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VLF Electromagnetics
VLF surveying relies on radio signals that are broadcast from navigation stations around the world. The principle is that these signals are deflected in certain ways when they pass through conductive ore or water-filled vertical-to-sub-vertial fractures in the earth. By monitoring these deflections, the position and, potentially, size of the target can be determined.
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VLF Receiver
T-Vlf
The VLF receiver is specially designed for high productivity surveys, in ground water and mining exploration. No orientation of the operator with respect to the direction of the transmitter is required since three magnetic sensors measure the components of the VLF field. Tilt or horizontality of the sensor unit is neither required since two inclinometers correct for tilted position.
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VLF Diagnostics System
PHG 80 TD
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR PHG 80 TD. The combination of the PHG 80 programmable test generator with the BAUR dissipation factor measurement system produces the cable testing and diagnostics system PHG TD. It is operated via PC control. Dissipation factor measurement and diagnostic testing sequences can be programmed in the menu, after which the dissipation factor measured values are automatically determined in various voltage steps and a final evaluation is conducted.* Biggest dynamic range of tan delta measured values from 1 to 10-4 with a cable capacitance >10 nF to 20 uF* High resolution +/- 1x10-5 applicable even in new PE/XLPE cables* Insensitive against interferences due to complete mains separation* Lowest time required for assessing a medium-voltage cable (3-phase approx. 1 hour)
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VLF Diagnostics System
PHG 70 TD
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR PHG 70 TD. The combination of the PHG 70 programmable test generator with the BAUR dissipation factor measurement system produces the cable testing and diagnostics system PHG TD. It is operated via PC control. Dissipation factor measurement and diagnostic testing sequences can be programmed in the menu, after which the dissipation factor measured values are automatically determined in various voltage steps and a final evaluation is conducted.* Biggest dynamic range of tan delta measured values from 1 to 10-4 with a cable capacitance >10 nF to 20 uF* High resolution +/- 1x10-5 applicable even in new PE/XLPE cables* Insensitive against interferences due to complete mains separation* Lowest time required for assessing a medium-voltage cable (3-phase approx. 1 hour)
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VLF Insulation Testing
VLF testing uses very low frequencies as part of an AC cable maintenance routine. VLF testers are smaller and more practical than AC testers but output the same amount of power as a 50 Hz mains device. This combination of size and power makes Very Low Frequency cable testing perfect for testing longer sections of cable and apparatus
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VLF Insulation Testing
Weshine Electric Manufacturing Co., Ltd
1. The current, voltage and waveform data are directly obtained from the high voltage side, so the data is accurate.2. It has over-voltage protection function. When the output exceeds the set voltage limit, the instrument will stop for protection, and the action time is less than 20ms.3. It has over-current protection function: it is designed as high-voltage and low-voltage dual protection, and the high-voltage side can carry out accurate shutdown protection according to the set value; when the current on the low-voltage side exceeds the rated current, it will carry out shutdown protection, and the action time is less than 20ms.
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VLF test system
BAUR PHG 80 portable
BAUR Prüf- und Messtechnik GmbH
Portable, high performance test generator with VLF truesinus technology. The BAUR PHG 70/80 portable VLF test systems are used for cable and cable sheath testing of medium-voltage cables of up to 50 kV and electrical equipment.* 3 voltage shapes in one device: VLF truesinus, VLF square wave and DC voltage* For medium-voltage cables of up to 50 kV operating voltage* Cable testing, fault conditioning, cable sheath testing
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VLF Test System
BAUR PHG 70 portable
BAUR Prüf- und Messtechnik GmbH
Portable, high performance test generator with VLF truesinus technology. The BAUR PHG 70/80 portable VLF test systems are used for cable and cable sheath testing of medium-voltage cables of up to 50 kV and electrical equipment.* 3 voltage shapes in one device: VLF truesinus, VLF square wave and DC voltage* For medium-voltage cables of up to 50 kV operating voltage* Cable testing, fault conditioning, cable sheath testing
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VLF Voltage Generators
Fivestar HV Testing Equipment Co., Ltd.
VLF hipot is an AC output tester with an output frequency of 0.1 Hz or lower rather than 50/60 Hz. Although the frequency is very low, it is an alternating current with polarity reversals every half cycle.
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VLF Hipot Test Set
HTDP-H
Wuhan Huatian Electric Power Automation Co., Ltd.
Suitable for voltage test items of electrical equipment with large insulation equivalent capacitance.
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VLF Testing and Diagnostics System
PHG 70 TD/PD
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR PHG 70 TD/PD. With the PHG TD/PD, you get a multifunctional cable testing and diagnostics system that was specially designed and developed for medium-voltage networks. The PHG TD/PD system is also the only cable testing and diagnostics system that gives a comprehensive overview of the quality and ageing condition of the test sample. The diagnostic methods TD and PD are mutually complementary, because on one hand you can detect the complete condition and on the other hand locate * individual faults in the operating resources.* High performance VLF truesinus testing device (3 kW) with regulated output voltageCompact, enclosed design in 19" format* Variable installation option with separate control and voltage unit* Variable connection options to cable stations of different models
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VLF Testing and Diagnostics System
PHG 80 TD/PD
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR PHG 80 TD/PD. With the PHG TD/PD, you get a multifunctional cable testing and diagnostics system that was specially designed and developed for medium-voltage networks. The PHG TD/PD system is also the only cable testing and diagnostics system that gives a comprehensive overview of the quality and ageing condition of the test sample. The diagnostic methods TD and PD are mutually complementary, because on one hand you can detect the complete condition and on the other hand locate individual faults in the operating resources.* High performance VLF truesinus testing device (3 kW) with regulated output voltage* Compact, enclosed design in 19" format* Variable installation option with separate control and voltage unit* Variable connection options to cable stations of different models
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VLF Testing and Diagnostics Unit
Frida
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR frida. The portable and powerful high-voltage testing and diagnostics device is used for cable and cable sheath testing of medium-voltage cables up to 20 kV and electrical equipment. Another function is insulation testing on electrical equipment.* Precise and non-destructive determination of the cable condition* Easy and quick test setup* Automatic testing and diagnostic sequences* Compact dimensions and lightweight
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VLF Testing and Diagnostics Unit
Viola TD
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR viola TD. The portable and high performance high-voltage testing and diagnostics device is available in two different configurations:viola: Used for cable and cable sheath testing of electrical equipment and medium-voltage cables up to 35 kV. Another function is insulation testing on electrical equipment. viola TD: Expands the functional scope of viola with the tan delta diagnostics and Monitored Withstand Test (MWT) that combines the cable testing and dissipation factor measurement. This allows for an accurate and comprehensive assessment of the cable condition.* Cable testing and dissiation factor diagnostics in one device* High performance and compact* Easy and quick test setup* Automatic testing and diagnostic sequences
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VLF Testing and Diagnostics Unit
Frida TD
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR frida TD. The portable and high performance high-voltage testing and diagnostics device is available in two different configurations: frida: Used for cable and cable sheath testing of medium-voltage cables and electrical equipment up to 20 kV. Another function is insulation testing on electrical equipment.frida TD: Expands the functional scope of frida with the tan delta diagnostics and Monitored Withstand Test (MWT) that combines the cable testing and dissipation factor measurement. This allows for an accurate and comprehensive assessment of the cable condition.* Cable testing and dissipation factor diagnostics in one device* Easy and quick test setup* Automatic testing and diagnostic sequences* Compact dimensions and lightweight
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KPG 24kV VLF Test Set
Kilovolt Prueftechnik Chemnitz GmbH
The portable cable test set KPG 24kV VLF is used for testing of medium voltage cables in accordance to the standards IEC 60502-2, CENELEC HD 620 & 621, DIN VDE 0276/620 & 621 and IEEE 400.Test is carried out with a low strain practice with VLF (very low frequency) test voltage of preferably 0.1Hz.VLF testing enables detection of damages of insulation within shortest test time.
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Portable High-Voltage VLF Test System
VLF-60
The system is designed for VLF (0.1 Hz) withstand testing of cross-linked polyethylene (XLPE) insulated cables.Integrated Tan Delta (tan δ) measurement module allows to evaluate the general condition of cable insulation according to IEEE 400.2-2013 international standard.
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1μΩ-4kΩ AC Milliohmmeter Low Resistance Tester
TH2521
Shenzhen Chuangxin Instruments Co., Ltd.
TH2521 AC Milliohmmeter is a high-performance and intelligent tester widely used to test contact resistance, internal resistance and battery voltage. The application of constant current source with 1kHz frequency can greatly eliminate the potential error caused by thermoelectricity on DUT. This meter has the function to automatically detect contact failures on test cable. At the range of 30mΩ, basic R resolution can reach 1μΩ. It is applicable for transformer, inductance coil copper resistance, relay contact resistance, switch, connector contact resistance, wire resistance, PCB line and via reistance dan metal defect detection, etc. In the mean time, signals, such as HIGH, LOW, PASS, can be output through HANDLER interface, thus it is very convenient to be used in automatic production line.
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20 GHz Signal Source
VCO Series
The SC5510A and SC5511A are VCO-based, synthesized signal sources with very low phase noise and an amplitude control of 0.01 dB throughout its -30 dBm to +15 dBm output power range. By utilizing a unique multiple phase-locked loop architecture, phase spurs are kept below -70 dBc across the entire tuning range, even at 1 Hz step resolution. Download the data sheet to see how the impressive features and specifications of these modules make them stand out when compared to other small modular synthesizers. These 20 GHz signal sources include an additional, independent RF2 channel with a tunable frequency range from 100 MHz to 3 GHz and a tuning resolution of 25 MHz. The extra channel makes the modules suitable for either single-stage RF conversion systems or dual-stage image suppression up/down converter systems. Both modules make great general-purpose laboratory signal sources where demanding low phase noise and signal purity are required. They are both ideal choices as an integrated clock source for fast DAC and ADC applications, especially those that require variable sampling rates. Full implementation instructions, GUI, driver software, and example code are provided with each module.
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3-AXIS DIGITAL AC GAUSSMETER: 1-200 kHz
IDR-200
Integrity Design and Reseach Corp.
Typical Applications include checking the frequencies and magnetic fields (BW: 1 kHz -200 kHz) produced by equipments such as computer monitors, television sets, video display terminals, induction heaters, industrial, Radar, scientific/medical equipment, walk-through/hand-held detectors and ground wave energy network; etc. For more information about VLF magnetic fields and the VLF gaussmeter , see the paper titled "Very-low-frequency electromagnetic field detector with data acquisition," IEEE Trans. Instrum. Meas.,vol. 58, no. 1, pp. 129-140, Dec. 2008. by S. Hanna.
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3-C Multi-Sensor Broadband Streamer
Sentinel® MS
Sentinel MS is the new member of the industry standard Sentinel product line offering multi-sensor acquisition along with the very best low frequency, low noise, and highest reliability solid streamer available today.
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3-Phase AC Power Source
61700 series
The Chroma Programmable AC Power Source model 61700 series delivers pure, 5-wire, 3-phase AC power. Unlike the traditional 3-phase AC power source, it includes low power rating models at very low cost. Users can program voltage and frequency, measure the critical characteristics of the output on its LCD display. It delivers the right solution to simulate all kinds of input condition of UUT to be utilized in R&D and QA. It is also suitable for commercial applications from laboratory testing to mass productions. The 61700 supplies the output voltage from 0 to 300VAC and it can be set individually for each phase. Users also can set the phase angle from 0? to 360?. These kinds of function make the 61700 series can simulate unbalance 3-phase power. Because of the wide output frequency from 15 to 1200Hz, it is suitable for avionics, marine and military application. The AC+DC mode extends the output function to simulate abnormal situation when power line contains DC offset.
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4210A Rubidium Frequency Standard
Precise Time and Frequency, Inc.
The ptf 4210A Rubidium Frequency Standard is a unique solution for providing a highly stable, low phase noise, frequency reference for applications requiring atomic reference stability performance.The instrument contains a high performance rubidium module, with an extended life design, and very low aging rate, with high quality OCXO o/p for low phase noise.
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60kw off grid power inverter 110/220V split-phase output converter
SDP-60KW
Zhejiang Sandi Electric Co., Ltd
Our SDP series Off Grid Pure sine wave inverter is one of the most advanced DC to AC conversion products in the world, it is suitable use for areas without electricity, vehicles, ships, solar energy, wind turbine and other renewable energy systems and etc, can supply power and provide guarantee effectively for the areas with traffic inconveniences, in the mountains, pastoral, border, island and other areas without electricity. It has the main advantages of high quality sine wave AC output, microcomputer control, humanness design, and it is high efficiency and low no-load loss, and no pollution. The inverter can also supply AC power to all kinds of electric equipment, air conditioners, motors, refrigerators, lights, TV, electric fans and other industrial power supply.1. Using the sixth generation efficient IPM intelligent module from Japanese Mitsubishi, high efficiency and stable performance. It with powerful protection function, the protection for short circuit, over load, over temperature is more safe and reliable. It’s service life can up to 15 years or more.2. Intelligentized, modularized, simple structure design with powerful function.3. Two kinds of start mode: Step-down Voltage Start and Variable Frequency Start. Customers can set start mode according to the type of their load. This function is very convenient for users and also reduce frequency converter’s usage, which reduced the cost of equipment investment, easy to connect wires and control.4. The output frequency can be setting via LCD panel, it’s very convenient for customer.5. The output voltage can be set between -40 % to +20 % of rated voltage. And the output voltage is very accuracy ±1%.6. The DC input voltage range can be set. Over-voltage point, under-voltage point, over-voltage recovery point, under-voltage recovery point all can be setting via the LCD panel.7. Pure sine wave output. With good dynamic response less than 50MS, waveform distortion rate smaller, higher conversion efficiency and stable output voltage.8. Low Frequency Transformer, which ensures that inverter has high efficiency.9. High conversion efficiency, Max. Efficiency≥94%,if 48VDC input,the efficiency can more than 85%.10. Adopts black pure aluminum radiator, which confirms the best radiating performance.11. Powerful data display function. LCD can display the DC input voltage, output frequency, phase voltage, phase current, AC bypass input voltage, output power KWH, time and date, temperature, fault code display.12. Wide input voltage can be set according to customer’s requirement. Input voltage range can be selected from 150-400V or 300-600V or 400-800V.13. Wide input voltage can work without battery and solar charge controller,save more cost and With MPPT wide voltage input function, maximum use of solar power
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7.5 GHz Low Capacitance ÷10/÷20 probe
PP066
The PP066 is a high-bandwidth passive probe designed for the use with the WaveMaster™ and other high-bandwidth oscilloscopes that have 50 Ω input termination. This very low capacitance probe provides an excellent solution for higher frequency applications, especially the probing of transmission lines with 20–100 Ω impedance.
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AC Current Sensor
LFR
The LFR ac current probe has been designed to have market leading low frequency performance, meaning low phase shift and low noise. This compact, low cost, clip-around probe is both flexible and dual-range, and is optimized to give minimal phase measurement error at frequencies from 45Hz to 20kHz and have a very low noise floor.
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AC Hipot Testers
VLF
UDEYRAJ ELECTRICALS PRIVATE LIMITED
Programmable micro-controller• Advanced digital frequency technology• Built-in printer• Portable• AC HIPOT testing of cables and electrical apparatus is now easier than before• UDEY VLF testers are suitable for testing cables, transformers, switchgear, rotating machinery, & other electrical apparatus.
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A Global Standard for Acoustic Absorption Measurements
Alpha Cabin
The Alpha Cabin has been especially designed for the measurement of acoustic absorption properties of materials and components used for the noise insulation of vehicles. The Alpha Cabin is significantly smaller than normal reverberation rooms and therefore ideally suited to use within limited space capacities. The acoustic absorption of the Alpha Cabin itself is also very low: Thanks to the high level of sound insulation, background noise in the frequency range of interest is kept to a minimum.
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Analog Seismic Sensors
Seismometers
Designed to yield the performance needed for scientific studies, our seismometers are used for monitoring long period (very low frequency) signals. These units are often used for earthquake monitoring and for triggering potential alerts during natural disasters such as tsunamis.
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Audio Oscillators
Frequency Range : 10Hz to 1MHz in 5 Decade Steps Very Low Distortion : <0.5% Output Voltage : 22.6Vp-p Open Circuit Sine Wave and Squre Wave Easily Choice Built-in 4 Digits Frequency Counter with Internal/External Varialble Frequency with Poly Varicon 400Hz and 1kHz Fixed Special Function Compact Design and easy Operation 2. Accessories Spare Fuse : 1EA Operator''s Manual : 1EA Power Cord : 1EA BNC Cable : 1EA
