Room Acoustics
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Material Test/Cure Rooms
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Our walk-in Materials Test and Cure Rooms offer reliable, efficient environmental controls for a variety of applications including shelf-life testing and storage, ceramic and concrete wet and dry cure regimens (including ASTM-compliant units), thermal shock chambers, general, medical and packaging materials.
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Acoustic Modem Option for Control Module
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Gavia AUVs can be fitted with the Teledyne Benthos ATM-900 Acoustic Modem. The ATM-900 Series Acoustic Telemetry Modem is the most advanced, multipath and noise tolerant, modem available. They are designed to meet both the high data rate requirements of commercial users, and the higher reliability, lower data rate requirements of the military. The modems employ two modulation techniques: phase shift keying (PSK), which provides the highest bit rate, and multiple frequency shift keying (MFSK), which provides reliability in a multipath environment, or when the modems are required to operate in a low signal-to-noise (SNR) environment. The ATM-910 Series can transmit data using PSK modulation for reception by a Gavia Modem Deckbox, but receives data using MFSK modulation only. MFSK modulation is a spread spectrum modulation process that transmits multiple tones simultaneously.
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Acoustic Emission Transducer
GT301
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Acoustic emission transducer GT301 converts acoustic signal into electrical signal, parameters of which are used for acoustic emission source evaluation.
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Clear Room Logger Transmitter
HD50CR
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The HD50CR is the ideal solution for monitoring of differential pressure, temperature and humidity in Clean Room applications.
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Burn-in Room and Aging Test Chamber
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Isolated type of burn-in room features: ●Separate the product and loading area, easy to control temperature and maintain. ●Temp. range: 40-70ºC±3/±5ºC, ●Temp. constancy: ±0.5ºC ●Uniformity: ±3ºC ●Test frame materials: painted stainless steel or a combination of forming aluminum ●Insulation: with PU foam ( doors with double glazing ) insulation, so that the internal temperature is not subject to external factors, to achieve power saving effect ●Product hierarchy placement, Selection of layer height in accordance with the requirements, convenient access ●Computer monitoring system is optional. ●Noise level:≤75dB Application Suitable for all kinds of electronic products, especially for products with heating characteristics Product and loading area should be separated Large-scale production
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Environmental Rooms
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Darwin Chambers Company designs, manufactures, installs, and services custom chambers of all types and sizes, for a wide array of applications, including: GMP Shelf-Life Testing and Storage, Dry/Moist and Cold Storage for Seed and Agricultural Products, Nutritional Supplements, General Materials Testing, Mold and Fungal Incubation, Photography Storage, Concrete Curing, Roll-In Bottle Incubation Chambers and Compliant Vivariums (NIH, ALAAC, OLAW, USDA, etc.), more. We have pioneered a number of innovative, resource-saving technologies, from thermoelectric and liquid-circuited cooling systems to ultrasonic humidification.
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Freezer Rooms
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Our walk-in cold rooms offer reliable, efficient environmental controls for a variety of applications; including: GMP Storage and Cold Storage for Seed and Agricultural Products, Nutritional Supplements, and more. Our cold rooms are typically supplied with desiccant or refrigeration based dehumidification in order to maintain a low dew-point and prevent ice accumulation on both product and equipment surfaces. Typical temperatures for our cold rooms range from of 0o C to 10o C.
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Archival Storage Rooms
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Darwin Chambers Company’s NFPA, GSA, and NARA Directive 1571-compliant Archival Storage Chambers are engineered to provide maximum value, efficiency and conformance with all applicable standards and codes. Archival chambers provide environmental controls for storing records and materials (including paper documents and items with high fibrous content, various films, microfiche, and photographic materials) that require permanent protection for storage and preservation. Our high-performance systems are offered with nearly unlimited operational fail safes, includ- ing full system and control redundancy. In addition to keyed entry, numerous security options are also available, due to the often irreplaceable nature of the materials to be stored and preserved in this type of chamber. Our chambers are engineered to accommodate the loads and unique requirements of the specific materials to be stored, with industry-leading control and uniformity of both temperature and humidity variables. Design considerations include both functional and operational efficiencies and reliability, the safety and comfort of operating personnel, and the ongoing protection of the archived materials from fire, water, light degradation, pests, mold and natural contaminants, pollutants and other man- made threats.
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Acoustic Emission Preamplifier
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The Acoustic Emission Preamplifier is a instrument designed specifically for use with acoustic emission sensors, which is used to boost the signals and filter out any noise or interference. With its advanced technical features and robust design, the QingCheng Acoustic Emission Preamplifier is the perfect choice for professionals seeking a high-performance acoustic testing solution.
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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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Free Room Temperature Bore Systems
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The cryomagnetic system contains the cryogen free room temperature bore superconducting magnet, cryostat, cryocooler and compressor, temperature monitor unit (nominally Lakeshore) and HTS current leads. The cooling for the magnet and cryostat housing is provided by a standard cryocooler with a base temperature of 4K. The magnet is designed to operate safely at the guaranteed field without quenching.
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Acoustic Calibrator
CAL150
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The Larson Davis CAL150 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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Acoustic Emission Instruments
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The Acoustic Emission NDT technique is based on the detection and conversion of high frequency elastic waves into electrical signals.
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Scanning Acoustic Microscope
Pulse2
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This industry-leading scanning acoustic microscope provides a universal inspection tool for packaged semiconductor development, production and failure analysis. With the ability to detect air defects as thin 0.05 micron and spatially resolve defects down to 10 microns, the ECHO is perfect for bump detection, stacked die (3D packaging) inspection, complex flip chip inspection and more traditional plastic packages.
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TOFD Method of Acoustic Control
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Time-of-flight diffraction method of acoustic control is a software and hardware suite used for material strength testing based on TOFD method of acoustic control.
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Acoustic Emission Crack Diagnosis
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Detect abnormality by diagnosing machine condition in real time
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ACoustic COllaborative Protection System
ACCOPS
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Both manned and unmanned military vehicles face numerous kinds of direct fire, varying from incoming Small Arms Fire up to high kinetic armor piercing rounds. Especially when under armor, or unmanned, maintaining situational awareness is key.
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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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Noise Control And Acoustical Consulting Services
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Our acoustical consultants use the latest and most advanced noise prediction and modeling software, precision sound measurement equipment and detailed acoustical analysis that enable us to help our clients achieve their project's noise requirements and goals. Contact us before your noise challenges become noise pollution problems.
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Acoustic Measurement Systems
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Even AuSIM's audio simulation is only as good as the model parameters within the simulation. For AuSIM, deriving optimal model parameters begins with studying the acoustic world around us. The AuSIM3Dtm display systems synthesize a virtual aural environment from parameters based on the physical world. But the same techniques can be applied to reverse the process and extract parameters from the physical world to use for later synthesis.
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TERAHERTZ ROOM TEMPERATURE DETECTORS FROM 37.5 GHZ To 996 THz
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Insight Product Company offers Golay cells that detect electro-magnetic waves at terahertz frequency ranges from 0.0375 to 996 THz.
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Acoustic Imaging Cameras
Si1 and Si2 Camera series
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Helps you significantly lower costs associated with mechanical bearing issues and partial discharge on electrical equipment. It also enables you to drastically reduce leaks in your facilities, cutting down expenses related to compressed air and gas leaks.
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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 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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Manikins for realistic simulation of the acoustic properties of a human
Head & Torso Simulators
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If you need to carry out realistic in-situ measurements of headphones, telephones or hearing aids, you need a Head and Torso Simulator such as the B&K ‘HATS’ – Type 4128D or GRAS’ Kemar to complete your test setup. These manikins have built-in ear and mouth simulators that provide a realistic reproduction of the acoustic properties of an average adult human head and torso. They are commonly used for tests on telephone handsets, headsets, audio conference devices, microphones, headphones, hearing aids and hearing protectors. Please contact your sales engineer or email sales@listeninc.com for more information.
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Acoustic Noise
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American Environments Co., Inc.
A Test Specimens can be evaluated in two different modes in reference to acoustic noise: The Test Specimen's response to acoustic noise and the Test Specimen's generation of acoustic noise.
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Cannabis Drying and Curing Rooms
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Darwin Chambers provides cannabis drying rooms designed for the replicable drying of cannabis. The drying process is critical to maintaining proper levels of cannabinoids and preventing mold and mildew.
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Plant Growth Rooms
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Darwin Chambers Company provides Plant Growth Rooms that are engineered for maximum value, sustainability, and conformance with USDA-APHIS standards, as applicable. Our plant growth rooms are modular, reconfigurable, and are offered both as standard and as entirely customizable systems—from panel configuration to available surface finishes, to nearly unlimited lighting and humidification/water distribution options, to movable, adjustable storage and racking/shelving options—we can work to meet each researcher’s unique and specific requirements. Temperatures available down to 10° C and go up to 40° C. In addition to our standard T8 and T5 lighting options, we have teamed up with LumiGrow, the leading provider of smart horticultural lighting solutions. Both reach-ins and rooms can incorporate the LumiGrow lamps.
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Acoustic Scintillation Flow Meter
ASFM
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Assess/optimize existing turbine operating efficiencyAccept new or upgraded turbinesVerify minimum flow requirements
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Acoustic Emission Sensors
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Acoustic wave (acoustic emission) sensors are the ceramic piezoelectric transducers converting the mechanical elastic acoustic waves generated in the material (e.g. elastic waves occur when a material cracks, wears, deforms, or corrodes) to electrical signals. The electrical signals are then amplified and filtered by a preamplifier and then transmitted to a special acoustic emission acquisition instrument for further data processing and analysis.
