Measuring vibrations in confined spaces
The VibroFlex Fiber is a fiber-optic vibrometer sensor head and particularly suitable for short measurement distances. Even almost inaccessible measurement points can be reached by using the flexible and slim optical fiber cables. In addition the VibroFlex Fiber sensor head is capable of measuring differentially, i.e. it can acquire relative movements between two sample points. The differential interferometer separates the different motion vectors already in the optical signal path and allows high-resolution measurement with inherent absolute phase stability. Thus VibroFlex Fiber extracts minute vibrations of components on heavily vibrating structures.
VibroFlex – the superior flexibility of laser vibration measurement.
Highlights
- Small fiber heads with a diameter of only 10 mmreach hard-to-access measuring points
- Differential optics detects relative movementbetween two measuring points
- Absolutely phase-accurate measurement betweentwo measuring points
- Can also be used for single-point measurements
- Versatile optical accessories
- µm-sized laser measuring point for small structures
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Technical data
| Property | Value |
|---|---|
| Max. frequency bandwidth | DC – 32 MHz (Connect+) |
| Measurands | Velocity, Displacement, Acceleration |
| Max. vibration velocity | ±12 m/s |
| Velocity ranges | ±1 mm/s – ±12 m/s |
| Best velocity resolution | 4 nm/s/√Hz |
| Best displacement resolution | < 45 fm/√Hz |
| Max. acceleration | 100.000 km/s² |
| Signal processing | FPGA-based |
| Property | Value |
|---|---|
| Optical design | Differential fiber interferometer |
| Measuring laser | 633 nm (HeNe, visible red) |
| Measuring laser power | < 1 mW |
| Pilot laser (target beam) | HeNe = measuring laser |
| Laser safety class | Class 2 |
| Working distance | 60 mm .. 3 m |
| Focusing | Manual (Fiberhead) |
All outputs via Frontend Connect+
| Property | Value |
|---|---|
| Operating temperature | +5 ... +40 °C |
| Relative humidity | max. 80 %, non-condensing |
| Protection class | IP40 |
| Power consumption | approx. < 15 W |
| Weight | 5 kg (laser unit) |
| Dimensions (L x W x H) | 319 x 155 x 163 mm |
Click here to view the technical features of the Connect+ frontend
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Related products
VibroFlex
- Modular system for optical vibration measurement up to 32 MHz
- Flexible setup: microscope objectives for tiny structures or measurement of large objects from a safe distance
- Ideal for R&D (faster time-to-market) and reliable in-line inspection
- QTec® multi-path interferometry: stable signal level, 20 dB better SNR, faster and clearer results without post-processing
VibroFlex Connect+
The Brain behind the measurement. Experience latest-generation FPGA signal processing. The Connect+ front-end decodes raw data into precise displacement, velocity, and acceleration with touch-free WiFi control.
VibSoft
VibSoft is a comprehensive and easy-to-use software package for vibration data acquisition and analysis. VibSoft closes the gap between raw signal acquisition and profound analysis of vibration measurement data, offering optimum performance with laser vibrometers.