Functional Material Measurement
Laser Doppler Vibrometer
The DXLV-03 Fiber Laser Doppler Vibrometer integrates advanced optical testing technology and digital signal processing technology. The system provides high resolution vibration measurement with strong anti-interference capability and a wide dynamic measurement range.
Product Overview
The DXLV-03 Fiber Laser Doppler Vibrometer integrates advanced optical testing technology and digital signal processing technology. The equipment has strong anti-interference capability, high resolution and wide dynamic measurement range. It has been widely used in universities, research institutes and high-tech enterprises.
The system is easy to install and allows users to quickly obtain vibration data. It also works seamlessly with ferroelectric analyzers for high-precision strain measurement.
Technology Description
Measurement and analysis of vibration characteristics is an important method used to identify and verify the quality characteristics and operating conditions of machines and components.
Non-contact laser Doppler vibrometer technology based on laser interferometry has become one of the most important vibration measurement technologies due to its high displacement and velocity measurement resolution.
This technology is widely used in both scientific research and engineering measurement applications.
Features
- Non-contact measurement with high precision and high resolution
- Miniaturized and integrated design
- Strong anti-interference capability
- Not affected by ambient light or material color
- Coaxial transmission and reception without measurement blind spots
Technical Parameters
| Parameter | Specification |
|---|---|
| Optoelectronic integrated chip technology | Supported |
| Sensor sampling rate | 5 MHz |
| Displacement resolution | 0.01 nm |
| Measurement laser wavelength | 1310 nm |
| Measurement frequency range | DC – 2.5 MHz |
| Vibration frequency accuracy | 0.02% |
| Maximum vibration measurement | 4.5 m/s (high-speed version up to 20 m/s) |
| Analog output | ±5V |
| Software interface | Raw data interface and SDK support |
| Power supply | 12V |
| Power consumption | 4W |
| Light interference tolerance | > 60000 lux |
Application Cases
Laser Vibrometer + Variable Temperature Block Test Box
Adjustable electrode stroke of at least 3mm with 0.01mm resolution. Sample size less than 30mm. Sample box test voltage not less than 10kV. Heating temperature range RT – 250°C with imported temperature controller and over-temperature / over-current protection.
Laser Vibrometer + High Temperature Block Test Box
Electrode adjustable stroke ≥ 3mm with 0.01mm resolution. Sample size < 30mm. Sample box test voltage ≥ 10kV. Heating temperature range RT – 800°C using imported temperature controller with over-temperature and over-current protection.
Laser Vibrometer + High and Low Temperature Test Fixture
Suitable for strain measurement of devices and bulk materials. Sample size < 40mm. Sample box test voltage ≥ 2kV. Temperature range −196°C – 250°C with imported temperature controller and full over-temperature / over-current protection.
Laser Vibrometer + Thin Film Cantilever Beam Test Fixture
Combined with thin film piezoelectric test (E31), the laser vibrometer measures piezoelectric coefficients (E31, D31, D33 and E33) of films deposited on cantilever beams. Voltage applied to the film causes bending of the substrate, and the displacement is captured with high precision to obtain thickness displacement versus voltage characteristics.