Coil
One or more spiral turns of a conductor.
See Also: Helmholtz Coils, Coil Turns, Rogowski, Impulse Winding Testers, Transformer, Inductor
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Product
Transformer Winding Resistance Meters
TWA Standard Series
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The TWA standard series instruments are designed to measure the resistance of six coils and simultaneously analyze the three-phase tap changer on load of the primary and secondary transformer coils (provided by model TWA40). This is done in a single cable configuration, with test currents up to 40A. Each transformer configuration has a special measurement algorithm that is optimized for rapid stabilization of test results. The TWA instruments generate a true DC current without ripple. Both current injection and magnetic circuit energy discharge are automatically regulated.
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Product
1μΩ-4kΩ AC Milliohmmeter Low Resistance Tester
TH2521
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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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Product
High Voltage Insulating Diagnosis Systems
DAC-6017
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It can measure and diagnose the insulating characteristic of winding coils of high voltage electric motor, generator, and etc.It also makes possible to build in-vehicle type or stationary type in accordance with the application.
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Product
Ultra High Density 4mm Reed Relays
122-1-A-5/2
Reed Relay
Single Pole Reed Relays0.5 Amp switchingVery high packing densityStacking on 4mm x 4mm pitch1 Form A5 V Coil
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Product
Helmholtz Coils
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Helmholtz coils is a candidate test apparatus for low frequency magnetic field susceptibility testing on military equipment and subsystems. Use of this coils reduce electromagnetic compatibility (EMC) qualification tests time, and subject the equipment under test (EUT) to a relatively uniform field.
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Product
Surge Tester
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Qingdao AIP Intelligent Instruments Co., Ltd
Surge tester able to test various coils, motor, stator winding, relay/contactor coil, electric magnetic valve coil etc. and can be applied for maintenance, production line, lab and QC etc. Extension: single surge test or multiple tests options.Large storage: up to 1000 test groups can be established.Automatic determine: manual or auto test mode options and test results would be determined automatically.Support both touch screen and numeric keyboard operating.Data analysis: data can be exported in CSV format by USB flash drive.Surge determine items: area, area difference, corona, and phase.100MHz sampling frequency.3KV and 5KV voltage options.Voltage closed loop feedback ensures test precision.User permission management.Support MES connection (manufacturing execution system).
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Product
Towing Dynamometer
RS-40K
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RS-40K towing dynamometer is designed for testing today’s DOT Vehicles (Classes 5 and 6) which include trucks and buses. The RS-40K is built with a heavy-duty steel frame, industrial axle and rides on an air ride suspension. The RS-40K is designed to maintain 40,000 Newtons of constant drawbar force and the ability to simulate an uphill slope of 25%. The dyno uses eddy current absorbers with special high temperature coils. The power is provided by an industrial generator. Testing is unlimited at lowspeeds.
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Product
Inline Measuring System
EBA
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The measuring system consists of a measuring and processing unit together with a double yoke system with all the required coils (exciting coil, secondary coil, tangential field coil). The double yoke system is installed in the production line. The material to be measured is fed through this unit.
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Product
Analyzers and Timers
CAT Advanced Series
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Description The Advanced CAT Series Analyzers and Timers are stand-alone or PC-controlled digital instruments for circuit breaker status evaluation. Timing channels record arc closing and opening, resistance and auxiliary contacts. The main contact channels can also measure the resistance value of pre-insertion resistors (if present in the breaker). The advanced CAT series records graphs of the opening and closing coil currents and the movements of the moving parts of the high and medium voltage circuit breaker. Test results are printed on the 112 mm (4.4 inch) thermal printer (optional accessory) in tabular and graphical form. The advanced CAT series provides easy selection of different operating modes:
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Product
Selenium Surge Suppressor
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Surge suppressors are used to protecting circuits from transients (sudden, brief increases in voltage). Transients of widely varying magnitudes are caused by such circuit components as motors, coils, magnets, relays, and transformers. They are found in all electrical systems and are notorious for damaging diodes, SCRs, transformers, triacs, and relay contacts.
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Product
Ultra High Density 4mm Reed Relays
120-1-A-5/1
Reed Relay
Single Pole Reed Relays0.5 Amp switchingVery high packing densityStacking on 4mm x 4mm pitch1 Form A5 V Coil
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Product
Mini Receiver
FB7-NX
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In about 1935, the National Radio Company of Malden, Mass., brought out a “hot” high frequency receiver, called the FB7, and the subsequent FB-7X. It featured a super-hetrodyne design with plug-in coils that gave it a broad frequency range. The “X” model also incorporated a crystal filter in the intermediate frequency section, thus giving it additional selectivity. The receiver was viewed by radio amateurs as a technological breakthrough, and it was also used commercially for point to point high frequency communications. As the receiver did not have an internal RF amplifier section, a separately tunable RF amplifier was later provided in a separate enclosure for additional performance capabilities. Now, National RF, Inc., is resurrecting the fabled receiver name with an all solid-state, hot mini receiver, which also utilizes plug-in coils to cover the HF spectrum. The mini-receiver is designed for use by radio amateurs as well as serious short-wave listeners, and allows reception of AM, CW, and SSB signals. It incorporates a super-hetrodyne design with a dual gate FET built-in RF preamplifier and a ceramic filter for selectivity, often required when used in a crowded amateur radio band. In addition, the receiver has a buffered rear panel output of the high frequency oscillator for use with either a frequency counter for exact receive frequency display, or for interface with an outboard transmitter. A rear panel jack is also provided for muting the receiver when a transmitter is placed into the transmit mode. And, the receiver is small enough to fit into carry-on luggage and taken on trips when it is desired to “keep an ear” on amateur radio or other high frequency activity. The receiver utilizes rear panel plug-in coil assemblies which contain the RF amplifier, mixer, and oscillator tuned circuits. Each plug-in coil assembly also comes with a separate dial scale, which is inserted onto the front panel for displaying the tuned frequency. A very smooth 6 to 1 planetary drive is used for tuning the receiver. Other front panel controls include RF preamplifier peak, volume control, Beat Frequency Oscillator adjustment, and RF gain control. Other switches include filter bandwidth, AM/CW/SSB selection, Power, and a general coverage/band spread control for certain plug-in assemblies. The receiver is intended to drive head-phones via a rear panel jack, but has sufficient output to drive a small external speaker.
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Product
Coil Spring Tester 5,000 lb
100059
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Handles Flat/Coil-Over Springs up to 6" (150mm) in Diameter & 18" (457mm) High
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Product
Shorted Turns Tester for Bobbin Wound Coils
Model STT-4
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International Electro-Magnetics, Inc.
The STT-4 Shorted Turns Tester offers a quick and easy means to detect shorted turns in bobbin coils. It is a non-stress and non-contact test.
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Product
Single-in-Line Reed Relays
Series 115
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SoftCenter construction Highest quality instrumentation grade switches Plastic package with internal mu-metal magnetic screen They take up the minimum of board area, conservingboard space Insulation resistance greater than 1E12 Ohms 100% tested for dynamic contact resistance for guaranteed performance 5 or 12 Volt coils with optional internal diode
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Product
Flex Clamp Meters
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Flex Clamp Current Probes expand existing meters. Compatible with most meters using universal banana leads. Flexible Coil adds accessibility - easily maneuvering around cables that are in hard to reach areas and large enough to thread around larger conductors.
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Product
Economic Type Resistance Indicator
CS1-RS
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CS1-RS economic type Resistance Indicator has been designed with high accuracy measurement, display and communication of Ohm(2 wire) as like as Coil of motor or transformer.The meter supports Field Calibration function. It can be calibrated with sensor (Resistance) to meet machinery structure.They are also available 1 option of 1 Relay outputs, 1 Analogue output or 1 RS485 (Modbus RTU Mode) interface with versatile functions such as control, alarm, re-transmission or communication for a wide range of machinery and testing equipments applications.
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Product
Fluxmeters
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Flux meter has been the established standard for the measurement of magnetic flux density for determining total flux in a magnet or magnetic assembly. Its use was curtailed except in a few specialized areas because of many factors such as the difficulty in setting up light beam flux meter or ballistic galvanometers, limitations on the ohmic resistance of search coils, the requirement of some degree of operator skill in reading the flux meter etc. The development of the integrating type Digital Flux meter has virtually cancelled the hitherto negative aspects of fluxmeterology and has found a broad niche for many magnetic measurement applications.
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Product
Fluxmeters
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Hirst Magnetic Instruments Ltd
Fluxmeters measure the total magnetic flux in a volume contained within a coil (such as a Helmholtz coil) whereas a gaussmeter measures the total flux density at a point where the probe is located.
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Product
Rogowski AC Current Probe
RCP500
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Shenzhen Micsig Instruments Co., Ltd.
Adopts the Rogowski coil current measurement system: within the range, the output signal of the system and the current signal to be measured are always linear, so the accuracy will not change with the current; The RCP500 measures AC current up to 500A pk, minimum to 200mA pk, with bandwidth ranging from 15Hz to 300KHz, 1% accuracy, and has less than 2mV noise. Directly powered by Micsig UPI interface, realise auto scaling setup,
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Product
Towing Dynamometer
RS-125K
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RS-125K towing dynamometer is designed for testing Class A trucks and is the most full-featured, reliable and accurate towing dynamometer in the industry. The RS-125K is built with a heavy-duty steel frame, heavy-duty industrial axles and rides on an air ride suspension. The RS-125K is designed to maintain 125,000 Newtons of constant drawbar pull and the ability to simulate an uphill slope of 25%. The towing dyno uses absorbers with special high temperature coils powered by an industrial generator so there are no lead-acid batteries to charge and testing is unlimited at low speeds
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Product
Probes
RTD
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No matter the application, ThermoWorks has a probe for you: penetration probes, immersion probes, air probes, surface probes, wire probes, even specialized probes like griddle probes, burger probes, pipe clamp probes, and probes for medical and lab use. Choose from standard tip, reduced tip, corkscrew tip, alligator clip, or needle probes; different handle types; and straight, coiled, stainless overbraid or even armored cables. Sensor types include type T or type K thermocouples, RTD sensors and our Pro-Series® line of thermistor probes.
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Product
Mechanical Shock Test System
BW-MST-E5000
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The Mechanical Shock Tower develops the kinetic energy electromagnetically. An iron core "bullet" is attracted to the magnetic core of the solenoid by the dense magnetic field that is created as current flows through the field coil of the shock tower. As the bullet is drawn into the center of the magnetic field the acceleration increases exponentially as the gap reduces to zero on impact causing the high impact shock
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Product
S Series Panel Meter
ST-100
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Standard Electric Works Co., Ltd
● DC up to 50A● AC up to 50A● Case and Composition: Acrylic resin front and Bakelite case. Four studs mounting.● Accuracy : Moving coil type：Class 2.0 Moving lron type：Class 2.5 Rectifier : Class 2.0● Color：Black case. white scale plate.● Pointer：Tube or knife-type, color in black or red.
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Product
Powder Brake Dynamometers
PB Series
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The Powder Brake Dynamometer (PB Series) contains, as its name suggests, a magnetic powder. The electrical current passing through the coil generates a magnetic field, which changes the property of the powder, thus producing a smooth braking torque through friction. They are ideal for applications operating in the low to middle speed range or when operating in the middle to high torque range. Like Hysteresis Brakes, Powder Brakes provide full torque at zero speed. Like the Eddy-Current Brake Dynamometers, the PB series are water-cooled, allowing for power ratings up to 48 kW. The PB Dynamometers have accuracy ratings of 0.3% to 0.5% full scale ( 2% for PB 2.7), depending on size and system configuration. Additional mounting possibilities include speed pickup and OEM version IS.
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Product
Magnastick
MSL
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The Magnastick™ MSL™ magnetometers seeks ferromagnetic objects by sensing their magnetic fields. Dual toroidal sensor coils are highly sensitive to the magnetic lines of flux naturally present in ferrous (iron) materials and are not affected by non-ferrous materials such as brass, aluminum, or copper.
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Product
S Series Panel Meter
ST-670R
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Standard Electric Works Co., Ltd
● DC up to 10A● Case and Composition: Acrylic resin front and Bakelite case Two studs mounting● Accuracy : Moving coil type：Class 2.0 Moving lron type：Class 2.5 Rectifier : Class 2.0● Color：Black case. white scale plate.● Pointer：Tube or knife-type, color in black or red.
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Product
Precision Micro-Ohmmeter
4176
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Best-selling Valhalla 4176 ohmmeter measures transformers, coils, and shunts the competition can’t. The 4176 provides ultra-stable low-resistance measurements.
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Product
J-compensated Surrounding Coils
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With incorporated field coils. For plotting B-H (J) hysterese curves at room temperature. The following types are available: JH 6-2, JH 10-1, JH 15-1, JH 20-1, JH 26-1, JH 42-1, JH 66-1, JH 42-2 and JH 66-2.
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Speed Pick-up
SU63
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The Validyne SU63 is an AC inductive speed pick-up used for RPM measurement on high-speed rotating equipment. The SU63 is a tightly-wound coil with a laminated core that can be conveniently mounted on rotating equipment so that the magnetic field of a magnetized nut or part passes through the coil windings. The moving magnetic field produces a voltage within the coil proportional to its rate of change and the strength of the permanent magnetized part. The frequency of this inductive voltage spike is fed into an oscilloscope or counter to determine RPM.
