Oersted Technology
Oersted Technology produces an innovative line of magnetics equipment and instruments for use in manufacturing, research, and development applications.
- 971-800-0403
- oersted@oersted.com
- 17475 SW Oak Grove Lane
Hillsboro,, OR 97123
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product
Magnetizer
345B
The Model 300-series magnetizers are designed to handle a variety of magnetizing applications and materials, from small Alnico parts to large blocks of neodymium-iron. Each of these magnetizers feature patented ECS (Electronic Capacitance Switching) technology, which allows the user to change the capacitance of the unit through the front panel. By setting the charging voltage and capacitance of the magnetizer properly, the user can then scale the output energy of the unit to match the magnetizing fixture being used. The 300-series magnetizers also includes a peak current meter, which automatically captures the peak current of the magnetizing pulse once it occurs. A safety circuit internally discharges the capacitor banks if mains power is removed from the magnetizer or if the cabinet is opened during operation. When connected to a suitable magnetizing fixture, the magnetizer is able to disable its front panel controls if the fixture overheats. Other features include a lockout keyswitch and a current sense output jack (this connects to an oscilliscope for viewing of the magnetizing pulse). All 300-series magnetizers can be modified for computer control, photocell trigger, or autocharge operation.
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product
Helmholtz Coils
A Helmholtz coil is actually a pair of specially constructed coils mounted a fixed distance apart on a common base. Current passed through the coils produces an extremely uniform magnetic field in the space between them. For the measurement of magnets, the coils are used in a different manner – they are connected to an integrating fluxmeter, which gives an accurate indication of the overall strength of the magnet when it is withdrawn or rotated a half-turn. If a gaussmeter is used for this purpose, many measurements may have to be made because of local variations of magnetic strength. A Helmholtz coil, on the other hand, measures the entire magnet at once, in a fast, reliable, and easy manner. For this reason, Helmholtz coils are ideal for quality checking of magnet parts after they have been magnetized.
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product
Magnetizer
412B
The Model 412B magnetizer provides many of the features of the Oersted Technology 300-series magnetizers in a small benchtop cabinet. This unit is designed for magnetizing parts which require lower energy levels due to their size or the magnetic material used. Like the 300-series magnetizers, the 412B is an ECS magnetizer, which allows the user to electronically vary the capacitance of the unit. The capacitor banks are internally discharged through a safety circuit in case of power failure or accidental power-down. When the 412B is connected to a properly equipped fixture, the front-panels can be inhibited through an overtemperature interlock circuit, preventing the magnetizer from being operated once the fixture begins to overheat. An external output is also provided for monitoring the magnetizing current pulse with an oscilliscope.
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product
Magnetizer
330B
The Model 300-series magnetizers are designed to handle a variety of magnetizing applications and materials, from small Alnico parts to large blocks of neodymium-iron. Each of these magnetizers feature patented ECS (Electronic Capacitance Switching) technology, which allows the user to change the capacitance of the unit through the front panel. By setting the charging voltage and capacitance of the magnetizer properly, the user can then scale the output energy of the unit to match the magnetizing fixture being used. The 300-series magnetizers also includes a peak current meter, which automatically captures the peak current of the magnetizing pulse once it occurs. A safety circuit internally discharges the capacitor banks if mains power is removed from the magnetizer or if the cabinet is opened during operation. When connected to a suitable magnetizing fixture, the magnetizer is able to disable its front panel controls if the fixture overheats. Other features include a lockout keyswitch and a current sense output jack (this connects to an oscilliscope for viewing of the magnetizing pulse). All 300-series magnetizers can be modified for computer control, photocell trigger, or autocharge operation.
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product
Magnetizer
350B
The Model 300-series magnetizers are designed to handle a variety of magnetizing applications and materials, from small Alnico parts to large blocks of neodymium-iron. Each of these magnetizers feature patented ECS (Electronic Capacitance Switching) technology, which allows the user to change the capacitance of the unit through the front panel. By setting the charging voltage and capacitance of the magnetizer properly, the user can then scale the output energy of the unit to match the magnetizing fixture being used. The 300-series magnetizers also includes a peak current meter, which automatically captures the peak current of the magnetizing pulse once it occurs. A safety circuit internally discharges the capacitor banks if mains power is removed from the magnetizer or if the cabinet is opened during operation. When connected to a suitable magnetizing fixture, the magnetizer is able to disable its front panel controls if the fixture overheats. Other features include a lockout keyswitch and a current sense output jack (this connects to an oscilliscope for viewing of the magnetizing pulse). All 300-series magnetizers can be modified for computer control, photocell trigger, or autocharge operation.
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product
Magnetizer
340B
The Model 300-series magnetizers are designed to handle a variety of magnetizing applications and materials, from small Alnico parts to large blocks of neodymium-iron. Each of these magnetizers feature patented ECS (Electronic Capacitance Switching) technology, which allows the user to change the capacitance of the unit through the front panel. By setting the charging voltage and capacitance of the magnetizer properly, the user can then scale the output energy of the unit to match the magnetizing fixture being used. The 300-series magnetizers also includes a peak current meter, which automatically captures the peak current of the magnetizing pulse once it occurs. A safety circuit internally discharges the capacitor banks if mains power is removed from the magnetizer or if the cabinet is opened during operation. When connected to a suitable magnetizing fixture, the magnetizer is able to disable its front panel controls if the fixture overheats. Other features include a lockout keyswitch and a current sense output jack (this connects to an oscilliscope for viewing of the magnetizing pulse). All 300-series magnetizers can be modified for computer control, photocell trigger, or autocharge operation.
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product
Fluxmeter
480
The Model 480 is a laboratory grade fluxmeter, for use with a Helmholtz coil or custom search coils. This instrument measures the total flux of a magnet part, which can be related to the magnetic field strength. Applications include magnet testing, magnetizing, and automated field measurement. In order to provide accurate and repeatable measurements, automatic or manual drift compensation is available to the user. A peak mode allows even the fastest magnetic pulse, such as those from a magnetizer, to be accurately measured. The Model 480 is also useful for measuring AC fields that are too high in frequency for a gaussmeter to detect. Relay outputs and an external reset input allow for simple automation functions to be implemented, while the RS232C and IEEE-488 ports permit advanced control of the fluxmeter via a remote computer or automation equipment.
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product
Gaussmeter
460
The Model 460 is a 3-channel, high-resolution gaussmeter, for use with single or multi-axis probes. It is capable of measuring magnetic fields from 0.001 Gauss to 300kGauss, with a DC accuracy +/- 0.10%. This unit is designed for demanding applications, such as material analysis and field mapping, where low-noise, high-resolution magnetic measurements are necessary. Measurements of AC and DC magnetic fields are shown in Gauss or Tesla on the two-line vacuum fluorescent display. The Model 460 features RS232C and IEEE-488 ports, allowing the instrument to be controlled via a remote computer or automation equipment. The Model 460 can be used with a 3-axis probe or with three separate single-axis probes, effectively providing three Model 450 gaussmeters in one instrument. Probes are sold separately, and are available in a wide range of constructions.
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product
Gaussmeter
421
The Model 421 is a benchtop, laboratory gaussmeter, capable of measuring magnetic fields from 0.001 Gauss to 300 kGauss (measurement range is dependent on probe used). This unit is well-suited to magnet testing, quality assurance, and other applications requiring highly repeatable magnetic measurements. Measurements of AC and DC magnetic fields are shown in Gauss or Tesla on the two-line vacuum fluorescent display. A Sort function allows magnet parts to be quickly checked on a pass/fail basis, while the serial port enables the gaussmeter to be controlled by a computer or automation equipment. A hall-effect gaussmeter probe is included with the Model 421, and may be selected from an extensive line of probe constructions.
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product
Gaussmeter
450
The Model 450 is a high-resolution, laboratory gaussmeter, capable of measuring magnetic fields from 0.001 Gauss to 300k Gauss (measurement range is dependent on probe used). This unit is designed for demanding applications, such as material analysis and field mapping, where low-noise, high-resolution magnetic measurements are necessary. Measurements of AC and DC magnetic fields are shown in Gauss or Tesla on the two-line vacuum fluorescent display. The Model 450 features RS232C and IEEE-488 ports, allowing the instrument to be controlled via a remote computer or automation equipment. A hall-effect gaussmeter probe is included with the Model 450, and may be selected from an extensive line of probe
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Conditioners And Demagnetizers
A conditioner is a device that is used to selectively adjust the magnetic strength of a part to a specified value. In the past, conditioners have been used to simply “knock-down” the magnetic field of low-coercivity magnet parts (such as alnico and ferrite) until a certain field level was achieved. The resulting part was slightly weaker, but had a field strength that was repeatable.
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product
Gaussmeter
410
The Model 410 is a hand-held, battery-powered gaussmeter capable of measuring magnetic fields from 0.1 Gauss to 20kGauss, with an accuracy of ±2%. An axial or transverse probe is included, which mounts directly onto the top of the gaussmeter.
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Automated Systems
A conditioner is a device that is used to selectively adjust the magnetic strength of a part to a specified value. In the past, conditioners have been used to simply “knock-down” the magnetic field of low-coercivity magnet parts (such as alnico and ferrite) until a certain field level was achieved. The resulting part was slightly weaker, but had a field strength that was repeatable.
