Ready to use Volume Velocity Sources incorporating special two-microphone design for precise, in situ measurement of volume velocity in real time. Suitable for a range of acoustic environments from enclosed condition close to tyres or engine components, or open conditions some distance from a reflecting surface.
Type 4250
Volume velocity sources (VVS) are used as ‘acoustical shakers’ to measure acoustic frequency response functions – sound pressure per unit volume velocity – typically in connection with noise source contribution analysis. Uniquely, HBK volume velocity sources use a special dual-microphone probe to measure accurate volume velocity directly in real time.
HBK 4250 wideband volume velocity sources cover the full acoustic frequency range with two powerful drivers to maximize signal-to-noise in real-world conditions, and three probes providing calibrated volume velocity in the low-, mid-
and high-frequency ranges.
The driver units are designed to handle real-world measurement scenarios with high transmission loss or background noise that cannot be reduced, such as in outdoor situations.
Built-in overload protection ensures robust performance.
When used with BK Connect® software, volume velocity is monitored and measured in real time. Vibro-acoustic frequency response functions – sound pressure per unit force – can be measured using the reciprocal method and acceleration per unit volume acceleration.
CAPABILITIES
Code | Actions | Price | Availability | Name |
---|---|---|---|---|
-4250-C-003- |
|
HF VVS Hose and Nozzle | ||
-4250-C-004- |
|
HF VVS Driver | ||
-4250-E-- |
|
Wideband Volume Velocity Sources | ||
-4250-D-- |
|
Low-Mid Frequency Volume Velocity Source | ||
-4250-B-- |
|
Mid Frequency Volume Velocity Source | ||
-4250-B-003- |
|
MF VVS Hose and Nozzle | ||
-4250-A-003- |
|
LF VVS Hose and Nozzle | ||
-4250-A-- |
|
Low Frequency Volume Velocity Source | ||
-4250-C-- |
|
High Frequency Volume Velocity Source | ||
-4250-A-004- |
|
LMF VVS Driver |
File |
Description |
Type |
Languages |
Size |
---|---|---|---|---|
Product Data: HBK 4250 Wideband Volume Velocity Sources (bp2682) | Technical Document | English | 1 MB |
Product Code | Description |
---|---|
-2755-A-X- | 2755 Smart Power Amplifier (w/o Wi-Fi) |
-2755-X-- | 2755 Smart Power Amplifier |
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.