Scanning Laser Doppler VibroMeter

The scanning laser vibrometer scans the surface of an object with a laser beam and analyzes the reflected light signals to determine vibration displacement. It is used to measure the vibration characteristics of materials and finds applications in coating adhesion testing and paper flexibility detection.
Selection
When selecting, consider whether the measurement frequency range and accuracy match the sample characteristics, and ensure the laser wavelength is suitable for the material's reflectivity. Environmental interference resistance and sample size determine the scanner head configuration, while the software must support industry-standard data formats.

Terms

Standards

Instruments

With red and blue dual laser scanning mode fast switching, the highest accuracy of 0.03mm, scanning rate of 320000 times/second, support automatic positioning and dynamic measurement, environmental adaptability.

$ 40424.00

With red and blue laser dual mode fast switching, accuracy up to 0.03mm, scanning rate of 480,000 times/second, support automatic positioning and dynamic measurement, external environment influence is small, can work in direct sunlight.

$ 42239.00

Using laser scattering technology, the detection sensitivity is 0.01mg/m ³, the Measurement range is 0.01~ 100 mg/m ³, with self-cleaning and clean gas Shielding functions, and supports a variety of cutters and timing sampling modes.

$ 2139.00

Using laser scattering technology, Sensitivity up to 0.001mg/m ³, Measurement range 0.001~ 10mg/m ³, with self-cleaning and filter sampling functions, support a variety of cutter options, to achieve rapid continuous monitoring.

$ 2139.00

The stainless steel frame is suitable for wet and dry screening, laser engraving ensures clear traceability, and the aperture of 100μm meets the needs of fine grading.

$ 805.00

Featuring a stainless steel frame, suitable for dry, wet, and manual sieving, with a 500 μm aperture, laser-engraved labels provide clear identification and full traceability.

$ 604.00

Using electromagnetic wave scanning technology, high frequency scanning depth 50mm, Measurement range 0-99.9%, Response Time 1 second, no contact can be measured without damage to the internal moisture content of the object.

$ 225.00

Featuring a stainless steel frame suitable for dry, wet, and manual sieving, with a pore size of 250μm, laser engraving provides clear labeling to ensure full traceability.

$ 791.00

Adopting stainless steel frame, suitable for dry, wet and manual screening, with a aperture of 150 μm, laser engraved labels ensure clear traceability and meet ISO standards.

$ 604.00

Temperature range -50~ 900 ℃, object distance ratio 12:1, Response Time 500ms, support laser positioning and data locking, easy to operate.

$ 138.00

Measurement accuracy of +/- 2% F. S, viscosity range of 1~ 2000000mPa · s, with automatic scanning function and automatic stop measurement, support multi-rotor specifications and eight Rotation speed switching.

$ 559.00

Temperature range -50~ 600 ℃, accuracy +/- 1.5%, support laser positioning and backlight display, Response Time 500ms, object distance ratio 12:1, easy to quickly and accurately measurement.

$ 94.00

Using microcomputer drive technology and imported stepper motor, Rotation speed is accurate and stable, viscosity range 1~ 100000mPa · s, with automatic scanning function, can automatically recommend rotor and Rotation speed combination, improve measurement efficiency.

$ 465.00

Using professional mechanical design and microcomputer control technology, Measurement accuracy of +/- 2% F. S, with automatic scanning function to intelligently select rotor and Rotation speed, support RS-232 communication and temperature sensor interface expansion.

$ 520.00

Using electromagnetic wave scanning technology implementation nondestructive detection, Measurement range 0-70%, Response Time only 1 second, support 10 kinds of material code selection and temperature compensation function.

$ 167.00

Articles

Comparison of Selection Parameters for Stylus and Laser Roughness Measuring Instruments
Stylus-type roughness measuring instruments perform contact scanning to measure two-dimensional profile parameters in accordance with standards such as ISO 4287, while laser-based instruments utilize non-contact optical principles and refer to ISO 25178.
Transmittance Meter Selection Guide: Principles for Matching Light Sources and Samples
This article introduces how to select the light source for a transmittance meter based on sample characteristics. The types of light sources include halogen tungsten lamps, LEDs, and lasers, which are suitable for wide-band, monochromatic, or high-precision measurements, respectively.
Tap density tester evaluates the accumulation characteristics of sprayed powder.
This article introduces how to use a tap density tester to evaluate the packing characteristics of spray powders. The tap density tester simulates vibration to densely pack the powder and measures the mass per unit volume, thereby obtaining the tap density.
Laser particle size analyzer measures the particle size distribution of spray powder.
Laser particle size analyzers measure the particle size distribution of sprayed powder based on the principle of light scattering, which is critical for coating uniformity and adhesion. During measurement, the powder must be dispersed in a suitable medium to avoid agglomeration, and tests should be repeated to ensure accuracy.
Vibration test bench simulates transport packaging environment testing.
Vibration testing tables simulate the vibration environment during transportation in the laboratory to test packaging and evaluate its protective performance. The tests primarily follow domestic and international standards, simulating sinusoidal or random vibrations that cover typical transportation conditions such as road and rail.
Laser particle size analyzer analyzes particle size distribution of paint pigments.
This article introduces the application of laser particle size analyzers in analyzing the particle size distribution of paint pigments. It mentions that the particle size distribution of pigments affects the optical properties, stability, and rheological characteristics of coatings.
The impact of temperature, humidity, and vibration coupling in a three-environmental test chamber on the structural fatigue of products.
This article explores the impact of the coupled effects of temperature, humidity, and vibration in a three-comprehensive test chamber on the structural fatigue of products. It explains how such a coupled environment accelerates the degradation of material performance, such as high temperature and humidity reducing the material's fatigue limit, while vibration promotes crack propagation.
Performance Comparison and Selection Guide Between Electric Vibration Tables and Hydraulic Vibration Tables
Electric shakers and hydraulic shakers are two commonly used vibration testing devices, each with different working principles. When selecting a model, factors such as test frequency, specimen weight, displacement requirements, and cost need to be considered.
Selection Differences Between Random Vibration and Sine Vibration Tests
This article primarily discusses the differences between random vibration and sinusoidal vibration tests. Sinusoidal vibration uses a periodic signal at a single frequency, making it suitable for identifying resonance points and conducting fatigue tests. Random vibration, on the other hand, employs a broadband random signal to simulate real-world environments, such as transportation jolts, making it more appropriate for reliability acceptance testing.
Key points for selecting a multi-factor comprehensive test chamber with integrated temperature, humidity, vibration, and altitude systems
The multi-factor comprehensive test chamber integrates four environmental stresses: temperature, humidity, vibration, and altitude (low pressure), used to simulate the reliability of products under complex environmental conditions.
Selection Guide How to Choose a Vibration Test Bench Based on Testing Standards
When selecting a vibration test system, start by carefully reviewing the test standards to clarify key parameters such as frequency range, thrust force, displacement, acceleration, and vibration type. Then, based on the standard requirements, calculate the required thrust force, match the specifications of the shaker and amplifier, and select an appropriate control system.
For electromagnetic vibration tables, whether to choose sweep frequency or fixed frequency testing standards for simulating transportation is crucial; do not make a random selection if you are unsure.
The electromagnetic vibration table is used to simulate transportation vibrations and test the durability of products and packaging. There are two types of tests: fixed-frequency and sweep-frequency. The selection should be based on the test objectives and relevant standards to avoid arbitrary choices. For new products, it is recommended to first conduct a sweep-frequency test to identify resonance points, followed by fixed-frequency tests as needed.