HSV-2000 High Speed Vibrometer - Features
The HSV-2000 series high speed vibrometer is used for velocity and displacement measurements up to 30 m/s. This system is widely used by Formula 1 engineers for the development of high performance racing engines.
Features
- Compact HSV-700 sensor head with fixed or variable focus
- Ruggedized industrial IP-64 proof housing
- Available for single channel or differential measurements
- Beam steering unit AK-800 for difficult to access locations
- Eye safe visible low power laser
- Velocity and displacement measurements up to 30 m/s
- Used by leading motor sports companies for improving engine design
System
The HSV sensor is based upon Polytec’s CLV sensor design. It comprises an HSV-800 laser unit housing the interferometer and low power laser plus the ruggedized and compact HSV-700 sensor head. The HSV-700 sensor is available in either fixed and variable focus versions. The fixed focus head has an extra long depth of field and is recommended for measuring large displacements. The laser unit(s) connects to the HSV controller which is available for single channel (HSV-2001) or differential (HSV-2002) measurements.
The HSV-2001 incorporates a 6 range displacement decoder with 0.32 mm resolution and a maximum displacement of ± 82 mm. In addition there is a single range velocity decoder for vibration frequencies up to 50 kHz and a fixed ranging of 5 m/s/V.
Applications such as valve train testing require differential measurements. One laser beam is targeted onto the valve while the other is directed onto the cylinder. The HSV-2002 provides separate velocity outputs for channel 1, ch 2 and ch 1 – ch 2. The displacement information is available for ch 1 and ch 1 – ch 2. The desired velocity and displacement output signals are selected via a rotary switch on the front panel.
Both controllers feature a large signal level display showing on a bar-graph the amount of return signal from the test object. The actual displacement range is selected via push buttons and indicated on an LCD display. The displacement measurement can be triggered via a front panel connector, e.g. for starting the measurement at a certain cam shaft position.
For data acquisition an existing FFT analyzer or digital oscilloscope is connected to the analog HSV signal outputs. In addition the Polytec displacement (fringe counter) PC board may be connected to the rear panel digital displacement output. Please check VibSoft-FC data sheet.
Accessories
AK-800 Beam Steering Unit
The AK-800 Beam Steering Unit was designed for precise positioning of the measuring laser spot on the test object. For spot positioning, the beam exit tube may be tilted and/or rotated. The AK-800 can only be used with the fixed focus version (ff) of the HSV-700 Sensor Head. Focus adjustment is achieved by moving the HSV-700 Sensor Head mounted on a common traverse stage with the AK-800. The AK-800 is oil-tight and was engineered specifically for valve train measurements.
CLV-A-Micro Microscope Adapter
This adaptor enables interfacing the HSV-700 Sensor Head to our standard microscope adapters MSV-050 and MSV-100 to enable high speed measurements through a microscope.
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