Showing results: 481 - 495 of 1963 items found.
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Junction Measurement and Analysis -
Materials Development Corporation
A comprehensive set of analyses for junction diode or Schottky barriers begins with C-V data gathering that adjusts the voltage step to the slope of the C-V characteristics. This assures an optimum set of C-Vdata whether the voltage range is small or large. Doping profile and resistivity profile are both available at the touch of a key. Plots of 1/C2 - V or Log(C) - Log (V+ phi) show doping uniformity and doping slope factor. Exclusive recalculation options allow adjustment of stray capacitance and area to facilitate calibration using a standard reference wafer of known doping or resistivity.
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Parasoft Corp.
The most comprehensive development compliance solution; FDA, DO-178B/C, MISRA, JSF, PCI-DSS, ISO, IEC, and more. ntegrate compliance policies into the SDLC and team workflow. Accurately and consistently automate verification and validation tasks
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Fairview Microwave Inc.
Fairview Microwave’s solid state GaN (Gallium Nitride) power amplifiers (also called SSPAs) feature broad frequency bands ranging from 30 MHz to 7.5 GHz and very high gain levels from 43 to 60 dB. These GaN SSPAs also show impressive harmonic response (-15 to -20 dBc) under worst case conditions. Saturated output power levels range from 10W to 100W with 20% to 35% Power Added Efficiency (PAE). All of our high power solid state GaN amplifiers from Fairview have internally regulated single voltage supplies. Our GaN SSPAs are designed to withstand environmental conditions such as humidity, altitude, shock and vibration with an operating temperature ranges from -40°C to +85°C. Some models are also equipped with integrated heat sinks and cooling fans. Most designs are EAR99.
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SSPA series -
Comtech PST Corp.
The SSPA series of amplifiers operate in S-Band with power levels up to 300 watts peak. These Class 'C' amplifiers are designed for maximum power output and maximum AC to RF efficiency with minimal size. Typically used as driver amplifiers for Klystron PA's within a Linear Accelerator.
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521 -
ACO Pacific, Inc.
Accepted internationally 1 kHz represents the "0 dB" reference point of A, B, C Weighting and other filters utilized in acoustic measurement. The Pistonphone - a mechanical sound source - offers a slightly higher degree of accuracy at a substantial increase in cost. In addition, the 200 or 250 Hz operating frequency is mechanically limited and not suited for measurements of filtered inputs. The 0.2 dB accuracy is quickly lost in the 0.7 to 1.5 dB tolerances acceptable for weighting filters at frequencies around 250 Hz.
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TM 100 -
Kusam Electrical Industries Limited
• Standard : Confirms to IEC 942 Class 1.• Output Sound Level : 94dB and 114dB under reference.• Accuracy : ±0.3dB (20°C, 760 mm Hg)• Frequency of 1000 ± 0.1% Hz allows calibration with A / B / C or D weighting networks or linear.• Low Battery Indicator (LED).- Operating Temperature range : -10 ~ +50 C- Storage Temperature range : -40 ~ +65 C (with batteries removed).- Temperature Coefficient : 0 ~ 0.01 dB / C• Calibration of “1 and ½” ceramic microphones.• Altitude Effects : Approx. 0.1 dB decrease for each 2000 feet increase in altitude fromsea level to 12,000 feet elevation, or comparable atmospheric pressure change(approx. every 50 mm of Hg decrease).• Battery : Single 9V transistor Battery. (NEDA 1604)• Battery Life : Approx 100 hours.• Dimension : 48 x 48 x 138mm
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511E -
ACO Pacific, Inc.
Accepted internationally 1 kHz represents the "0 dB" reference point of A, B, C Weighting and other filters utilized in acoustic measurement. The Pistonphone - a mechanical sound source - offers a slightly higher degree of accuracy at a substantial increase in cost. In addition, the 200 or 250 Hz operating frequency is mechanically limited and not suited for measurements of filtered inputs. The 0.2 dB accuracy is quickly lost in the 0.7 to 1.5 dB tolerances acceptable for weighting filters at frequencies around 250 Hz.
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SM-2 -
Monacor International GmbH & Co. KG
Sound level meter (class 2), one-hand operation*Electret microphone capsule*Max hold and data hold function*A and C rating, slow and fast*Additional output for DC/˜V via 3.5 mm jack*Supplied with a practical nylon carrying bag
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3M SE-402 | VP 185057 -
Maschinenbau Haldenwang GmbH & Co. KG.
The 3M SE-402 of quality class 2 is the ideal sound level measuring device for almost every acoustical environment. The frequency weighting can be done according to the characteristics A, C and Z and the time weighting can be set to 'Fast' or 'Slow'. Ergonomically arranged buttons and the clear digital display (resolution 0.1 dB) ensure a high level of user-friendliness.
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72-6635 -
Tenma
*Large LCD Display, easy to read*Characteristic of "A" frequency weighting network are designer to meet IEC 651 type 2*Fast time weighting characteristic mode*Build in adj. VR is available for easy calibration*Condenser microphone for high accuracy & long-term stability*Hold function to freeze the display value*Warning indicator for over and under range*LCD display for low power consumption & clear read-out even in bright ambient light condition*Durable, long-lasting components, including a strong, light weight ABS plastic case*Small and light weight design allow one hand operation*Low battery indicator*High quality with economical cost
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72-2680 -
Tenma
The 72-2680 from Tenma is a sound level calibrator. It is a useful tool to calibrate the sound level meter. It has two heavy duty or alkaline type, DC 9V batteries 006P, MN1604 (PP3).
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Pacer Instruments
Digital Sound Level Meter is a multi-function instrument. It measures both the A and C weightings. It is excellent for checking noise levels to remain in standards of compliance and has many other applications.
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Dalian Taijia Technology Co.,Ltd
Display: 10mm (0.4″) LCD (Liquid Crystal Display)● Function: LP , Leq ,LN.● Frequency range: 31.5Hz~8kHz● Measurement range: LP:30~130dB (A) 35~130dB (C) 35~130 dB (F) Leq :30-130dB LN .: 0-100%● Resolution: 0.1 dB● Accarcy:1dB● Memory: Maximum value (30groups)● Indicator: Low battery indicator● Alarm: electron● Connector:RS232C● Power supply: 4x1.5v AAA (UM-4 battery● Size: 236 x 63 x26 mm● Weight: 170g (including batteries)● Standed delivery:1.Main Unit................1pc2.Carrying Case............1pc.3.Operation Manual.........1pc.● Optional Accessories:1.ND9 sound level meter calibrator2.RS-232 and software3.External rela4.Bluetooth interface
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Guangzhou Amittari Instruments Co.Ltd
The Sound Level Meter is divided into two types: ( AS-156A Accuracy : ±2dB), (AS-156B Accuracy : ±1dB ). Can memorize 30 groups of measurement results and measuring conditions. Permits choice “A” / “C” / “F” weighting and “Fast” / “Slow” response times. Offers 4 measurement parameters: Lp ( soundlevel). Leq (Equivalent Continuous A Sound Level). Lmax (Maximum Sound Level) and LN (Percent of all readings over alarm value set).
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RTT-STO -
Verified Systems International GMBH
RTT-STO is a software analysis tool-suite that automatically performs static program analyses of C code and assembly required to receive certification credit for source-to-object code validation in the context of safety-critical avionics software.