Sound Power

ACCURATE & RELIABLE SOUND POWER MEASUREMENT KITS

EQUIPPED WITH STATE-OF-THE-ART MICROPHONE/PREAMPLIFIER SETS AND ADVANCED DATA ACQUISITION EQUIPMENT COMPLYING WITH ISO3744 AND ISO3745

PLACID Hemisphere

PLACID HM01/02

Sound power hemisphere microphone array for measurement

PLACID PMP21-1

Measurement microphone set

Placid SoundExpress

Sound Power module software

4 channel noise vibration daq PLACID PQ421

PLACID PQ421 DAQ

4 channel signal conditioner

Equipped with state-of-the-art sound level meters, precision microphones, and advanced signal analyzers, we ensure accurate and reliable measurements in any environment.

Our expert team employs rigorous calibration procedures and adheres to International standards ISO 3744 & ISO 3745, guaranteeing the highest level of accuracy. Whether you require compliance assessments with regulatory standards or detailed noise control evaluations, our solutions provide detailed reports on sound power levels across frequencies and conditions.
Trust us to deliver precise measurements that empower your decision- making and ensure optimal acoustic performance.

Contact us today for a demo of our sound power measurement services that can benefit your operations

Sound Power Hemisphere microphone array for measurements ISO3744, ISO3745

Hemisphere for sound power

Sound power measurement iso3745

PLACID HM01 / HM02 Hemisphere microphone array for sound measurements
Frequency range: 3.15 Hz to 20 kHz (depending on microphones used)
Dynamic range: 17 dB to 139 dB (depending on microphones used)
Nominal Sensitivity: 50 mV/Pa (depending on microphones used)
Measures incl. feet: various width, 1 meter radius, 2 meter radius, complying with ISO3744 or ISO3745 recommendations (6 or 10 legs)
# of Microphones: 10 or 20, 1/2″ or 1/4″ microphones with preamplifiers

Customization of dimensions to fit your chamber is possible.

PLACID HM01 / HM02, the hemisphere will hold either 10 or 20 microphones according to the relevant used standards. Easy assembly and packing, strong, durable, stable, accurate.

A typical application for a hemisphere microphone array is the measurement of noise sources, specifically sound power in a (semi)-anechoic room.

PLACID Hemisphere
  • Input Channels 4-Chaneel BNC interface
  • Output Channels 2-Chaneel BNC interface
  • Gain x1, x10, x100 switches
  • ICP Current (mA) 4 mA
  • Sampling Rate (Hz) 48 kHz
  • Noise Floor 29 dB(A)
  • Dynamic Range (dB) 112 dB, A- weighted
  • Input Channels: 16-Channel BNC interface
  • PC Connection Method: USB
  • Programable Gain:  x1, x10, x100
  • IEPE Current: 4 mA
  • Sampling Rate (Hz): (1-100) kHz
  • Dynamic Range (dB): 112 dB

Frequency Range: 20Hz to 20kHz
Dynamic Range: 16 to 150 dB(A)
Nominal Sensitivity: 40mV/Pa

The PMV21 microphone is optimized for free-field measurements.
As all PLACID microphones, the PMV21 comes with an individually calibration certificate.

Frequency Range: 10Hz to 20kHz
Dynamic Range: 36 to 160 dB(A)
Nominal Sensitivity: 4mV/Pa

The PLACID PSMP47 is a high precision condensor surface microphone manufactured in compliance with the4 IEC 61094-1 requirements and classified as a class 1 microphone.

The PLACID PNV21 1⁄2” Preamplifier is a robust preamplifier designed to be used for acoustic measurements with condenser microphones.

The self-noise is very low, it has a wide dynamic range and frequency response.

  • Frequency range: 5.0 Hz to 100 kHz
  • Noise: <2.0 μV
  • Usage: General purpose

The PLACID PNP41 1/4” Preamplifier is a robust preamplifier designed to be used for acoustic measurements with condenser microphones. The self-noise is very low, it has a wide dynamic range and frequency response.

  • Frequency range: 5.0 Hz to 100 kHz
  • Noise: <2.5 μV
  • Usage: General purpose