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Supplier: Yokogawa Corporation of America
Description: An optical time domain reflectometer (OTDR) is a precision instrument used to locate events or faults along a fiber link, typically within an optical communications network. The OTDR launches a series of high speed optical pulses into the fiber to be measured. Various events on the
- Test Equipment Type: Optical Time Domain Reflectometer
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Description: IEC 61196-1-116:2015 applies to coaxial communications cables. It specifies test methods for determining the impedance of coaxial communications cables with time domain reflectometry (TDR). This publication is to be read in conjunction with IEC 61196-1:2005.
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Supplier: Accuris
Description: Standard Test Method for Water Content and Density of Soil in Place by Time Domain Reflectometry (TDR)
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Supplier: Accuris
Description: Standard Test Method for Determination of Water (Moisture) Content of Soil by the Time-Domain Reflectometry (TDR) Method
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Description: IEC/IEEE 62582-5:2015 contains methods for monitoring the attenuation condition of optical fibres and cables in instrumentation and control systems using optical time domain reflectometer measurements in the detail necessary to produce accurate and reproducible measurements. It
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Description: Standard Docs
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Description: Standard Docs
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Supplier: Accuris
Description: Coaxial communication cables Part 1-116: Electrical test methods \x97 Test for impedance with time domain reflectometry (TDR)
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Supplier: Accuris
Description: Coaxial communication cables - Part 1-116: Electrical test methods - Test for impedance with time domain reflectometry (TDR)
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Supplier: CSA Group
Description: IEC 61196-1-116:2015 applies to coaxial communications cables. It specifies test methods for determining the impedance of coaxial communications cables with time domain reflectometry (TDR). This publication is to be read in conjunction with IEC 61196-1:2005.
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Supplier: Transcat, Inc.
Description: discontinuities, and the results can be displayed in either time or frequency domain. The transform used by the analyzer resembles time domain reflectometry (TDR) measurements. TDR measurements however are made by launching an impulse or step into the test device
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Supplier: Transcat, Inc.
Description: discontinuities, and the results can be displayed in either time or frequency domain. The transform used by the analyzer resembles time domain reflectometry (TDR) measurements. TDR measurements however are made by launching an impulse or step into the test device
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Supplier: ASTM International
Description: 1.1 This test method covers the determination of water content (or moisture content) in soil by the use of the electromagnetic technique called Time-Domain Reflectometry (TDR). 1.2 This test method was written to detail the procedure for conventional TDR measurements of soil. Other TDR
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Supplier: ASTM International
Description: 1.1 This test method covers the determination of water content (or moisture content) in soil by the use of the electromagnetic technique called Time-Domain Reflectometry (TDR). 1.2 This test method was written to detail the procedure for conventional TDR measurements of soil. Other TDR
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Supplier: CSA Group
Description: IEC/IEEE 62582-5:2015 contains methods for monitoring the attenuation condition of optical fibres and cables in instrumentation and control systems using optical time domain reflectometer measurements in the detail necessary to produce accurate and reproducible measurements. It
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Supplier: ASTM International
Description: 1.1 This test method may be used to determine the water content of soils and the density of soils in place using Time Domain Reflectometry. 1.2 This test method applies to soils that have 30 % or less by weight of their particles retained on the 19.0-mm
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Supplier: ASTM International
Description: 1.1 This test method may be used to determine the water content of soils and the in situ density of soils using a TDR apparatus. 1.2 This test method applies to soils that have 30 % or less by weight of their particles retained on the 19.0-mm [3/4-in.] sieve. 1.3 This test method is suitable for use
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Supplier: Luna Innovations
Description: sub-millimeter resolution. Learn more about highest-resolution OTDR measurements available in the data sheet. Fully Portable and Rugged Dual Channel OBR The OBR 6200 Series utilizes optical frequency domain reflectometry (OFDR) technology to measure distributed return
- Connector Type: Other
- Dynamic Range: 70 dB
- Dynamic Range Resolution: 0.1000 dB
- Features: Display
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Supplier: Luna Innovations
Description: The Luna 6415 is a fast and simple-to-use analyzer for passive optical components and modules. The Luna 6415 extends the industry-leading optical frequency domain reflectometry (OFDR) platform from Luna Innovations to manufacturing test and quality control applications. Unlike
- Connector Type: Other
- Dynamic Range: 70 dB
- Dynamic Range Resolution: 0.1000 dB
- Form Factor: Bench Top
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Supplier: Solutions with Innovation, LLC
Description: The 703 GWR transmitter combines TDR (time domain reflectometry), ETS (equivalent time sampling) and modern low power circuitry. This combination of technologies brings to the level market a high-speed radar circuit (speed of light transmission) at a fraction of the cost
- Level Measurement Type: Continuous Level
- Maximum Operating Pressure: 1000 psi
- Measuring Range: 6 to 192 inch
- Meter Technology: Radar / Microwave
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Description: Rayleigh backscatter and phase detection method by phase-sensitive coherent optical time-domain reflectometry (?-OTDR) only. Quasi-static and low frequency operation modes are not covered by this document. Generic specifications for fibre optic sensors are defined in IEC 61757.
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Description: studies, wave tilt methods,probe impedance methods, mutual impedance methods, transient methods, time domain reflectometry, groundprobing radar, laboratory-based techniques, and free-space reflection measurements. The separation distancebetween the probes and the wavelength of
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Description: . It also indicates a measuring method for an impedance variation of FPCBs using NSMs with the prevailing TDR (time domain reflectometry) method. This method is resticted to measuring only the variation of an impedance value in accordance with the variation of the Cu linewidth
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Supplier: BinMaster, Inc.
Description: The GWR-3000 is a guided wave radar designed specifically for liquid applications. It uses time domain reflectometry (TDR) to continuously measure levels in tanks and standpipes. It is offered with either a cable or rod customized to the depth of the vessel. The GWR-3000 level
- Communication Interface Options: Serial Interface, Other
- Device Classification: Sensor System
- Instrument Display Options: Digital Readouts
- Level Measurement Type: Continuous Level
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Supplier: BinMaster, Inc.
Description: BinMaster’s GWR-2000 utilizes time domain reflectometry (TDR) to continuously measure the distance, level, and volume of powders or solids in bins, tanks, and silos. This sensor features hazardous location approvals, a very small upper dead zone, and assures highly accurate
- Communication Interface Options: Serial Interface, Other
- Device Classification: Sensor System
- Level Measurement Type: Continuous Level
- Material Temperature Range: 392 F
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Supplier: CSA Group
Description: . It also indicates a measuring method for an impedance variation of FPCBs using NSMs with the prevailing TDR (time domain reflectometry) method. This method is resticted to measuring only the variation of an impedance value in accordance with the variation of the Cu linewidth
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Supplier: SAE International
Description: intermittent as a result of the in-flight vibration. For arc fault detection, a great number of methods have been proposed, which can be categorized into mechanical and electrical methods; in general, features can be extracted from time domain, frequency domain, or
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Description: This book offers a comprehensive review of innovative measurement and monitoring solutions based on time domain reflectometry (TDR). This technique has numerous applications in several fields, ranging from the characterization of electronic devices to quality control of
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Supplier: KOBOLD Instruments, Inc.
Description: The NGR is a level sensor that uses TDR technology (time-domain re?ectometry) and can be used in oil and water-based liquids without calibration. The NGR’s guided radar uses time-of-?ight technology to measure electromagnetic pulses. The time difference between the sent
- Device Classification: Instrument / Sensor System
- Display: Digital Readouts
- Level Measurement Type: Continuous Level
- Material Temperature Range: 68 to 212 F
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Supplier: KOBOLD Instruments, Inc.
Description: The KOBOLD NGM Series guided wave radar level transmitter uses time domain reflectometry (TDR) technology, also known as “guided microwave” or “guided wave radar.” This means that low-energy and high-frequency electromagnetic impulses, generated by the sensor’s
- Device Classification: Sensor-Only
- Level Measurement Type: Continuous Level
- Material Temperature Range: -58 to 482 F
- Maximum Operating Pressure: 580 psi
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Supplier: SAE International
Description: . Spread spectrum time domain reflectometry (SSTDR) has been developed for locating these intermittent faults on live aircraft wires. A pseudo noise (PN) code is injected on the wire, well below the noise margin of the system. The PN code can be self-correlated to give the
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Supplier: Fluidwell bv
Description: /4" process connection thread, the Guidense can be mounted at nearly any existing tank nozzle. Configuration of the TDR100 isn't any harder. Easy configuration can be done by your own crew instead of expensive service engineers. The Guidense TDR100 uses Time Domain Reflectometry
- Device Classification: Sensor-Only
- Features: Programmable
- Level Measurement Type: Continuous Level
- Meter Technology: Radar / Microwave
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Supplier: CSA Group
Description: requirements for cabling interface adapters and test cords have been revised; - enhanced three-test-cord reference method has been introduced; - information on optical time domain reflectometry (Annex C) has been revised; - examples of calculations of channel and permanent link
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Supplier: Picosecond Pulse Labs, Inc.
Description: /TDT plug-in Compact, easy to use design that is quick to connect and set-up Applications Time Domain Reflectometry Analysis Time Domain Transmission Analysis The Picosecond Advantage: Our ultra-fast pulse capabilities enable the highest resolution
- Device Type: Generator
- Form Factor: Portable / Benchtop
- Generator Type: Pulse
- User Interface: Front Panel and Display
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Supplier: Picosecond Pulse Labs, Inc.
Description: differential or dual TDR/TDT plug-in Compact, easy to use design that is quick to connect and set-up Applications Time Domain Reflectometry Analysis Time Domain Transmission Analysis The Picosecond Advantage: Our ultra-fast pulse capabilities
- Device Type: Generator
- Form Factor: Portable / Benchtop
- Generator Type: Pulse
- User Interface: Front Panel and Display
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Supplier: ValueTronics International, Inc.
Description: Pulser voltage: 250 mV Input: 3.5 mm connector The Tektronix SD24 sampling head has a rise time of 17.5 ps or less, with a typical 20 GHz equivalent bandwidth. Each channel is also capable of generating a fast rising step for use in Time Domain Reflectometry (TDR). In TDR
- Bandwidth: 20000 MHz
- Number of Input Channels: 2 (# channels)
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Supplier: Campbell Scientific, Inc.
Description: The CS505 Fuel Moisture Sensor consists of an epoxy-encapsulated electronics package. It uses Time Domain Reflectometry Technology to measure the moisture content of the 10824 10-hour Fuel Moisture Stick. The 10824 is a USFS-specified, 10-hour, ponderosa-pine dowel that is
- Electrical Outputs: Frequency or Pulse
- Form Factor: Sensor / Probe
- Technology: Other
- Variables Measured: Moisture Content
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Supplier: ValueTronics International, Inc.
Description: make repairs. Additional Features: Broadest frequency range available in the market: 2 MHz to 20 GHz Standard TFT daylight viewable color display Real-time measurement speed; Real-time DTF calculations Utilizes Frequency Domain Reflectometry (FDR
- Frequency Range: 2.00E7 kHz
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Supplier: ValueTronics International, Inc.
Description: Microwave Connectors (3.5 mm, 2.92 mm, 2.4 mm and 1.85 mm) The 80E04 is a dual channel Time Domain Reflectometry (TDR) sampling module. Each channel of these modules is capable of generating a fast step for use in TDR mode and the acquisition portion of the sampling module
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Supplier: ValueTronics International, Inc.
Description: measurement capability includes precision Return Loss/SWR, Cable Loss and optional T1/E1 and power meter measurements. Frequency Domain Reflectometry (FDR) provides superior Distance to Fault (DTF) analysis to locate faults accurately. Patented RF interference rejection enables
- Frequency Range: 4.00E6 kHz
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Supplier: Microchip Technology, Inc.
Description: 10/100BASE-T/TX with HP Auto MDI/MDI-X for reliable detection of and correction for straight-through and crossover cables. Microchip's proprietary LinkMD® Time Domain Reflectometry (TDR) based function is also available for determining the cable length, as well as cable
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backscatter-level sensitivity for testing short networks deployed in aerospace, naval, data center and industrial applications. Troubleshoot fiber assemblies in the field to easily locate optical loss events with sub-millimeter resolution. The OBR 6200 Series utilizes optical frequency domain (read more)
Browse Optical Time Domain Reflectometers (OTDR) Datasheets for Luna Innovations -
time domain reflectometry (TDR) to continuously measure levels in tanks and standpipes. It is offered with either a cable or rod customized to the depth of the vessel. The sensor delivers precise and reliable readings for both level and interface (read more)
Browse Liquid Level Sensors Datasheets for BinMaster, Inc.
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Time Domain Reflectometry Guided Wave Radar Tank Level System (.pdf)
The Prime Technology TDR Tank Level System Model 9295 uses guided wave radar to measure tank levels. The system architecture is configured to allow for tank level measurements in a nuclear environment without the need to have nuclear hardened electronics. This system meets the Navy Military
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Broadband Reflectometry for Enhanced Diagnostics and Monitoring Applications
However, it serves as an excellent summary of important broadband reflectometry approaches including the time domain reflectometry (TDR), the frequency domain reflectometry (FDR) and the TDR/FDR combined approaches.
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Advances in Environmental Geotechnics
ABSTRACT: Time domain reflectometry (TDR) is a fast, accurate, and safe technology.
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Laboratory and Field Testing of Unsaturated Soils
Meerdink et al. (1996) described a testing procedure where both the pore water pressure profiles (tensi- ometers and/or thermocouple psychrometers) and the water content profiles ( Time Domain Reflectometry , Topp et al. 1980) are measured.
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Field Measurement of Suction, Water Content, and Water Permeability
Soil Sci Soc Am J 54(1):1–6 Baker JM, Spaans EJA (1993) Comments on ‘‘ Time domain reflectometry measurements of water content and electri- cal conductivity of layered soil columns.’’.
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Electromagnetic Aquametry
14 Advanced Measurement Methods in Time Domain Reflectometry for Soil Moisture Determination .
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Principles of Microwave Measurements
4 'Operating and programming manual', HP8510 Network Analyser, March 1984 5 ADAM, S. F.: 'Microwave theory and application' (Prentice-Hall, 1969) p. 148 6 ' Time domain reflectometry '.
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Time-domain Reflectometry (TDR) in Geotechnics: A Review
Baker, J. and Allmaras, R. (1990), "System for automating and multiplexing soil moisture measurement by time domain reflectometry ," Soil Science Society of America Journal, 54(1), 1-6.
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Advances In Distributed FODAR (Fiber Optic Detection And Ranging)
As with free -space optical radar systems, the range information can be acquired by the use of OTDR (Optical Time Domain Reflectometry ) or by OFDR (Optical Frequency Domain Reflectometry).