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Dielectric Constant
measure's capacitance of a capacitor's dielectric material over same whose dielectric is vacuum. AKA: Permittivity
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Dielectric Constant (DC) and Dissipation Factor (DF)
Dielectric Constant is used to determine the ability of an insulator to store electrical energy. The dielectric constant is the ratio of the capacitance induced by two metallic plates with an insulator between them to the capacitance of the same plates with air or a vacuum between them. Dissipation factor is defined as the reciprocal of the ratio between the insulating materials capacitive reactance to its resistance at a specified frequency. It measures the inefficiency of an insulating material. If a material were to be used for strictly insulating purposes, it would be better to have a lower dielectric constant.
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Automatic Dielectric Constant Tan Delta And Resistivity
No Balancing and Calculation required to calculate Volume / Surface Resistivityand Dielectric Constant.Complies IEC 60250, IS 4487, Test jig Conform to ASTMD 257Built in Thermal PrinterSerial port RS232 for data downloading.Can be used to check liquid sample with Three Terminal oil cell.Storage 100 Test reports
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Solid Insulation Material Dielectric Loss and Constant Measuring Electrode
Shanghai Launch Electric Co., Ltd.
The electrode is used in dielectric constant εr and dielectric loss tgδ test for solid electrical material such as insulation paint, resin, rubber, fibrillated product, laminate, mica product, plastic, cable, film composite, porcelain and glass. The electrode is designed to use under power frequency of 50Hz, and comply with international standard GB1409-78.
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Manual Dielectric Constant, Tan Delta & Resistivity Test Set
*AC and DC test Voltages switched internally.*Direct digital display of test voltages.*Auto ranging and direct read out of volume resistivity.*Cell constant adjustment and Tan Delta zero correction.*Built-in protection for test sample flash over.
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Automatic Dielectric Constant, Tan Delta & Resistivity Test Set
*Fully automatic or manual measurement In-built AC/DC voltage sources.*RS232 computer interface & USB printer interface provided.*Menu-driven software operation.*Data storage facility.
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Software
Dielectric Constant
Materials Development Corporation
The Dielectric Constant option allows the user to measure the dielectric constant of a wide range of materials. Simply input a test voltage (in accumulation), the area (or diameter), and stray capacitance to determine the relative dielectric constant.
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Material Science Laboratory Instruments
our material science laboratory instruments basically consists of four instruments first, young modulus apparatus which is used for determining the young modulus elasticity of a wire by stretching it. Then second is curie temperature kit which is used for determining the Curie Temperature. With the determination of dielectric constant of PZT material with Temperature variation. After that comes dielectric constant kit which is used for measuring the dielectric constant of solids and lastly our universal B-H Curve Tracer which is used for tracing the B-H loop which is very difficult and needs a good machinery for doing so.
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Handheld Moisture Meters
Since water has a dielectric constant considerable higher than any other material, even a small amount of water in a product will cause the combination dielectric constant to increase substantially. Finna Sensors' capacitance meters can easily recognize this increase in water content and are programmed to display the result in direct reading percent moisture content.
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Dielectric Loss Tangent and Transmission Attenuation Measurement System
RTS03
RTS03 measures relative permittivity (dielectric constant), dielectric loss tangent in the frequency range between 5GHz and 26.5GHz based on a correlation between measurement frequency and transmission attenuation as the microwave passes through the flat plane sample.
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Oil Dissipation Factor Tester
MG-III
Chongqing Kailian Yongrun Industrial Co.,Ltd.
It is designed to determine the dissipation factor (Tan Delta), capacitance and resistance of transformer oil and other liquids. Relative dielectric constant and volume resistivity are calculated automatically and displayed.
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Dielectric Test Fixture
16451B
The 16451B is used to evaluate the dielectric constant of solid dielectric materials accurately, and complies with ASTM D150. The 16451B employs the parallel plate method, which sandwiches the material between two electrodes to form a capacitor. An LCR meter or an impedance analyzer is then used to measure the capacitance created from the fixture.
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Insulating Oil Dielectric Loss Testing Electrode
RY1
Shanghai Launch Electric Co., Ltd.
RY1 insulating oil dielectric loss testing electrode (also called oil cup) is used to precisely measure dielectric loss（tgδ）, relative dielectric constant（εr）and DC resistivity for liquid insulating materials such as cable oil, transformer oil, capacitor oil, etc. The testing electrode is in line with IEC standards in structure and principle. It is inter-changeable with TETTEX2903 which is widely used in China.
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Controlled Impedance Field Solver
Si8000m
TheSi8000m is an all new boundary element method field solver , which builds on the familiar easy to use user interface in earlier Polar impedance design systems. The Si8000m adds enhanced modeling to predict the finished impedance of multiple dielectric PCB builds and also takes into account the local variations in dielectric constant on close spaced differential structures.
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Dielectric Strength Tester
HY
Chongqing Lushun Scientific & Technological Development Co., Ltd.
The instrument is designed and made as per the National Standard GB/T 507 "Test Methods for Breakdown Voltage of Lubricating Oil". It can be widely used to determine dielectric constant of lubricating oils in the field of railway, aviation, power plant, petroleum industry, and scientific institutes.
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Liquid Test Fixture
16452A
The 16452A provides accurate dielectric constant and impedance measurements of liquid materials. The 16452A employs the parallel plate method, which sandwiches the liquid material between two electrodes to form a capacitor. An LCR meter or an impedance analyzer is then used to measure the capacitance created from the fixure.
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Resistive Components
Diamond is the best thermal conductor on earth. Combined with a low dielectric constant, it is an excellent RF dielectric material for high-frequency applications in which thermal performance is equally critical. By applying cutting-edge thin film process and extensive millimeter wave design experience, Smiths Interconnect has created a high-performance line of resistive components. The resulting products, our Diamond RF Resistives® resistors, terminations, and attenuators, are significantly reduced in size and unparalleled in average and peak power handling.
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Leaf Wetness Sensors
Campbell Scientific offers two types of leaf wetness sensors to measure the wetness of leaves: surface contact and electrical resistance. Surface contact sensors measure the electrical resistance of a water film on their surface. Electrical resistance sensors imitate the characteristics of leaves and measure the dielectric constant of their upper surfaces.
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Pyroelectric and Thermal Testing
The optional Chamber Task measures the Pulse Polarization response and Small Signal Capacitance of a Pyroelectric material that is being heated and/or cooled within a thermal chamber, on a hot chuck or in a furnace. From these measurements the Spontaneous Polarization Pr(q) and the Dielectric Constant er(q) are computed. These are then combined to determine the Electrical Displacement D(q) as a function of the temperature q.
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Impedance Analyzer
6632
Frequency range: DC, 10Hz to 1/3/5/10/20/30MHz/50MHz. Basic accuracy up to ±0.08%. Automatic Level Control (ALC). Output impedance 25Ω/100Ω, switchable. Equivalent Circuit Analysis . Built-in DC Bias voltage ±12V. Ultra-high measuring speed < 3ms. Built-in the Dielectric constant-εr. Built-in the Permeability-μr. Support PC Link Software.
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Automatic Oil Tan Delta & Resistivity Kit
MOTR
The Motwane Manufacturing Company
Motwane's MOTR is multifunctional automatic test kit designed for accurate measurement of the Dielectric Constant, TanDelta, Resistivity & capacitance of transformer oil & other electrical insulating liquids. It has preprogrammed test sequences as per various International standards along with customized test sequences as per user requirements. Internal memory for 250 tests provided with PC interface & report generation facility. Inbuilt thermal printer for onsite results. Test cell is designed as per IEC247 with calibrator for onsite calibration of kit.
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Dielectric Material Test Fixture
16453A
The 16453A is designed for accurate dielectric constant and loss tangent measurements on the E4991A/4291A/B. It employs the parallel plate method, which sandwiches the material between two electrodes to form a capacitor. The E4991A/4291A/B measures the capacitance created from the fixure, and option 002 firmware calculates the relative complex permittivity as described in the 16451B. Adjustment to insure parallel electrodes is required when using the 16451B. This adjustment is not required with the 16453A because the fixure has a flexible electrode that adjusts automatically to the material surface.
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Fluid Property Sensors
TE Connectivity (TE) offers distinct fluid property sensor technologies to measure fluids. Our tuning fork technology is coupled with efficient software algorithms for accurate measurement of viscosity, density, and dielectric constant. Dedicated applications for our DEF sensors include oils quality sensors (engine, hydraulic, transmission), fluid monitoring, and others. Our urea quality SCR sensors, based on Ultrasonic Technology (UST), perform an analysis of the Diesel Exhaust Fluid (DEF) fluid to provide urea concentration and secure mis-filling protection to the Selective Catalytic Reduction systems. Our highly reliable reed switch technology is combined with temperature measurement for DEF level sensing.
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HV Power & Transient Isolators
B-1020-C
These supply 120V or 240V AC continuous power for equipment that must operate while at a high voltage to ground or power source. For example, a fiber optic transmitter at the HV level for waveforms to be received and measured or recorded by grounded instrumentation might be powered by an isolation transformer secondary to primary either insulated by potting, oil or air. The low dielectric constant of air insulation provides lower capacitive coupling between the secondary and the primary or ground than would solid or oil insulation. The lower capacitance provides better isolation both at line frequency and especially at high frequency voltages such as lightning or switching transients.
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Dielectric Assessment Kit
DAK
Schmid & Partner Engineering AG
The Dielectric Assessment Kit (DAK) is ideal for all applications where high-precision dielectric parameter measurements (permittivity, conductivity, loss tangent) are required, including applications in the electronic, chemical, food, and medical industries. The dielectric probes are designed for fast, precise, non-destructive, and user-friendly measurements of liquids, solids and semi-solids over the 10 MHz – 67 GHz frequency range.
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Fluid Level Sensor
The output of the fluid level sensor is a voltage which changes in direct proportion to the level of fluid in the probe. The difference in permittivity between air and the fluid being measured changes the capacitance between the probe's two concentric tubes as the level changes. An RS232 connection to a PC allows the user to calibrate the fluid level and thermal drift compensation. The probe is factory replaceable, allowing the electronics to be re-used should the probe become damaged or if a new probe length is required.
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Microwave Cavity Characterization
Material Sensing & Instrumentation
Microwave cavity characterization complements TDR Dielectric Spectroscopy in low-loss materials, providing high-resolution permittivity and loss data at specific single frequencies. Since measurements do not change significantly with frequency in low-loss materials (Kramer-Kronig relation) cavity measurement at select frequencies provides a full characterization across the RF/microwave range.
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Microwave Dielectric Measurement Systems
This system enables fast and non-destructive measurements of materials having various shapes, including thin films. Enables fast and non-destructive measurement of permittivity of thin-films and various dielectric materials using the evanescent mode of an open coaxial resonator.
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Oil Tan Delta Test Set
The Oil Tan Delta (OTD) is a laboratory instrument, which measures the Tan Delta, Resistivity and Relative Permittivity of insulating liquids. These tests give a wider picture of the overall quality of the insulating oil, and will indicate if there is any contamination. Megger has developed features of the OTD to ensure that productivity levels within laboratories are maximised. OTD test sets are supplied with sixteen standard test sequences pre-installed, to support a set of international standards.
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12 kV Insulation Fluid Test Cell
CP TC12
The CP TC12 oil test cell is for determining the relative permittivity, the dissipation factor and the power factor of insulating liquids such as transformer oil.
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Liquid Dielectric Test Cell
LT-4123
The LT-4123 Liquid Dielectric Test Cell is designed for testing the quality of materials such as the insulating oils used in transformers and the resins used in the manufacture of thermosets. With the LT-4123 Liquid Dielectric Test Cell, users can measure the AC loss characteristics and permittivity of liquids. The data gleaned from these measurements are used to set quality benchmarks for fluids during testing and manufacturing.
