Zhengzhou optical attenuator [Zhengzhou] Emi Instrument Co., Ltd. Tel :0371 -55,676,313 Business QQ: 2417674438 Megumi Instrument Co., Ltd., Zhengzhou, founded in 2002, is specialized in domestic and imported high-quality electronic equipment, instrumentation and aftermarket sales agent services. The reason why we named "Megumi" because "beauty" in Henan has "Heart, just right, OK" means. "Megumi" is to provide you with the economic benefits, performance excellence satisfying instrument. Instruments operated mainly divided into: electronic measuring instruments, electrical instruments, electrical equipment, environmental testing equipment, nondestructive testing equipment, safety testing instruments. Its widely used in power industry, universities and research institutions, electronic products manufacturing enterprises, communications industry, radio and television, aerospace, petrochemical, railway departments. Companies strong, talented, able to efficiently complete instrumentation engineering product support and maintenance. Principal activities include: digital oscilloscopes, oscilloscope, signal generator, Sweep, spectrum analyzers, field strength meter, metal detectors, AC-DC power supply, bridge, pressure meter, earth resistance tester, Leakage current tester, insulation resistance tester, voltage tester, electrical tester, transformer tester, power meter, thermometer, infrared thermometer, noise meter, sound level meter, anemometer, a variety of harmful gas detector, water quality tester, hardness tester, vibration meter, coating thickness gauge, ultrasonic thickness gauge, gauge / micro-pressure gauge, flaw detector, roughness and so on. Over the years, in support of the community and the tireless efforts of all staff, we have established in the field of equipment sales high visibility and credibility, now has a perfect market system, marketing management system and customer service system. Our aim is dedicated test and measurement technology, communication and advocacy, with sincere service to help users improve work efficiency and capacity, and through active struggle and the pursuit of their own development and create opportunities for profit and power. Optical attenuator for attenuating the optical power of the device, it is mainly used in optical fiber systems indicator measures, short-distance communication system such as signal attenuation and system testing applications. Optical Attenuator require low weight, small size, high accuracy, good stability, ease of use. It can be divided into fixed, variable grading, continuous adjustable several. Below are continuously adjustable attenuator working principle and structure diagram. Adjustable optical attenuator for optical measurement in general. Measuring the sensitivity of the optical receiver, it is usually in the optical receiver input, to adjust the size of the received optical power. Using optical attenuator, to keep the environment clean and dry when not in use to cover the protective cap. To move gently, non-collision. Fu photoelectron FG590 handheld digital variable optical attenuator using a neutral density filter optical signal attenuation. By rotating the instrument front panel rotary dial in a continuous adjustment between 2.5 and 60dB attenuation. The instrument is in the optical fiber communication system, a fiber optic lines to simulate the ideal attenuation, it can be used for system verification test: for example in the "receiver sensitivity" test, the need for continuous, quantitative attenuation adjustment, in case, FG590 is an ideal choice. Features rotating disk step attenuator: stepping 0.05dB attenuation values ??can be displayed relative or absolute attenuation values ??optional 10 minutes without operating automatic shutdown feature two-way attenuation, any connection, easy to use system shutdown memory function, memory decay before shutdown volume and step size, and then boot the system back to the state before shutdown