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Hysteresis
See Also: Hysteresis Loop, Hysteresis Graphs, Hysteresis Curve, Magnetic Permeability
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Hall Effect Sensor Elements/ICs
ChenYang Technologies GmbH & Co. KG
is a sophisticated Hall Effect Gear Tooth IC featuring an on-chip 12-bit A/DConverter and logic that acts as a digital sample and hold circuit. A separate 6-bit D/A converterprovides a fixed hysteresis. The sensor does not have a chopper delay. It uses a single Hall platewhich is immune to rotary alignment problems.
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Electromagnet System
Dr. Brockhaus Messtechnik GmbH & Co. KG
Electromagnet systems with different power levels to produce homogeneous magnetic fields. Usable for calibration of sensors, testing of magnet systems and Hysteresis measurement. Adjustable air gap from 0 up to 60 mm. Field strength in the air gap up to 3 Tesla. Software program for control and evaluation.
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Signal Generator
8002
25C, hysteresis eliminated. To within 10 MHz of the final frequency. Normal switching mode, SSB phase noise will be degraded in the fast switching mode.
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Magnet Tester
MP
Computer aided measuring desk for automatic measurement of hysteresis loop of hard magnetic materials. Use pole pieces with integrated measuring coils, or J-compensated surrounding coils.
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Power Supply
5200
The Model 5200 is a basic unregulated power supply that is designed for use with Magtrol's Hysteresis Brakes and Clutches. The 5200 is available in either 12, 24 or 90 VDC voltages, corresponding to the available hysteresis brake/clutch coil voltage options. Braking control is enabled via a 10-turn potentiometer and adjustment knob located on the front panel.
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Digital I/O Board
3512
The 3512 is an eight channel non-isolated digital I/O board with +5V tolerant 74LCX14 inputs with hysteresis and +3.3V CMOS 74LVTH125 driven outputs. Each I/O line features a series 10 ohm damping and protection resistor and a 4.7K pull up resistor to +3.3V. On power up the outputs are tri-stated, and can then be enabled on a bit by bit basis. Output high drive is 32mA @ 2.0V minimum. Output low drive is 32mA @ 0.8V maximum.
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Self Contained Analog Output Displacement Sensors
SC-2440
* Self-contained electronics* Built-in temperature sensor* Fixed gain output* Reverse polarity and short circuit protection* No calibration required* Low cost* Excellent performance with ferrous targets* Variable voltage input from 15 to 30 volts DC* Compact and rugged, IP-67* Extremely low hysteresis
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Ferroelectric Test System
RT66B
Radiant's Rt66B offers amazing performance at an affordable price. The Rt66B is a perfect entry level system for measuring Ferroelectrics. This system does include Radiant's famous Vision Data Management System which offers all the standard measurements of ferroelectrics including Hysteresis, Fatigue, Waveform, C/V, I/V, PUND and much more.
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AC Hysteresis Graph Test System
DX-2012M
Automatic measurement of the dynamic magnetic hysteresis loop of oriented and non-oriented silicon steel under the condition of 50 Hz, 60 Hz, 400 Hz and 1 kHz, accurate measurement of the static magnetic characteristic parameters such as amplitude permeability μa, loss angle δ, specific total loss Ps, remanence Br and coercivity Hc. With special testing fixture, it can directly measure the iron core and stator core of the transformer.
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Absolute Optical Inclinometer
A2T
The A2T is a single axis, digital gravity angle sensor. The A2T serves as a full 360 range absolute tilt sensing programmable level with either digital or analog output. Internally, a rotary bar coded disk is mounted to a weighted gravity driven wheel. A micro-controller strobes an LED to transfer the bar code image onto an optical linear array, then decodes the position every 2 mSec. Magnetic damping provides fast response and settling time while virtually eliminating overshoot and oscillations. An internal EEPROM stores field programmable parameters such as resolution, zero position, direction swap, and mode. This second generation design virtually eliminates the primary accuracy limitation of first generation inclinometers, which is sitation (hysteresis).
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Vibrating Sample Magnetometer
VSM
The VSM (also named M-H CURVE Hysteresis Graph TEST SYSTEM ) can be used for the measurement of the basic magnetic properties of the magnetic materials. Such as the Hysteresis loops of the materials, Magnetization curve, Warming Curve , Warming /Cooling curve, Cooling curve and the changes of the temperature as time goes away , then we will get some Magnetic parameters such as the Saturated strength of the magnetization, the left strength of the magnetization , Coercive force, the Max of Magnetic energy product,the Curie temperature and the Magnetic conductivity(the Initial Magnetic conductivity is included ). It can also measure the magnetic materials such as the powder, the particles, the films, the liquid and the massive.
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Ferroelectric Test System
LCII
Precision LC II is an affordable Ferroelectric Tester for research labs. This system offers 5Khz at 9.9V and also comes in a built in 10V, 30V, 100V, and 200V option. This unit can also be expanded to 10kV for bulk ceramic testing. Vision Software is provided with the LCII Test System. Vision uniquely allows the user to construct complex or simple programs with any number of tests to characterize all aspects of the sample in one execution while keeping track of the measurement results and the history of the sample being tested. Tasks such as Hysteresis, I/V, C/V, PUND, Waveform, Magnetoelectrics, Piezoelectrics are just a few features to choose from.
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Pressure Switches
NOSHOK offers a wide selection of mechanical and electronic pressure switches, including low pressure, compact switches with 1 SPST N.O. or N.C contact, as well as RoHS compliant SPDT pressure switches with adjustable hysteresis. These switches are ideal for use in hydraulic systems including mobile hydraulics, as well as pneumatic systems, power generation, industrial machinery or machine tools, pumps & compressors and more.
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Stress Hysteresis in vacuum or gas up to 900C
900 Series
Stress Hysteresis in vacuum or gas up to 900C for the study of annealing cycles.Thermal Desorption, Film Shrinkage, Reflectivity, and Resistivity options provide additional insight to causes of material changes with temperature.
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Transformer Performance Tester
6691
applying ±90V voltage on the winding of the transformer demagnetized and get the voltage value on the terminal and the current value in the winding to draw the hysteresis characteristic curve. This method can be used for linear quantitative analysis of residual magnetism in transformers, and fast demagnetization can be achieved by tracking hysteresis curves. The analyzer can measure magnetism residual rate before and after demagnetization.
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Materials Test System
ModuLab XM MTS
I-V (voltage scans with current measurement - used to characterize electronic and dielectric materials)P-E (polarization / electric field - used to run hysteresis tests to characterize ferroelectric materials) High-speed pulse (used to activate charge carriers in electronic and dielectric materials)Staircase and smooth stepless analog ramp waveformsImpedance, admittance, permittivity / capacitance, electrical modulusC-V capacitance - voltage, Mott-SchottkyAutomatic sequencing of time domain and impedance/capacitance measurements
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Hysteresis Graph
MAGNET-PHYSIK Dr. Steingroever GmbH
The measurement of magnetic material parameters using hysteresis graphs is of utmost importance for both material manufacturers and users. Discover the hysteregraphs from MAGNET-PHYSIK in Cologne.
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DC Hysteresis Graph Test System
DX-2012H
Automatic measurement of the demagnetization curve of permanent magnetic material such as ferrite, AlNiCo, NdFeB, SmCo, etc. Accurate measurement of the magnetic characteristic parameters of remanence Br, coercive force HcB, intrinsic coercive force HcJ and maximum magnetic energy product (BH)max.
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Non-Contact High-Precision Proximity Measuring System
KD-2446
* Outstanding precision: static resolution to 12 microinches* Excellent performance with ferrous targets* Variable voltage input from 12 to 24 volts DC* Compact rugged electronics and sensors* Adjustable gain for up to 22 volts output (with 24 Vdc input)* Temperature tolerant sensors (to 400°F)* High speed (10 KHz) level adjustable switched output for process control* Very low switching hysteresis, < 1% on ferrous targets* RoHS compliant
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Dynamometer Test Systems
Genuen provides a full range of off-the-shelf and custom dyno test cell solutions. We offer turnkey test cell integration services and test cell upgrades and modernization for all types of dynamometers used in automotive, aerospace, industrial, commercial, off-highway, and agricultural markets. Our broad-based expertise includes dynamometer test systems ranging from AC motor, hydrokinetic, hydrostatic, electric AC/DC, eddy current, and hysteresis brake.
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HyMAC Magnetic Properties Tester
Metis Instruments & Equipment NV
The HyMAC Magnetic Properties Tester is a versatile instrument for determining the AC magnetic properties of soft magnetic steel sheets and ferrite cores. The basic functionality of the instrument is that of a hysteresis graph: the measurement of the B-H hysteresis curves.
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Automatic Hysteresis Graph Test System
DX-4DMT
X-4DMT automatic hysteresigraph system accords with the standard permanent magnet test system, GB3217-92, used to measure the major and minor hysteresis loops, demagnetization curves, recoil hysteresis loops and initial magnetization curves in different temperature of ferrite, AlNiCo, SmCo, NdFeB and quenched material, and gives the magnetic parameter, Br, Hcb, Hcj, (BH)max, Hk and so on, and could meet different requirements on test function, precision, power capability, reliability, efficiency, price, local environment from laboratory to enterprise's production line.
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Digital Input/Output Card
IOD-144
This is a 144-bit full-size card. A Programmable Peripheral Interface chip, type 8255-5 provides three 8-bit ports (A, B, and C) for each 24-bit group. Each port can be independently programmed for either input or output. Port C can also be configured as two 4-bit ports. These cards fully implement Mode 0 of the 8255 PPI chip. (Consult the factory if you desire to operate in Mode 1.) Type LS245 bi-directional transceivers sink 24 mA (optionally 64 mA) and source 15 mA. These transceiver buffers provide hysteresis correction on inputs and added drive capability on outputs. The direction of the transceivers is set by software.
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Ferroelectric Tester
Premier II
The Precision Premier II, is one of Radiant's most advanced test systems. The Premier II has the large envelope in terms of frequency response, voltage range, and accuracy of any ferroelectric tester in the world. Vision Software is provided with the Premier II Test System. Vision uniquely allows the user to construct complex or simple programs with any number of tests to characterize all aspects of the sample in one execution while keeping track of the measurement results and the history of the sample being tested. Tasks such as Hysteresis, I/V, C/V, PUND, Waveform, Magnetoelectrics, Piezoelectrics are just a few features to choice from.
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Hysteresis Dynamometers
HD Series
16 Standard Models with Maximum Torque from 2.5 ozin to 500 lbin (18 mNm to 56.5 Nm)Hysteresis Braking System: Provides precise torque loading independent of shaft speedMotor Testing from No Load to Locked RotorAccuracy: 0.25% to 0.5% (Full Scale)Air Flow Sensor: For protection against overheating and operator errorStandard Torque Units: English, Metric and SIBase Plate: Available in long or short versionsCustom Dynamometers: for special torque and speed requirementsEasy Calibration
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Soft Iron Tester
WP2
Computer aided measuring set for automatic measurement of the hysteresis loop of soft magnetic materials. Allows measurement of workpieces with different length and cross sections.
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Powder Brake Dynamometers
PB Series
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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Electromagnets
The Lake Shore electromagnets (EM-V Series) produce magnetic fields with a variety of indexed air gap and pole cap configurations. The EM-V Series is ideally suited for integration into customer-designed magnetic test platforms for applications including magneto-optical studies, magnetic hysteresis studies, in-line annealing, Hall effect studies, susceptibility measurements, spin magnetic resonance demonstrations, and biological studies.
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Magnet Tester
H30 Series
AlmiCo, Ferrite, NdFeB, SmCo5, Sm2Co17 magnets are tested and their B-H and MH loops are plotted using Ferrites India make H30 Series hysteresis loop tracers. The complete system consists of a magnetizer to magnetize the test piece, an electromagnet and a BH Loop Plotter. Magnets with coersivity as high as 13 kOe and more can also be tested.
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DC Hysteresis Graph
DX-2012SD
Automatic measurement on basic magnetization curve and magnetic hysteresis loop under static state of soft magnetic material, accurate measurement on static magnetic characteristic parameters such as initial permeability µi, maximum permeability µm, saturation magnetic induction Bs, remanence Br, coercive Hc and hysteresis losses Pu.
