介质损耗测试仪的原理

LTS1500 光损耗测试仪光纤通讯 Loss Test Set-LTSThe FTE-4000 TTI Hand Held Variable Optical Attenuator is available in two models, with 40 dB attenuation level or 80 dB attenuation level to meet single mode testing requirements. Like the rest of the FTE line, the VOA has an onboard help feature. The FTE-4000 has a built in output power monitor to assist in setting the appropriate attenuation levels and a sweep mode which can scan the attenuation across desired levels. It is rugged with a splash proof housing with a highly protective boot. The FTE-4000 can assist in the testing of system budget compliance, balancing transmitter power and adjusting receiver attenuation settings.Features? Integrated Power Meter? Up to 80 dB Attenuation? Typical Insertion Loss 2dB (40dB Model)? Remotely Program Sweep Settings? Adjustable step sizes? USB PC Interface w/Remote Operation? Absolute/Relative Attenuation Settings? Calibrated at 1310/1550? Sealed Rugged Case? Lowest Cost Hand Held VOA? 4” Color DisplayOrdering InformationFTE-4000-4040 dB Variable Optical AttenuatorFTE-4000-8080 dB Variable Optical AttenuatorFTE-4000 SpecificationsAttenuation RangeFTE-4000-4 2 to 40dBFTE-4000-8 4 to 80dBWavelength Range1310, 1550 nmResolution.01 dBUncertainty+/- 0.5 dBRepeatability+/- 0.1 dBInsertion Loss2 dBReturn Loss50 dBMax Input Power27 dBmGraphical Display4 in Color TFTDimensions7.75 x 4.5 x 2.25 inchesWeight2 lbsBatteryRechargeable NiMH - 6 hours operating timePower100-240 universal US, GB, EU, AU MainsEnvironmental Operation-10°C to + 40°CAccessories IncludedUniversal power supply. FC and SC adaptors,CertSof VI Software, USB Cable and Manual

1．信号稳定，测试误差小。2．可适用高带宽阻抗测试仪阻抗条测试，损耗较小。适用于多种阻抗测试仪

FTE5000 损耗测试仪 带ORL和视频探头The FTE-5000 combines four functions for testing optical networks together in one unit. It brings together a -55dB ORL meter, power meter, laser source and video scope capability with IEC61300-3-35 method “B” Pass/Fail End face Grading Map (probe sold separately). The FTE-5000 is a full featured ORL Loss Test Set. It has 4” super bright color touch screen display with large easy to read characters. It performs optical return loss measurements to -55db at up to three wavelengths and is an automated loss test set with dual or triple wave Light sources. The power meter uses an InGaAs detector which is calibrated at 850,1300, 1310, 1490, 1550 and 1625nm, with a dynamic range of -77dBm. These units are available in single, dual, triple or quad wavelength configurations and displays measurements up to three wavelengths at one time. In the Autotest mode, the master unit changes wavelengths at a fixed rate and informs the slave unit of the wavelength currently being measured. Use this method to test up to three wavelengths at a time and store the loss measurements for each of the lasers fired during the test. Up to 5000 tests may be stored and recalled via the unit’s USB port. Use TTI’s CertSoft PC application software for downloading stored data and organizing the information or use the Android Bluetooth virtual instrument application for remote operation. The information from OTDR, LTS, ORL and video scope may be combined to offer a comprehensive report for all of your network testing needs. The FTE-5000 also includes a video scope (probe sold separately). Use the video scope to ensure the integrity and cleanliness of the connectors being tested. Use the modulation feature to perform fiber identification function. The power meter will identify modulated signals at 270, 1000 and 2000 Hz produced a modulate light source. Features?Optical Loss/ORL Tester?ORL Measurement Range to -55 dB ?PM with -77 dBm Dynamic Range ?IEC61300-3-35 method “B” Video Scope (Probe Sold Separately)?Auto Test Up To Three Wavelengths ?Automated Loss Measurements ?Auto Wavelength Switching ?Universal PM and LS Adapters?Storage for 5,000 Test ?Bright Color Display?Rechargeable NiMH Batteries?USB Interface ?Free Report Software ?On-Board Help FeatureOrdering InformationFTE-5000-8513 LTS with 850/1300nm Light Source and Video Scope (Probe Sold Separately)FTE-5000-1315LTS with 1310/1550nm Light Source and Video Scope (Probe Sold Separately) FTE-5000-345LTS with 1310/1490/1550nm Light Source and Video Scope (Probe Sold Separately)FTE-5000-QUADLTS with 850/1300/1310/1550nm Light Source (No Video Scope Capability)VIS300Video Probe for use with FTE-7000, FTE-1700 and FTE-5000 seriesGeneral SpecificationsDisplay4 in Color TFTStorage Locations5000Battery/Operating Time4 AA Rechargeable NiMH / 6 hrsPower Requirements Wall Mount, Universal 100-240V 47-63 Hz 9 VDC Center Positivewith, US, UK, Continental Europe, and Australian PlugsOperating Temperature Range -10 to 45 CDimensions(w/o rubber boot ) 7.62” L x 3.88” W x 1.56” H (194mm L x 99mm W x 40mm H) Weight 0.52 KgAccessories ProvidedFC, ST, SC adaptors for both Power Meter and Light Source, rubber boot, battery, power supply/charger, manual and software on CD and USB cable Power Meter SpecificationsDetector TypeInGaAsConnector Type 2.5mm InterchangeableDynamic Range+5 to -77dB (CATV - +25 to -57dB)Auto Test Range0 to -40dBCalibrated Wavelengths 850,1300,1310,1490,1550,1625nmUnits of MeasurementdBm, dB, mW, μW and nWPower Measurement Uncertainty± 0.18 dB under reference conditions, ± 0.25 dB from 0 to -65 dBm,± 0.35 dB from 0 to +5 dBm and from -65 to -77 dBmUnits of Measurement dBm, dBResolution.01 dBModulation Modes DetectedCW, 270 Hz, 1000 Hz, 2000 HzLight Source SpecificationsFiber TypeSingle Mode, Multimode Wavelengths Available850,1300,1310,1490,1550 and 625 nm ±20nm as Unit is Equipped Output Power0 dBm, 1mw (-3dBm @ 1625nm)Output Stability± .05 dB / 24 hrs @ constant temp,, ± .02 dB/C temperature coefficientLaser Safety ClassificationClass I Safety Per FDA/CDRH and IEC-825-1 RegulationModulation ModesCW, 270 Hz, 1000 Hz, 2000 HzSpectral Width3nm typ.ORL MeterOptical Return Loss Dynamic Range0-55 dBORL WavelengthsSM Source WavelengthsOptical Return Loss Accuracy± 1dB @ -40db reflectionResolution0.01 dB