suppliers back products & suppliers home standards library reference library engineering community stay informed stay informed back free registration all all news & analysis products & suppliers standards library reference library community acquired engineering360 engineering360 free registration latest engineering news virtual and augmented reality target the manufacturing floor more headlines managing energy use in commercial buildings engineer s guide to corrosion part 2 fuel cell set to power german train service go to news & analysis featured editorial i cobot standardizing safety in collaborative robots non powered dams an untapped source of electricity explore engineering360 standards & references latest reference low pass filters theory design and specifications full text article low pass filters lpf pass signals from low frequencies and reject signals from high frequencies . like other types of active filters they use active components to shape and stabilize the behavior of the filter and to serve as a buffer interface for the driven component . there are two basic classes of active low pass filters switched capacitor and continuous . each type of device is available with first second third fourth fifth sixth seventh or eighth filter order . switched capacitor filters are clocked devices . the input signal is sampled at a high rate and processed discretely instead of on a continuous time basis . continuous low pass filters have a continuous time operation . go to reference library latest standard iso 9001 quality management systems requirements this standard is available for individual purchase . go to standards library engineering community top posts storm of the century posted 10 10 16 in general discussion as matthew continues out to sea losing strength with each passing moment millions that were made fearful by the overhyped calls for destruction by the ... earth not rotating posted 10 13 16 in aerospace http www.genesis creation proof.com earth is stationary.html https www.youtube.com watch v mvxaqqzjru0 i was on facebook and saw a post about th ... go to community product announcements mueller company 350 psi resilient wedge gate valves the all ductile iron mueller style a 2361 resilient wedge gate valve features innovative dual purpose lifting lugs a user friendly t head bolt retention design and a unique pressure assist wedge geometry . the valve is also triple listed ; it meets awwa c515 standards is ul listed and fm approved . macawber group dome valve for robust valve applications the dome valve is used in a wide variety of applications in almost every process . the unique closing and sealing action of the dome valve enables continuous reliable operation where conventional valves fail to perform . view all product announcements discovery & sourcing browse product catalogs click on categories to view sub categories . building and construction building and construction access control communication and security controllers and monitors door and window supplies electrical power and distribution finishing fire detection and suppression hardware hvac cooling hvac heating hvac ventilation lighting fixtures and lamps machines materials plumbing and fluid control roofing safety equipment storage tools uncategorized data acquisition and signal conditioning data acquisition and signal conditioning data acquisition products data input devices sensor transmitters signal conditioning signal converting electrical and electronics electrical and electronics circuit protection connectors electric motors electrical distribution and protection electromechanical enclosure accessories and services enclosures lighting fixtures and lamps meters readouts and indicators motor parts and accessories passive and discrete piezoelectric devices power generation and storage power supply and conditioning surge suppressors wire and cable wire and cable accessories flow control and fluid transfer flow control and fluid transfer flow sensing hose pipe and tubing hose pipe and tubing accessories pressure regulators pumps valve actuators and positioners valves viscosity sensing fluid power fluid power fluid power accessories hydraulic equipment and components pneumatic equipment and components imaging and video equipment imaging and video equipment bar code devices image sensors machine vision equipment meters readouts and indicators video cameras and accessories video equipment industrial and engineering software industrial and engineering software accounting and financial software application development and deployment software business applications communications software content and knowledge management software data storage and management software educational and training software engineering and scientific software enterprise and plant management software general office software imaging and graphics software industrial controls software internet and web software quality assurance test and compliance software security software specialty software tracking software industrial computers and embedded systems industrial computers and embedded systems bus systems computer peripherals connectors data acquisition desktop personal computers embedded systems industrial computing mobile computing raid products lab equipment and scientific instruments lab equipment and scientific instruments analytical instruments chromatography dimensional instruments environmental and water quality instruments filtration and water purification imaging equipment lab automation lab equipment lab safety lab supplies lab thermal processing microscopy product and material testing recorders and loggers sample preparation and liquid handling separations spectroscopy temperature forcing systems test and measurement equipment thermal platforms and thermal plates manufacturing and process equipment manufacturing and process equipment abrasives grinding and finishing air quality coating equipment cutting and forming tools electronics and microelectronics manufacturing environmental equipment filtration and separation products fluid processing equipment gas handling equipment hand power and assembly tools heating and cooling equipment industrial cleaning and surface preparation industrial heaters and heating elements industrial machine safeguarding inspection tools and instruments machine tools manufacturing equipment and components materials processing equipment molding equipment and supplies process controllers safety and personal protective equipment safety sensors and switches vacuum equipment web handling and processing equipment welding equipment and supplies material handling and packaging equipment material handling and packaging equipment industrial printing equipment material handling accessories material handling equipment packaging and labeling equipment storage and containers web handling and processing equipment materials and chemicals materials and chemicals abrasives and abrasive products biocides carbides ceramics and glass materials chemicals and raw materials composites textiles and reinforcements electrical optical and specialty materials industrial adhesives industrial and specialty gases industrial coatings and sealants industrial oils and fluids metals and alloys plastics elastomers and polymers refractory fireproofing and thermal insulation stock fabricated materials and shapes mechanical components mechanical components bearings and bushings belts and pulleys brakes and clutches chains and sprockets couplings collars and universal joints fastening and joining gears and gearing industrial hardware industrial heaters and heating elements industrial tools power transmission seals shock and vibration control products solenoids springs switches motion and controls motion and controls bearings and bushings clutches and brakes encoders and resolvers engines and components limit switches linear actuators linear and rotary motion components linear position sensing machine and motion controllers magnets motor controls and drives motors operator interfaces orientation position sensing piezoelectric devices pneumatics and pneumatic components positioning stages slides and guides power transmission seals shock and vibration control products solenoids springs networking and communication equipment networking and communication equipment communication devices networking equipment rf microwave and wireless components optical components and optics optical components and optics fiber optics lasers light sources optical assemblies optical components optoelectronics semiconductors semiconductors analog and mixed signals audio and video ic circuit protection devices communication ic discrete ic interface devices ic optoelectronics lab on a chip loc devices logic memory chips mems devices microprocessors and microcontrollers power and power management ic programmable logic devices semiconductor foundry services sensor chips timing circuits sensors transducers and detectors sensors transducers and detectors acoustic and audio equipment chemical sensors density and specific gravity sensing displacement sensing electrical and electromagnetic sensing encoders and resolvers environmental sensors flow sensing force sensing gas sensing humidity and moisture sensing level sensing linear position sensing orientation position sensing pressure sensing proximity or presence sensing rotary position sensing safety sensors and switches security sensors and systems temperature sensing tension sensing tilt sensing torque sensing vacuum sensing velocity sensing vibration and acceleration sensing viscosity sensing vision and color sensing weather sensing specialized industrial products specialized industrial products defense and security education and training energy and natural resources environment food and beverage medical other industries pharmaceutical and biotechnology technical publications and standards transportation uncategorized products test and measurement equipment test and measurement equipment calibration instruments standards and reference sources dimensional measurement electrical and electronic test equipment electronic meters and testers electronic test and interconnect accessories environmental test equipment fiber optic test equipment meters readouts and indicators multimeters and electrical test meters nondestructive testing equipment predictive maintenance and condition monitoring product and material testing recorders and loggers sensing and measurement instruments browse services & consultants click on categories to browse . building and construction services business services calibration and testing services contract manufacturing and fabrication electrical and electronic contract manufacturing engineering and technical services industrial automation services industrial maintenance material handling and packaging services specialized industrial services advertisement popular news 1 . engineer s guide to corrosion part 2 2 . fuel cell set to power german train service 3 . virtual and augmented reality target the manufacturing floor advertisement upcoming events oct 16 2016 paris france smart grids for smart cities ieee smart grid presents its first ever 2016 ieee international forum on smart grids for smart cities . view full calendar quick links directory of suppliers product directory datasheet directory technical articles engineering360 webinars click here to skip or ad will close in 15 seconds about engineering360 advertise with us client services follow engineering360 top categories terms of use copyright 2016 ieee globalspec all rights reserved . use of this website signifies your agreement to the ieee terms and conditions . home site map contact accessibility nondiscrimination policy privacy & opting out of cookies