Hysteresis
See Also: Hysteresis Loop, Hysteresis Graphs, Hysteresis Curve, Magnetic Permeability
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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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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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High Precision Canister Load Cell
Model 2000 Series
The Model 2000 Series High Precision Canister Load Cell was designed to accurately and precisely measure force, which many other quantities such as torque, thrust, and pressure are based, for aerospace applications. The Model 2000 Series, available with load measurement capacities up to 750K lbf, offers high performance and linearity and very low hysteresis. ±0.02% FS Hysteresis
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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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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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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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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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Precision Barometric Transmitters
HD9408.3B… Series
HD9408.3B is a barometric transmitter that uses a piezoresistive high accuracy and temperature-compensated sensor. It allows to measure the atmospheric pressure in the range from 500…1200 hPa, providing extreme accuracy and time stability, with excellent repeatability, low hysteresis, and excellent temperature behavior.
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Stress Hysteresis Measurement
500 Series
Stress Hysteresis Measurement up to 500C for thermal property and stability tests of thin films in air.Non-Contact Laser Scanning Technology.
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Arbitrary Function Generator
HMF2525/HMF2550
Powerful pulse generator Provides pulses with a recurrence rate of up to 12.5 MHz/25 MHz; the pulse width can be set from 15 ns to 999 s with a resolution of 5 ns. Rise/fall time can be selected from 8 ns to 500 ns – a very useful feature when characterizing input hysteresis of semiconductor devices Easily create arbitrary waveforms Arbitrary waveforms can be developed with PC software. Stored waveforms can be loaded via front USB port or imported via the complimentary HMExplorer software (available for download)
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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.
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Hysteresis Loop Tracer
MESA
The MESA is the only hysteresis loop tracer on the market that can make measurements in the frequency range of 10 Hz and below. Competing units operate with more-easily generated 60 Hz drive fields, and can have errors of as much as 30% in coercivity (Hc) measurements.
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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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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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High-Dynamics PIMag Linear Stage
V-522 • V-524 • V-528
Physik Instrumente GmbH & Co. KG
Reference-class linear stage. Linear positioning stages with magnetic direct drives largely dispense with mechanical components in the drivetrain and the drive force acts directly on the motion platform. Together with precision bearings, a high travel accuracy and longer lifetime is achieved. The linear positioning stages are particularly suitable for scanning applications. PIMag® Voice Coil. Voice coil drives consist of 2 essential components: A permanent magnet and a coil, which is located in the air gap of the magnetic field. When current flows through the coil, it moves in the magnetic field of the permanent magnet. The direction of motion depends on the polarity. Thanks to their low weight and friction-free drive principle, voice coil drives are particularly suitable for applications, which require high dynamics and high velocities at limited travel ranges. High scan frequencies and precision positioning are also possible with these drives, because they are free of the effects of hysteresis.
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Trip Amplifiers
Datexel manufacture a large range of Trip Amplifiers and Process Limit Alarms that accept universal inputs and provide either relays or NPN or PNP transistor outputs. The DAT5028 is also an isolated signal converter and has a local display with up to 4 relays and is DIP switch programmable. The inputs can be Thermocouples, RTD, mV, mA, Resistance, Potentiometers or Voltage. They can be supplied fully configured set up by PC or DIP switches. The DAT5024 is a trip Amplifier / Temperature limit alarm for RTD's, Thermocouples, Voltage, Resistance and Current with the option of 1 or 2 relay outputs hysteresis and delay timers. The DAT5024 E range is an economical choice with DIP Switch programmable for voltage or current input. Either 1 relay or 2 relays (SPDT) are available with delay timers.
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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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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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AC Hysteresis Graph Test System
DX-2012SA
Under continuous frequency of 1 kHz to 500 kHz, automatic measurement of magnetic hysteresis loop of the soft magnetic materials such as silicon steel, precision alloy, non-crystal and ferrite, accurate measurement on the dynamic magnetic characteristic parameters such as amplitude permeability µa, loss angle d, loss iron Pc, remanence Br and coercivity Hc.
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X Band Coupler With Dual Output Threshold Detector
The X Band coupler with dual output has an input power range of either -5 to +10 dBm, or +5 to +20 dBm. Covering 8.0 to 9.5 GHz, insertion loss is less than 1.0 dB and VSWR is 1.5:1. The coupler/detector has two external resistors providing independently settable threshold TTL outputs. The power flatness is ~0.4 dB and hysteresis is 0.1 dB. Cougar can provide this function in other frequency ranges and input power ranges.
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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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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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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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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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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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Open Optical Encoders
An optical encoder is an electromechanical device which produces an electrical signal output proportional to the linear displacement of a linear guide or the angular position of an input shaft.Open encoders are exposed and feature no external integrated enclosure. The advantages of open optical encoders include the effective elimination of backlash, shaft wind-up (torsion) and other mechanical hysteresis errors.A rotary open optical encoder consists of a position measurement readhead and an accurate rotary scale marked either on the periphery of a ring or on the face of a disc.The readhead measures position by optically sensing the regularly-spaced scale markings and outputs this information as an analogue or digital signal.The signal is subsequently converted into a position reading by a digital readout (DRO) or motion controller.
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Power Amplifier
5241
The Model 5241 is a voltage-controlled power amplifier designed exclusively for Magtrol's Model HD-825 Hysteresis Dynamometer. Because of its double braking system, the HD-825 requires more than 4 amps of power in order to reach full torque. The 5241 (which can provide up to 5 amps of output current) is necessary in order to amplify the power between a 6200 or DSP6001 Controller (which both have a maximum current output of 1 amp) and the HD-825 Dynamometer.
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PMC-Serial
The PMC-Serial is capable of providing multiple serial protocols, both synchronous and asynchronous with a wide range of baud rates. The PMC-Serial has up to 8 UART channels, and two SCC channels. The protocol processors are complemented with a variety of IO which can be selected as a build option. RS-232, RS-485, RS-422, and RS-423 are supported. Two enhanced hysteresis MIL STD 188-114A receivers, and two open drain active low output drivers are also provided.
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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.
