Acoustical References
Standard for calibrating sound level meters and sound measuring systems.
See Also: References, Reference Standards, Reference Antennas, Reference Decoders, Reference Jumpers, Reference Sources, Reference Transformers, Reference Transmitters, Frequency References, Solar Reference Cells
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Product
E-Band Signal Analysis Reference Solution
Reference Module
The E-band signal analysis reference solution provides an effective measurement solution for today’s wideband signals as well as emerging communications standards. With the M1971E waveguide harmonic mixer, which provides a 55 to 90 GHz input; Keysight oscilloscopes, which provide excellent signal integrity; and the powerful 89600 VSA software, you have a high-quality wideband measurement solution. A simple user interface also provides integrated mixer setup, correction and LO optimization, allowing for accurate measurements.
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AC Reference Modules
Reference Module
NAI offers a variety of AC reference modules that provide a drive capability to 5 VA. The units are transformer-isolated and operate over a frequency range from 47 Hz to 10 kHz. These modules are specifically designed for rugged defense, commercial aerospace, and industrial applications.
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Acoustic Calibrators
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When you're ready to take noise measurements, it's strongly recommended that you perform a field calibration using an Acoustic Calibrator. You should calibrate your sound meter before you start to measure, and then once you've finished you should perform a reference check against the calibrator and make note of any drift that has occured. You can find out more about performing Field Calibrators by reading this post and watching a short video.
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Product
Acoustic Calibration
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Trescal provides full Acoustic Calibration services that are accredited and/or certified in accordance with ISO/IEC 17025. Acoustic Calibration services can be delivered at your site or at our lab. Accreditations for our acoustic calibration service guarantees calibration results are traceable to the International Systems of units (SI) through NIST or NRC.
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Product
Acoustics Analysis
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The sounds a product makes directly impact on user experiences. Sounds create strong emotions — positively or negatively — that reinforce brand identity. The difficulty of predicting acoustic results means that a single engineering mistake can prove costly to the final product, making Ansys Acoustics Analysis a powerful solution to ensure optimal acoustics and a successful end product.
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Product
Intelligent Reference
TM-4D
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The Intelligent Reference/TM-4D™ breaks new ground for time and frequency references. For the first time, it is possible to generate and distribute both analog and digital signals to multiple instruments and locations with just one product that fits in a single rack space. The TM-4D is three instruments in one: an Intelligent Reference/TM-4™ precise time and frequency reference, a digital signal distribution amplifier and an analog distribution amplifier. And it eliminates the need for multiple boxes.
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Product
Reference Standard
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Beijing GFUVE Electronics Co.,Ltd.
It has been designed for universal laboratory and test applications and is intended for checking and the calibration of reference standards for electrical power and energy.
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Product
Acoustic Emission Transducer
GT200
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Acoustic emission transducer is a key element of non-destructive acoustic emission testing. Transducers GT 200 are used for technical diagnostics by means of passive ultrasound.
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Product
Acoustic Backscatter Sensor
LISST-ABS
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The LISST-ABS is a fixed-point monitoring sensor. It uses a new and novel technique to internally compensate for geometric beam spreading and attenuation, yielding de-attenuated backscatter signal strength. It is held pointing into flow for low drag.
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Product
ACoustic QUantification of IncidenTs
ACQUIT
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In regions with tensions, the cease fires agreed upon along a border line are usually fragile. The global community is often asked to send in observers trying to maintain the peace and to report on violations from both sides. There is a need for well described events in the formal reporting, when, where, what kind of weapon etc.
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Product
Reference Transmitter
81492A
Transmitter
Keysight's 81492A Reference Transmitter is designed to offer excellent eye quality for NRZ and PAM4 signals at baud-rates up to 56 Gbaud and can serve as universal single-mode E/O converter. In addition to the internal lasers at 1310 & 1550 nm, an external optical input for usage with tunable laser sources is available. It is fully integrated into Keysight’s Optical Receiver Stress Test solutions to address test requirements of IEEE 802.3 10,40,100 and 400GBASE optical standards.
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Product
Acoustic Fault Detector
AFL212-AMD
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K&S Engineering and Scientific Ltd
This compact acoustic headset, designed and manufactured by K&S Engineering and Scientific Ltd has been developed with state-of-the-art components to not only to achieve superior performance but also to offer the user an acoustic headset that is smaller than equivalent units currently available on the market. Housed in an IP67 enclosure, the unit, which is used in conjunction with a high voltage surge generator, can easily contend with wet conditions.
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Product
Rubidium Reference Oscillator
VCH-210
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The rubidium reference generator VCH-210 is designed to generate a highly stable reference and clock signal.
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Product
Acoustic Camera
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Is a module based approach to acoustic camera that gives the user both portability and great resolution for a wide range of measurement situations.
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Product
Reference Temperature Sensors
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AMETEK Sensors, Test & Calibration
Our reference sensors can be used as your daily working-reference sensors in laboratory or field calibration applications. A large selection of types are available, including; straight, 90 degree angle, 4 mm or 1/4”. The superior design and specifications combined with a long history of reliability and low drift have made the STS probes the working-standard in many EN/IEC 17025 accredited laboratories worldwide. The DLC sensors are a part of our patented Dynamic Load Compensation system.
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Product
Acoustic Emission Crack Diagnosis
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Detect abnormality by diagnosing machine condition in real time
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Product
Acoustic Noise Generator
ANG-2200
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The ANG-2200 Acoustic Noise Generator creates a perimeter of noise that defeats acoustic leakage eavesdropping devices including wired microphones inside walls, contact microphones, audio transmitters located in AC outlets, and laser/microwave reflections from windows.
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Product
Frequency Reference
E8-X
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The Quartzlock E8-X is a breakthrough in exceptionally low cost, miniature, traceable, calibration-free, off-air frequency & time standards. These references maintain the high frequency & time accuracy required for demanding applications.
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Acoustic Calibrators
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We offer a range of Class 1 and Class 2 acoustic calibrators for the field calibration of any make or model of sound level meters and noise dosimeters.
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Voltage References
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Renesas' wide selection of voltage reference (Vref) circuits offer accurate and stable reference voltages unaffected by external influences such as variation in temperature, input voltage and time.
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Product
Acoustical Generator (STIPA Reference)
TalkBox
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The TalkBox is an acoustic signal generator for speech intelligibility measurements in evacuation and announcement systems, as well as for level alignment of teleconference or other audio systems. It allows you to perform a complete end-to-end evaluation of the speech intelligibility STI from the talker’s microphone to the listener’s ears.
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Product
Acoustic Transducer
RESON TC 1037
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Originally designed for underwater telephone systems, the TC 1037 is a rugged directional transducer ideal for operating at low frequencies.
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Product
Directional Acoustic Transponder (DAT)
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The Benthos Directional Acoustic Transponder (DAT) is anextension to the Teledyne Benthos ATM-900 Series modem, which automatically estimates the azimuthal and vertical arrival angles of a message sent by a remote modem. The system is a modified ultra-short baseline (USBL) which uses a broadband component of a typical modem message to form estimates of arrival angle(s). While conventional USBL devices employ tonal signals, our appropriate processing of wide band signals provides far better combined range and arrival angle estimation, especially at low Signal to Noise Ratio (SNR). Our device offers a clear 360 degree field of view in azimuth, and an approximate vertical coverage spanning + 90º overhead to -50º below horizontal.
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Product
Multi-Modulation Acoustic Telemetry System
MATS 3G
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A single solution for all underwater communication needs, MATS 3G is the underwater acoustic modem that leverages state-of-the-art Digital Signal Processing technology to ensure reliable, long-range communication.
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Product
Micropower Voltage References
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Analog Devices offers a broad line precision micropower voltage references with extremely low quiescent currents (series references) or minimum shunt currents (shunt voltage references). All of our precision voltage references offer excellent initial accuracy and low temperature drift over time and temperature. Our Reference Plus products combine precision voltage references with comparators or amplifiers.
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Product
Attitude Heading Reference System
M&M Modules
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PNI’s M&M modules will self adapt and learn its system and its environment automatically to provide accurate quaternions, heading, pitch and roll. All while using 100 times less power than traditional AHRS modules.
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A Global Standard for Acoustic Absorption Measurements
Alpha Cabin
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The Alpha Cabin has been especially designed for the measurement of acoustic absorption properties of materials and components used for the noise insulation of vehicles. The Alpha Cabin is significantly smaller than normal reverberation rooms and therefore ideally suited to use within limited space capacities. The acoustic absorption of the Alpha Cabin itself is also very low: Thanks to the high level of sound insulation, background noise in the frequency range of interest is kept to a minimum.
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Acoustic Calibration Services - IEC
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Acoustic Calibration Services - IECMake sure you measure correctly! We offer traceable acoustic calibration services according to international IEC and ANSI standards and ensure that your instrument accurately indicates the required measurement parameters. Calibrations are documented, traceable, and digitally signed in cooperation with an accredited calibration laboratory.
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Product
Reference Transmitter
81491A
Transmitter
Keysight's 81491A Reference Transmitter is designed to offer excellent eye quality for NRZ and PAM4 signals at baud-rates up to 32Gbaud and can serve as universal E/O converter. It comes in Multimode (MM) and Single-Mode (SM) flavors and includes internal lasers at 850nm (MM) or 1310&1550nm (SM). External optical input for usage with tunable laser sources is available for SM option. It is fully integrated into Keysight’s Optical Receiver Stress Test solutions to address test requirements of IEEE 802.3 10,40,100 and 400GBASE optical standards.





























