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Measurement Microphones
measure acoustic frequency, time and noise levels.
See Also: Microphones, Hydrophones, Mic
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Power modules
G.R.A.S. Sound & Vibration A/S
It provides polarization voltage for the transducer, ensuring that the microphone gets the charging voltage it needs.It provides supply voltage for the microphone preamplifier. The preamplifier acts as a unity gain impedance converter. It provides a certain amount of line drive capability by providing a low output impedance and output current, making it possible to transmit the signal from the transducer to the Power Module without significant degradation.A power module can provide amplification or attenuation to the signal, thus making it possible to fine tune the measurement chain to the signals being measured and the hardware being used.Selectable filters make it possible to exclude unwanted noise from the measurement, e.g. wind induced noise from outdoor measurements.Overload detection makes it possible to validate the measurements and is a useful tool in monitoring setups.When a Power Module with gain is used, you can use longer cables because of the power module's ability to deliver current.A Power module introduces electrical isolation
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The AudioTools Platform
AudioTools is the heart of the most comprehensive audio and acoustics test & measurement platform available today. With AudioTools, you can perform quick ad hoc measurements using only the iPhone in your pocket, or you can plug a Type 1 microphone into iAudioInterface2 for a full-featured professional test & measurement platform that meets ANSI and ISO specifications.
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PCI-4461, 204.8 kS/s, 118 dB, 3.4 Hz AC/DC Coupled, 2-Input/2-Output Sound and Vibration Device
779307-01
The PCI‑4461 is a high-accuracy data acquisition module specifically designed for sound and vibration applications. It provides simultaneous two-channel dynamic signal generation and simultaneous two-channel dynamic signal acquisition with six gain settings to configure the input range. The PCI‑4461 also includes software-configurable AC/DC coupling and integrated electronic piezoelectric (IEPE) conditioning to ensure precision measurements with microphones, accelerometers, and other transducers that have very large dynamic ranges. Common applications include audio test; automotive test; noise, vibration, and harshness (NVH) analysis; and machine condition monitoring.
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PXIe-4497, 204.8 kS/s, 114 dB, 2 Gains, AC/DC-Coupled, 16-Analog Input PXI Sound and Vibration Module
781369-01
204.8 kS/s, 114 dB, 2 Gains, AC/DC-Coupled, 16-Analog Input PXI Sound and Vibration Module - The PXIe‑4497 is designed for high‑channel‑count sound and vibration applications. With 24-bit analog inputs and IEPE constant current signal conditioning, the PXIe‑4497 is ideal for making precision measurements with microphones, accelerometers, and other transducers that have very large dynamic ranges. The PXIe‑4497 delivers simultaneous sample on all channels. In addition, the module includes built-in antialiasing filters that automatically adjust to your sample rate, software-selectable input gain, and TEDS smart sensor support for error-free setup. Common applications include noise, vibration, and harshness (NVH) analysis; large microphone arrays; and dynamic structural test.
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Special microphones
G.R.A.S. Sound & Vibration A/S
Special microphones are often required for applications where there are particular requirements regarding the methods of measurements and configurations
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USB-4431, 102.4 kS/s, 100 dB, 0.8 Hz AC/DC Coupled, 4-Input/1-Output Sound and Vibration Device
780164-01
The USB-4431 is designed for sound and vibration measurements. Input channels incorporate integrated electronic piezoelectric (IEPE) signal conditioning for accelerometers and microphones. The four USB-4431 input channels simultaneously digitize input signals. The analog output (AO) channel is ideal for stimulus-response tests and can be synchronized to the AI channels.
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Precision Sound Level Calibrator
CAL200
The Larson Davis CAL200 Sound Level Calibrator is a battery operated precision microphone calibrator used for the calibration of sound level meters and other sound measurement equipment.
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Sound Level Meter
831-LOWN
Easily make low noise measurements to 6.5 dB A-weighted using the Model 831-LOWN sound level meter paired with the 378A04 low noise microphone and preamplifier. Due to the innovative design of the 378A04 which uses a prepolarized microphone and ICP (constant current) interface, the combination produces a highly portable system that is battery powered and intuitive to use for measuring low noise levels.
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everyday measurement microphone kit
cm-120
The mic bag is a little wonder. On one side are two pockets for microphones and on the other are pockets for mic stand clips, windscreens and other necessities. The bag is fully padded to protect its contents and includes both a long zipper for completely opening the bag as well as a convenient carrying handle. The CM-120 ships with an universal mic clip and cool blue foam windscreen in its interior pockets. This is a quality package at a great price.
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Handheld Audio Analyzer
PAA3X
The PAA3X is a highly accurate handheld audio analyzer that gives sound engineers a rich array of sound analysis tools. The system features both 61-band and 31-band real time spectrum analysis, RT60 reverb time measurement, SPL and line meter, internal signal generator, EQ setting program, microphone calibration and speaker phase checking abilities. All functions and menus can be accessed through a central jog dial, leaving your other hand free to adjust audio settings. The large color LCD screen has an adjustable brightness to help you see in a dark or well-lit environments alike. The PAA3X also features a "screen capture" function allowing users to save images of the screen to an SD card in BMP format for later reference. The detachable precision microphone can be placed remotely via the included 5-meter extension cable, offering flexible on-site operation management. With all this plus a built-in rechargeable lithium-ion battery, the PAA3X is a must-have multifunctional tool for all serious audio engineers.
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PXIe-4499, 204.8 kS/s, 114 dB, 4 Gains, AC/DC-Coupled, 16-Input PXI Sound and Vibration Module
781370-01
204.8 kS/s, 114 dB, 4 Gains, AC/DC-Coupled, 16-Input PXI Sound and Vibration Module - The PXIe‑4499 is designed for high‑channel‑count sound and vibration applications. With 24-bit analog inputs and IEPE constant current signal conditioning, the PXIe‑4499 is ideal for making precision measurements with microphones, accelerometers, and other transducers that have very large dynamic ranges. The PXIe‑4499 delivers simultaneous sample on all channels. In addition, the PXIe‑4499 includes built-in antialiasing filters that automatically adjust to your sample rate, software-selectable input gains, and TEDS smart sensor support for error-free setup. Common applications include noise, vibration, and harshness (NVH) analysis; large microphone arrays; and dynamic structural test.
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Microphone Arrays
One of the most important parts of an Acoustic Camera is the microphone array. It determines the spatial distribution of the acoustic microphones and therefore measurement performance of the whole system. In order to achieve the maximum possible performance in any given application, we offer a wide variety of microphone arrays. No matter if the measurement is beamforming, intensity or holography ... we have the right microphone array. For special applications we can design and build custom made microphone arrays according to the requirements of the application.
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Acoustic Calibrator
CAL250
The Larson Davis Model CAL250 is a battery operated precision microphone calibrator used for the calibration of sound level meters and other sound measurement equipment.
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Microphones
All these measurement microphones have a XLR connector and require a phantom power. They can be connected to specially equipped soundcards or pre-amplifiers, only.
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Test And Measurement System
TM400
The TM400 system was designed to provide the ideal link between calibrated test microphones and measurement equipment such as SIM®, SIA SMAART Live®, TEF® or other systems. By using a radio link, long cables can be eliminated thus saving time and providing opportunities for additional measurements to increase accuracy. The microphone can even be moved around in the venue while the audience is present – something that is impossible with a cabled measurement microphone.
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Measurement Microphones
All microphones are omni-directional and 48V phantom powered. The XL2 Analyzer microphones include an electronic data sheet. The Automated Sensor Detection (ASD) of the XL2 automatically reads this data sheet, and recognizes the microphone model, sensitivity and calibration data. This ensures accurate measurement results.
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Mobile Cable Fault Location System
BAUR Syscompact 4000
BAUR Prüf- und Messtechnik GmbH
Fault location with Syscompact 4000. The Syscompact 4000 is a compact, fully enclosed fault location system for pre-location and pinpointing of high-resistive, low-resistive and intermittent faults on low- and medium-voltage cables. Easy operation and the use of latest fault location methods enable fast and safe fault location.* Location of low-resistive, high-resistive and intermittent cable faults* Efficient cable fault pre-location methods* Pinpointing according to the noise location method or acoustic propagation time measurement* (with Universal Locator and ground microphone)* Sheath fault location according to the step voltage method (with Universal Locator and two measurement probes)* Easy to handle
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Specialty Test And Measurement Microphones
When acoustic measurements need to be made in demanding environments and applications, a variety of PCB® specialty microphones are available.
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Audio Analyser
ATB PC Pro
The ATB PC Pro Measuring system is a professional Audio Analyser. The Windows program is combined with the computer’s soundcard, the measurement microphone, the Test-Box and the DVD (CD) for the signals forms an exact and extensive measurement system. The applications for the ATB PC Pro are the speaker development, room acoustic optimise, the installation of car sound systems, the setting of Surround reproduction systems and the noise analyser.
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Sound Level Meters
A sound level meter is used for acoustic (sound that travels through air) measurements. It is commonly a hand-held instrument with a microphone. The diaphrahm of the microphone responds to changes in air pressure caused by sound waves.
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Amplifier, Switch and Test Box
CLIOQC Model V
The QCBOX Model 5 is a non-conventional unit designed to fulfil actual and future needs of an electro-acoustical analyzer like the CLIO system. It is USB linked to a PC and can be configured, with dedicated software controls, to assist frequency response and impedance measurements or to perform DC measurements. Using it for frequency response measurements acts as 50W power amplifier to drive the speaker or network under test while routing one-of-four inputs to the analyzer as well the current sensing output. The four inputs are able to provide a phantom power supply both for Audiomatica or general purpose microphones (0-24 V range, software controlled). Impedance measurements can be done either switching the D.U.T.’s load across the analyzer’s input or using a dedicated output, ISENSE, thus allowing impedance measurements in constant voltage mode as well voice coil current distortion analysis. An internal ADC measures the DC current into the voice coil. Thanks to an internal software controlled voltage generator the speaker can be driven with a superimposed DC voltage (±20V), allowing for measurements of large signal parameters. Two ADC converters with a ±2.5 V and ±5 V are available at inputs 3 and 4 to measure the displacement with a laser sensor or any other DC signal. A dedicated digital input handles an external foot pedal switch (or TTL signal) to be connected and triggers QC operations. A 6 bit output – 5 bit input TTL digital port is available to interface the QCBOX and driving software with external hardware (like turntables for example).The QCBOX Model 5 finds use both in laboratory for R&D applications and in production lines setups.
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PCI-4462, 204.8 kS/s, 118 dB, 3.4 Hz AC/DC Coupled, 4-Input Sound and Vibration Device
779309-01
The PCI‑4462 is a high-accuracy data acquisition module specifically designed for sound and vibration applications. It provides simultaneous four-channel dynamic signal acquisition with six programmable gain settings for making high-accuracy, frequency-domain measurements. The PCI‑4462 also includes software-configurable AC/DC coupling and integrated electronic piezoelectric (IEPE) conditioning to ensure precision measurements with microphones, accelerometers, and other transducers that have very large dynamic ranges. Common applications for dynamic signal acquisition devices include audio test; automotive test; noise, vibration, and harshness (NVH) analysis; and machine condition monitoring.
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calibrated measurement microphone kit
cm-125
The CM-125 consists of the MA-20 mic carrying bag, mounting clip, and windscreen plus the CM-25 individually calibrated everyday measurement microphone. The CM-25 is the CM-20 " back electret, omni-directional microphone individually calibrated with a provided file in FRD format with one-third octave measurement points from 5 Hz to 25 kHz. The file comes on a serialized USB memory stick for convenience.
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PC based USB Real Time Analyzer
1) Measurement microphone and its accessories (a windshield and a microphone clip)2) XLR-to-USB Converter3) USB cable (1.5 m) 4) CD (contains the copy-protected Multi-Instrument Software) 5) USB hardkey (contains a Multi-Instrument Standard License)6) Audio Test CD (contains a list of audio test tones and noises) (AudioTestCD.zip or AudioTestCD.rar)7) 1/8” TRS cable (1.8m) 8) Black Soft Pouch Case 9) Individual Sound Level Calibration Data 10) Individual Microphone Calibration Data (only provided in RTA-168B)11) A small microphone stand
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Electroacoustic Test
CRYSOUND offers comprehensive and expert electroacoustic measurement solutions for a broad spectrum of consumer electronics, including headphones, microphones, and speakers. These solutions are characterized by powerful functionality and robust stability.
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Measurement Microphone System
MK224SYS
The MK224SYS Type 1 measurement microphone system offers a cost effective option to acoustic measurements. Perfomance: 8 Hz to 18 kHz response, 50 mV/Pa sensitivity and a "A" weighted noise floor less than 14 dBA.
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Sound Power Solution
The Sound Power Solution is part of the family of solutions proposed by OROS for Acoustic applications. This Solution allows to measure Sound Power based on the measurement of sound pressure levels at microphone positions around a source under test. Thus, the Sound Power Solution is complementary of the Sound Intensity Solution that is based on the measurement of the sound intensity as recommended by ISO 9614. Using the OROS Solution, based on a task dedicated interface that guides the user step by step, Sound Power is measured in an easy and efficient way.?
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Outdoor Microphones
Is a measurement microphone for all-weather conditions designed for use with sound level meters.
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PXI Sound and Vibration Module
PXI Sound and Vibration Modules are designed specifically for applications like audio test and measurement, noise and vibration diagnostics, machine condition monitoring, automotive test, noise, vibration, and harshness(NVH) analysis, and laboratory research. They provide software-configurable AC/DC coupling, antialiasing filters, and IEPE conditioning to ensure precision measurements with microphones, accelerometers, and other transducers with large dynamic ranges.
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Production Line Acoustic Test Chamber
PLATC
The Production Line Acoustic Test Chamber from GRAS is designed for quick and qualified acoustic test of cell phones, tablet PCs, Bluetooth speaker systems etc., including frequency response, THD, Rub & Buzz and microphone test using optional sound source. The chamber has a number of connections for injecting test and control signals to the test object (DUT).Benefits include:Repeatable testing and reliable dataEasy open/close for quick and safe change of DUTFlexible test jig for easy adjustment to new DUTFlexible microphone mounting for both front/backside speakers as well as edge-mounted speakersHigh quality, high sensitive 1/4” CCP measurementmicrophone included (G.R.A.S. 46BL)Individually calibrated frequency response** Compared to reference measurement in anechoic room
