The one dimensional high dB PU probe consists of a Microflown acoustical particle velocity sensor and a miniature sound pressure transducer. The probe enables measurement of sound pressure and acoustic particle velocity directly at one spot.

The high dB PU probe takes over When maximum dB level of the standard PU probe is not sufficient. It has been designed to measure dB levels for both sound pressure and particle veloctity up to 130 dB. The protective metal mesh cap should be kept on the probe at all times.

The high dB PU probe has a maximum threshold of 150 dB SPL and PVL.

Video

The ½-inch high dB scanning probe is a state-of-the-art velocity sensor that is based upon the MEMS Microflown sensor. The sensor has been improved to handle high dB levels and is capable of reaching particle velocity levels up to 170 dB in a broad banded frequency range of 20 Hz - 20 kHz.

The high dB scanning probe can be used for example to measure the accurate output of a monopole sound source.

The high dB scanning probe is delivered with a 2-channel signal conditioner (MFSC-2), necessary cables, calibration report, and a two-year warranty.

Video

The ½-inch scanning probe is a sensor based on the MEMS Microflown sensor.

The Microflown is the only sensor which physically measures the acoustic particle velocity directly. A sound field is described by two complementary acoustic properties: the scalar value 'sound pressure' and the vector value 'particle velocity'. In the acoustic near field, acoustic particle velocity is the dominant acoustic property.

In the near field the acoustic particle velocity and the structural velocity coincide. This makes the scanning probe very suitable for non contact measurements of vibrations. The Scanning Probe is designed to be used very close to the surface and is capable of reaching areas which are difficult to reach.

Measuring acoustic particle velocity in the near field is beneficial also in other cases than non contact vibration. The susceptibility of a Microflown compared to a microphone to background noise and reflections is minus 40dB. There is no need for creating anechoic conditions, so products can be tested for quality control in the production line directly. The scanning probe will not only provide an evaluation of the quality of the products in the end of line control, but also help you localise the source of possible errors.

The scanning probe is available in three orientations, 0, 45 and 90 degrees and is delivered with a 2-channel signal conditioner (MFSC-2), necessary cablews, calibration report, and a two-year warranty.

Video

The USP sensor is a state-of-the-art sensor; the ultimate sound probe.

The three dimensional ½ inch USP match probe consists of a three orthogonally placed Microflown acoustic particle velocity sensors and a sound pressure microphone. The USP match is useful when size matters. The actual sensor configuration without its cap is smaller than 5 × 5 × 5 mm³.

A sound field is described by two complementary acoustic properties: the scalar value 'sound pressure' and the vector value 'particle velocity'. The Microflown is the only sensor which physically measures the acoustic particle velocity directly. The USP match probe is mainly used as an AVS (Acoustic Vector Sensor).

Acoustic vector sensors have come to play an increasingly significant role in this technology with application focus on border control, harbour protection, gunshot localisation, and situation awareness. As a far field measurement technique, the USP measurement generates a vector which points to where a source is located, giving bearing and elevation information.

The sensor can also be used in the near field for 3D sound intensity, energy, power, and acoustic impedance. A benefit of the measurement principle is that measurement can be done in-situ under realistic conditions. The sensors don't need anechoic conditions and can be used within closed cavities such as a car interior. The sensor has no P/I (pressure over intensity) index problems. The susceptibility of a Microflown compared to a microphone to background noise and reflections is minus 40dB.

The USP match is delivered with a 4-channel signal conditioner (MFSC-4), the necessary cables, calibration report, and a two-year warranty.

Specifications

Sensor configuration

• 3 x Microflown Titan sensor element
• 1 x miniature pressure microphone

Physical characteristics

• diameter: 9 mm
• length: 32 mm
• weight: 5 g

Electric properties

• power: supplied by the MFSC-4, 4-channel signal conditioner
• input: provided by a 7-pin lemo cable

Environment

• max. temperature: 60 degrees Celsius

Acoustic properties of the Microflown element

• frequency range: 0.1 Hz - 20 kHz ± 1 dB
• upper sound level: 135 dB
• polar pattern: figure of eight
• directivity: directive

Acoustic properties of the microphone element

• frequency range: 0.1 Hz - 20 kHz ± 1 dB
• upper sound level: 110 dB
• polar pattern: omnidirectional
• directivity: omnidirectional

Video

The USP sensor is a state-of-the-art sensor; the ultimate sound probe.

The three dimensional ½ inch USP mini probe consists of a three orthogonally placed Microflown acoustic particle velocity sensors and a sound pressure microphone. The actual sensor configuration without its cap is smaller than 5 × 5 × 5 mm³.

A sound field is described by two complementary acoustic properties: the scalar value 'sound pressure' and the vector value 'particle velocity'. The Microflown is the only sensor which physically measures the acoustic particle velocity directly. The USP mini probe is mainly used as an AVS (Acoustic Vector Sensor).

Acoustic vector sensors have come to play an increasingly significant role in this technology with application focus on border control, harbour protection, gunshot localisation, and situation awareness. As a far field measurement technique, the USP measurement generates a vector which points to where a source is located, giving bearing and elevation information.

The sensor can also be used in the near field for 3D sound intensity, energy, power, and acoustic impedance. A benefit of the measurement principle is that measurement can be done in-situ under realistic conditions. The sensors don't need anechoic conditions and can be used within closed cavities such as a car interior. The sensor has no P/I (pressure over intensity) index problems. The susceptibility of a Microflown compared to a microphone to background noise and reflections is minus 40dB.

The USP mini is delivered with a 4-channel signal conditioner (MFSC-4), the necessary cables, calibration report, and a two-year warranty.

Specifications

Sensor configuration

• 3 x Microflown Titan sensor element
• 1 x miniature pressure microphone

Physical characteristics

• diameter: ½ inch/12,7 mm
• length: 62 mm
• weight: 30 g

Electric properties

• power: supplied by the MFSC-4, 4-channel signal conditioner
• input: provided by a 7-pin lemo cable

Environment

• max. temperature: 60 degrees Celsius

Acoustic properties of the Microflown element

• frequency range: 0.1 Hz - 20 kHz ± 1 dB
• upper sound level: 135 dB
• polar pattern: figure of eight
• directivity: directive

Acoustic properties of the microphone element

• frequency range: 0.1 Hz - 20 kHz ± 1 dB
• upper sound level: 110 dB
• polar pattern: omnidirectional
• directivity: omnidirectional

Video