacity, luminance, flicker and color uniformity of any modern flat panel display using LCD, Plasma or OLED technology.
Display measuring solutions from Konica Minolta are considered "state of the Art" and are part of quality control devices in the production line of all major Display Manufacturers on a global scale.
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CA-100Plus has higher speed, higher performance, and lower cost than its predecessor, the CA-100, which has been a standard of the CRT manufacturing industry since 1990.
Engineered for both bench top and production floor use, and fully compatible with data from the earlier CA-100 model, the new Minolta CA-100Plus CRT Color Analyzer provides higher speed (maximum 20 times/second), as well as Luminance and Chromaticity measurements with a new low luminance capability to 0.05cd/m2, making it suitable for measurement of gamma characteristic and contrast adjustment. The CA-100Plus is equipped with 100 memory channels. Up to 5 sensing probes can be used for simultaneous multiple point measurement. A USB interface connects the CA-100Plus to a computer, and the NEW Software Development Kit makes it easy to use Visual Basic or Visual C to automate measurement and adjustment factors.
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Mii 2 mobile Color Analyzer PR0084
With the Mii 2 mobile Color Analyzer PR0084 acts it around a highly precise and highly sensitive color measuring system for the calibration of monitors. In the scope of supply a software is already contained, additional for on-line colorimetry is software for monitor calibration available.
Technical data:
Detector XYZ (CMF) silicone photo Cell
Optics 2 degrees of opening angles
Measuring range Luminanz: 0,05 to 3.000 cd/qm
Chromaticity: 0,05 to 500 cd/qm
Genauigkeiten* Luminanz: +-2% 1 digit (1 ~3,000cd/m2)
Chromaticity: +-0,002 Illuminant D65
Chromaticity: +-0,0025 CCT 4000-15000K
Chromaticity: +-0.0065 for other colors
Interface USB 2.0
Current supply of 4.7 to 5,5V DC over USB plugs
Measuring speed of max. 10 Messungen/s for low sensitivity
Max 4 Messungen/s for high sensitivity
Temperature compensation 20 to 40 degrees
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The latest generation of Konica Minolta lux meters, the T-10, replaces the globally successful models of the T-1 series. The small, easy-to-use handheld meters are capable of measuring intermittent light sources, can be connected to each other to form multi-point units, and are easily controlled with a PC. They have an extremely large measuring range of 0.01 to 299,000 1x with automatic range switching, and a large, backlight LCD. And all of that with Konica Minolta's renowned high level of precision in a small, compact design.
Areas of application
Konica Minolta lux meters are used whenever brightness and the quantity of ambient light must be measured. Even the measurement of average values and illumination is possible. Examples of their use include the measurement of workplace and street illumination, the production of lamps, as well as architectural, forestry, and agricultural applications. Deployment in hard-to-reach spaces and under water are possible, just as the metering of very large surfaces and projectors (ANSI lumens) by serial connection of several receptor heads. Metered values can also be visualized graphically and even fully automated by using the PC software.
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The LX 100 is a hand-held luxmeter for workstations, offices, sport installations, parking, commercial centers….dedicated to control and monitoring illuminance.
- From 0,1 to 150 000 lux (from 0,01 to 13940 fc)
- Illuminance for local measurements
- With timed measurement : min., max., average values.
LX 100 includes a pause function to eliminate any unrepresentative and unwanted illuminance or display a local result. It allows a relative measurement to a reference point for the quantification of increase illuminance or decrease illuminance.
The LX100 is supplied with calibration certificate.
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The spot luminance meters LS-100 and LS-110, categorized in the upper range of the DIN quality class B, are among the best hand meters on the market. The SLR (single lens reflex) optical system allows precise targeting and ensures the viewfinder showing the exact area to be measured, even at very short distances. This makes even precise focussing very easy. In addition to the measurement field and the measurement environment, the viewfinder also shows the measured luminance value. The pistol grip makes handling of the unit very secure. We paid special attention to minimize flare and to give precise V(lambda) correlation (CIE relative photopic luminosity curve). With the help of a close-up lens, areas as small as 0.4mm diameter can be measured.
Areas of application
Light sources of all types can be measured with the LS, for example signal, traffic lights, airport lighting, lamps, LEDs, picture tubes, etc., simply anything that emits light. Now you can, for example, guarantee minimum brightness, exchange lamps that are too dark, create quality assurance in the production of lamps, or check indirectly illuminated objects like movie screens.
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Konica Minolta, a global leader in optical technology, manufactures a complete line of light meters and spot meters to measure luminance, illuminance, chromaticity values, color temperature in Kelvin, and UV radiation.
Konica Minolta light meters are hand-held, battery operated, and lightweight. Several measure continuous and flickering light sources; others are capable of non-contact measurement of light sources or reflective surfaces. Konica Minolta's light and spot meters measure in lux and foot-candles, or foot lamberts and CD/m²
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Digital Light meter ( DLM 530 , DLM 531)
Digital Light meter :
ModelFDLM 530 Lux meter (Range : From 20 to 200,000 Lux )
Model: DLM 531 Lux/ Footcandle Meter
(Range : 20 Lux,200 lux, 2000 lux, 20,000 Lux; 20fc, 200fc, 2000fc, 20,000fc)
MDOEL : DLM 536 Datalogging light meter
DLM 530 Features:
For Simple One Hand Operation
Accurate Visible Compensation Filter ff1 is Used.
CIE (ă):ff1<2%,<3%,<5%,<8%,v(ă)Match
Cosine Response:ff2<2%
Range : From 20 to 200,000 Lux
Analog Output Standard
Valox Housing to Withstand Accidental Drops
Digital and Analog Output Function
Highly accurate ff1 Compensation and Diffuser ff2<2%
MAX/Data Hold Function
Backlit LCD Display
DLM531 Features:
For Simple One Hand Operation
Accurate Visible Compensation Filter ff1 is Used.
CIE (ă):ff1<2%,<3%,<5%,<8%,v(ă)Match
Cosine Response:ff2<2%
Range : 20 Lux,200 lux, 2000 lux, 20,000 Lux ; 20fc, 200fc, 2000fc, 20,000fc
Analog Output Standard (output impedance 500 ohm)
Valox Housing to Withstand Accidental Drops
Digital and Analog Output Function
Highly accurate ff1 Compensation and Diffuser ff2<2%
Peak Data Hold Function
Backlit LCD Display
High Accuracy : }3%rdg+10dgts
3 1/2 digit LCD display with a maximum reading of 1999
Automatic Zero
MODEL DLM 536
Spectrum of photo sensor meets C.I.E.
photopic curve V(l)
16000 Records Data logging capacity
RS-232 interface (software included)
Measurement of luminous intensity
(PC Software)
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Our cal-LIGHT 400 Calibrated Digital Light Meter uses a silicon photodiode sensor corrected to measure exactly like the human eye sees. Ergonomically designed for one-hand use. Simply Point..click..Done. Autoranging from 0.1fc or lux to 40,000fc or lux. Calibrated to NIST Standards. Three versions available: standard, back-lit or front-facing sensor. All come complete with instructions, battery, carrying case, integral stand and calibration certificate, CE Certified.
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Our cal-SPOT 401 is a Calibrated Spot Measuring Brightness Meter, autoranging from 0.1 to 400,000 cd/m**2, has a 1 degree measuring field, and a 12 degree FOV. Using a high stability silicon photodiode sensor, and no magnification, it provides standard human eye response, and can be used with both eyes open. Comes complete with instructions, battery, carrying case and calibration certificate.
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Description:
The model H100 is an ideal meter for measuring light levels in both lux and foot-candle units of measure. The meters wide measuring range allows it to be used in many applications such as interior design, photography, energy audits and installation of electrical fixtures. It is perfect for general applications, including measuring lighting levels in the home, office, restaurant, school, etc.
Features:
* Large LCD display with bar graph
* Wide measurement ranges: 40.00/400.0/4,000/40,000/400,000lux
* Display resolution: 0.04lux to 100lux, 0.01fc to 10fc (foot-candle = fc)
* 4 light type select (Tungsten, Fluorescent, Sodium or Mercury)
* Sensor meet C.I.E. spectrum, 2 filters
* Data hold, Record (max., min.)
* lux or foot-candle unit selection
* Longer battery life compared to 9V
* Displays values in both lux or foot-candle
* Two year warranty
Applications:
* Science experiments
* Photography
* Manufacturing
* Agriculture
* Artistry
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The latest generation of Konica Minolta lux meters, the T-10, replaces the globally successful models of the T-1 series. The small, easy-to-use handheld meters are capable of measuring intermittent light sources, can be connected to each other to form multi-point units, and are easily controlled with a PC. They have an extremely large measuring range of 0.01 to 299,000 1x with automatic range switching, and a large, backlight LCD. And all of that with Konica Minolta's renowned high level of precision in a small, compact design
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CA813 Lightmeters
The Lightmeter Model CA813 is a portable, easy-to-use instrument which features optical sensors that are designed to match the response of the human eye, making them ideal instruments for workspace analysis and planning. The ergonomically designed case, large display and intuitive function selection make this instrument the right choice for any application.
The Lightmeter Model CA813 is designed for simple one-hand operation. It provides selectable lux or footcandle units for display and features a 3 1/2 digit backlit LCD and HOLD function. The Model CA813 offers a PEAK function.
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Protected by a shockproof sheath in a compact case, the Physics Line CA 811 lightmeter measures lighting between 20 and 20,000 lux.
# 3½-digit display (2,000 counts)
# measurement range: 20 to 20,000 lux
# measurement by silicon photodiode
# resolution: 0.01 lux
# functions: HOLD / Backlighting / lux or fc /Max
# accuracy ±3%R + 10 counts
# I.E.C. spectral correction and incidence correction
# remote-controlled probe for all types of measurements
# shockproof protective sheath
# dimensions: 173 x 60.5 x 38mm - weight: 214g
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A handy, special measuring instrument for professional use in industrial, commercial and service applications, for special testing and inspection in accordance with existing safety regulations, for example at workstations with monitor screens, and in the fields of medical engineering and office technology.
The precision digital measuring instrument for measuring luminance is placed directly onto self-luminous surfaces, or surfaces through which light is passed, such as monitors (CRT/LCD, background illumination), TV screens, light tables, trough luminaires, illuminated advertising surfaces, traffic signs and viewing screens.
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