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Supplier: Accuris
Description: Generic Requirements for Metallic Time Domain Reflectometry Test Sets
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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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Supplier: Accuris
Description: Standard Test Method for Water Content and Density of Soil In situ by Time Domain Reflectometry (TDR)
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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: 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: 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.
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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-place 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
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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 [3/4-in.] sieve. 1.3 This
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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
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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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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: 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
- Features: Optical Time Domain Reflectometer
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Supplier: Transcat, Inc.
Description: reflection or transmission response Gating available to remove unwanted responses (from test fixtures for example) View time and frequency domain data simultaneously Transform frequency domain to the time domain or time domain to the frequency
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Supplier: Transcat, Inc.
Description: reflection or transmission response Gating available to remove unwanted responses (from test fixtures for example) View time and frequency domain data simultaneously Transform frequency domain to the time domain or time domain to the frequency
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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 loss (RL) and
- Wavelength Range: 4 to 10 nm
- Dynamic Range: 70 dB
- Dynamic Range Resolution: 0.1 dB
- Operating Temperature: -20 to 35 C
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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
- Wavelength Range: 40 nm
- Dynamic Range: 70 dB
- Dynamic Range Resolution: 0.1 dB
- Test Equipment Type: 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
- Measuring Range: 6 to 192 inch
- Maximum Operating Pressure: 1,000 psi
- Output Options: Analog Current Signal (e.g., 4-20 mA)
- Level Measurement Type: Continuous Level
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Description: Rayleigh backscatter and phase detection method by phase-sensitive coherent optical time-domain reflectometry (ϕ-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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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
- Measuring Range: 1,200 inch
- Material Temperature Range: 392 F
- Features: Analog Current, Top mount
- Level Measurement Type: Continuous Level
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Supplier: KOBOLD Instruments, Inc.
Description: The NGR is a level sensor that uses TDR technology (time-domain reflectometry) and can be used in oil and water-based liquids without calibration. The NGR’s guided radar uses time-of-flight technology to measure electromagnetic pulses. The time difference between the sent
- Measuring Range: 157.4804 inch
- Maximum Operating Pressure: 145.0377 psi
- Material Temperature Range: 68 to 212 F
- Features: Analog Current, Instrument / Sensor System
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Description: 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 by
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Description: 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 the radiation
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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
- Measuring Range: 0 to 900 inch
- Maximum Operating Pressure: 58 psi
- Material Temperature Range: -76 to 392 F
- Features: Analog Current, Instrument / Sensor System, Other Interface Type
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Supplier: CSA Group
Description: 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 by
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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 circuitry, are
- Measuring Range: 787.402 inch
- Maximum Operating Pressure: 580.1508 psi
- Material Temperature Range: -58 to 482 F
- Features: Analog Current, Top mount
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Supplier: Picosecond Pulse Labs, Inc.
Description: 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 TDR analysis and the highest speed TDT
- Amplitude: 0.2 to 2.3 volts
- Rise Time: 0.007 to 0.009 ns
- User Interface: Front Panel and Display
- Device Type: Generator
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Supplier: ValueTronics International, Inc.
Description: 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 mode, the acquisition portion of the sampling head monitors the incident step
- Bandwidth: 20,000 MHz
- Number of Input Channels: 2 (# channels)
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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: 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 TDR analysis and the highest speed TDT analysis available.Description: The
- Amplitude: 0.2 to 2.3 volts
- Rise Time: 0.007 to 0.009 ns
- User Interface: Front Panel and Display
- Device Type: Generator
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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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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
- Moisture Content Range: 0 to 70 %
- Moisture Content Accuracy: 12 ±%
- Electrical Outputs: Frequency or Pulse
- Variables Measured: Moisture Content
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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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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).