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ACOUSTIC SENSORS & TESTING SOLUTIONS
Sound Intensity Probes

USP regular | 3D Acoustic Vector Sensor

A unique 3D Acoustic Vector Sensor

The USP Regular is an acoustic vector sensor that reliably provides detailed sound field information within the audible range, crucially capturing the sound's direction of propagation. It's designed with three orthogonal Microflown sensors and a precision sound pressure microphone. This combination measures the three-dimensional components of the acoustic field at a single point, specifically the acoustic particle velocity vector and the scalar sound pressure. The USP Regular stands as an effective solution for various measurement requirements, offering valuable insights into the location of sound sources and acoustic propagation paths. Ideal for engineers seeking simple yet powerful tools, our acoustic vector sensor is highly effective for a range of applications.

Features

  • Broad Band | 20Hz -10kHz
  • Compact design
  • High spatial resolution
  • 3D Acoustic Vector Sensor

Applications

  • 3D Sound Source localization
  • 3D Sound field visualization
  • 3D Sound Intensity
  • 3D Particle Velocity

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Turning the possibility of 3D Sound field visualization a reality

The USP probe is a unique 3D acoustic vector sensor which, like other PU sound intensity probes, is less influenced by background noise and reflections than traditional microphone-based intensity probes, conferring the ability to measure in-situ under realistic conditions. In a broader sense, this vector sensor allows you to visualize the sound field in three-dimensional space. As the only acoustic probe that can physically measure all the fundamental quantities of a sound field (sound pressure and 3D acoustic particle velocity), any device, machine, or environment, can be characterized and quantified accurately irrespective of the testing conditions for the broad frequency range from 20 Hz to 10000 Hz.

Single 3D probe for a complete acoustic characterization

Our acoustic vector sensor probe allows for an unparalleled level of detail in data gathering. It can measure a vast range of acoustic parameters including 3D particle velocity, 3D sound intensity, sound power, acoustic absorption, material reflection coefficients, and sound scattering. Its application versatility is immense, with successful use in diverse settings such as acoustic testing facilities, reverberant rooms, vehicle interiors, and even outdoor environments. This probe is designed to serve the most comprehensive of acoustic needs across a wide range of scenarios.

Specifications

Sensor performance Sound Pressure | Particle Velocity
Sensitivity 70 mV/Pa | 17 V/(m/s)
Frequency Range (±1 dB) 40 - 8000 Hz
Frequency Range (±2 dB) 20 - 10000 Hz
Maximum Level 112 dB | 130 dB
Noise floor (20 Hz - 2 kHz) 21 dB(A) | 32 dB(A)
Noise floor (20 Hz - 10 kHz) 27 dB(A) | 48 dB(A)
Environmental Sound Pressure | Particle Velocity
Temperature range -20 to 63 °C
Temperature Coefficient 0.067 dB/°C | 0.006 dB/°C
Influence of Humidity (30 - 90%) 0.05 dB/%RH | 0.06 dB/%RH
Static Pressure Coefficient < 0.5 dB/kPA
Maximum airflow 1.5 m/s
Physical dimensions
Connector type 7 pin LEMO
Weight 42 g
Diameter 12.7 mm
Length 128 mm
ACOUSTIC SENSORS & TESTING SOLUTIONS