Back to Products
PLACID PQ441-C 4-Channel Signal Conditioner

PLACID PQ441-C 4-Channel Signal Conditioner

PQ441-C

Categories: daq-data-acquisition
PLACID Instruments
1 Documents

The PLACID PQ441-C is a four-channel signal conditioner and data acquisition unit for sound and vibration measurement. A signal conditioner supplies sensor power, sets gain and filters the signal before digitisation, which is what allows microphones, accelerometers and plain voltage sources to be mi...

Companion Software Included

Works seamlessly with PQ Analyst — advanced software for real-time FFT, spectrogram, octave analysis, and sound level measurement.

View Software
Datasheets & Documents(1)

In-Depth Overview

The PLACID PQ441-C is a four-channel signal conditioner and data acquisition unit for sound and vibration measurement. A signal conditioner supplies sensor power, sets gain and filters the signal before digitisation, which is what allows microphones, accelerometers and plain voltage sources to be mixed on one measurement without each needing its own front end. Four channels is the practical minimum for intensity probes, impedance tube work to ISO 10534-2 and small modal setups. The PQ441-C runs with PLACID PQ Analyst software for real-time FFT, spectrogram and octave analysis with CSV export. Full specifications are provided with the quotation. Placid Asia is the authorized distributor for Thailand and ASEAN.

Recommended Companion Software: PQ Analyst

Pair this DAQ device with PLACID PQ Analyst — an integrated software platform for real-time acoustic and vibration signal acquisition, visualization, and analysis. Together they form a complete measurement and analysis chain for R&D, university research, and industrial testing.

  • Real-time FFT spectrum analysis up to the full bandwidth of your DAQ
  • Spectrogram (waterfall) display for time-frequency visualization
  • 1/1 and 1/3 octave band analysis per IEC 61260
  • Sound Level Meter module (Leq, Lmax, Lmin, LN) per IEC 61672
  • Data export to CSV for post-processing in MATLAB or Python
  • Compatible with PQ401-A, PQ401-B, PQ441-C, and PQ1601
View PQ Analyst →

Interested in this product?

Get more information about pricing, availability, and technical support

Related Products

View All →
acoustic-software
PDF

PQ-ANALYST

PLACID PQ Analyst Sound and Vibration Tool

PLACID PQ Analyst is acquisition and analysis software for sound and vibration measurement. It provides real-time FFT, spectrogram display and octave analysis, together with a sound level meter module offering A, C and Linear frequency weighting to IEC. Results export to CSV for reporting and further processing. PQ Analyst drives the PLACID PQ1601 and PQ401 acquisition hardware, turning a laptop and a measurement microphone or accelerometer into a complete analysis chain. Placid Asia is the authorized distributor for Thailand and ASEAN.

daq-data-acquisition
PDF

PQ1601

PLACID PQ1601 16-Channel USB DAQ

The PLACID PQ1601 is a 16-channel BNC data acquisition unit connected over USB. Selectable gain of x1, x10 and x100 and a 4 mA IEPE supply on every channel allow microphones, accelerometers and plain voltage signals to be mixed in one measurement. Sampling runs from 1 to 100 kHz with 112 dB of dynamic range. It is the acquisition front end for the PLACID PQ Analyst software and suits multi-point sound and vibration measurement, sound power arrays and laboratory work. Placid Asia is the authorized distributor for Thailand and ASEAN.

daq-data-acquisition
PDF

PQ401-AB

PLACID PQ401-A/B Four-Channel Data Acquisition Device | 24-bit DAQ with SDK for MATLAB, C++, C#, Python

The PQ401-A/B is a four-channel data collection device with a high sampling rate and compact size. It supports both IEPE and voltage input methods, adopts the mature TCP/IP protocol, and comes with a built-in SD card. Paired with PQ Analyst software for efficient data acquisition and analysis. Open SDK for C, C#, MATLAB, Python — ideal for university research labs, PhD thesis work, and R&D departments. Two variants: PQ401-A (128kHz) and PQ401-B (196kHz). 24-bit resolution, 114 dB dynamic range, 520g portable design.

daq-data-acquisition

MP-VIBPILOT

m+p VibPilot 4/8-Channel DAQ Front-End for Vibration & Acoustic Testing

The m+p VibPilot 4/8-Channel DAQ Front-End is a professional-grade, compact data acquisition system designed for precise vibration and acoustic measurements. Manufactured by m+p international, a leader in dynamic signal analysis equipment, this front-end unit offers robust 24-bit resolution with a high sampling rate of 204.8 kHz per channel. It enables alias-protected measurements up to 80 kHz and delivers a spurious-free dynamic range exceeding 120 dB, ensuring accurate and reliable data capture across multiple engineering applications. Equipped with IEPE sensor supply and TEDS support, the VibPilot system seamlessly interfaces with a wide variety of accelerometers, microphones, and other sensor types. It features 4 or 8 analog input channels, two 24-bit source output channels, two tachometer inputs, and eight digital inputs and outputs, allowing comprehensive signal collection and control in dynamic testing environments. Connectivity is through Ethernet, facilitating quick data transfer and integration with PC-based analysis software including m+p VibControl for shaker control, m+p Analyzer for dynamic signal analysis, and m+p Coda for real-time test monitoring. The unit supports both AC and DC power supplies, including vehicle batteries and an optional internal battery, making it ideal for in-field measurements or laboratory setups. Its rugged, portable design suits demanding industrial, automotive NVH (Noise, Vibration, Harshness) testing, aerospace component analysis, manufacturing quality control, building acoustics evaluation, and environmental noise monitoring tests. The VibPilot DAQ front-end complies with relevant international standards such as IEC 61672 for sound level meters, ISO 10816 for vibration severity, and ANSI guidelines for dynamic measurements ensuring data integrity and industry acceptance. Targeted at engineers, researchers, consultants, and testing laboratories, the m+p VibPilot is perfect for anyone requiring high-fidelity, multi-channel data acquisition for vibration and acoustic applications. Placid Asia is the authorized distributor and technical support provider for m+p international products in Thailand and the ASEAN region. Request a quote today to upgrade your vibration and noise measurement capabilities with the m+p VibPilot 4/8-Channel front-end DAQ system. Experience professional, reliable, and precise data acquisition tailored for advanced acoustic and dynamic testing requirements.

View Details