US3838263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analog function generator with magnetic carrier
Assignee: Siemens AG
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Filing: 1972-11-22
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Granted: 1974-09-24
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Expires: 1992-11-22
Abstract
Abstract An analog function generator is disclosed and has a magnetic carrier made up of at least two magnetic parts extending over a predetermined range. The magnetic parts have respective, mutually opposing polarities and develop a composite magnetic field composed of component magnetic induction fields corresponding to these polarities. The magnetic parts conjointly define a common boundary interface between each other. A galvanomagnetic device such as a Hall generator is disposed in the composite magnetic field. The magnetic carrier and the galvanomagnetic device are mounted so as to effect a relative motion with respect to each other and the interface is inclined with respect to the direction of this motion; this causes the component magnetic fields to act upon the galvanomagnetic device in respective varying intensities as the device and the carrier move relative to each other in the direction of the relative motion whereby the device provides an output signal having a polarity and magnitude dependent upon the position of the device with respect to the carrier.
Inventors
- 👤 M Appiah
- 👤 J Haeusler
- 👤 W Wagnerberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:42
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/142; G01D5/145; G01D2205/00; G01D2205/70; G01D2205/77; G01D2205/777
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
156 words
An analog function generator comprising a magnetic carrier made up of at least two magnetic parts extending over a predetermined range, said magnetic parts having respective, mutually opposing polarities and developing a composite magnetic field comprising respective component magnetic induction fields corresponding to said polarities, said magnetic parts conjointly defiing a common boundary interface between each other, and a galvanomagnetic device disposed in said composite magnetic field, said magnetic carrier and said galvanomagnetic device being mouned so as to effect a relative motion between each other, said interface being inclined with respect to the direction of said motion to cause said component magnetic fields to act upon said galvanomagnetic device in respective varying intensities as said device and said carrier move relative to each other in said direction of said relative motion whereby said device provides an output signal having a polarity and magnitude dependent upon the position of said device with respect to said carrier.
Claim 2
Dependent Claim
156 words
An analog function generator comprising a magnetic carrier made up of at least two magnetic parts extending over a predetermined range, said magnetic parts having respective, mutually opposing polarities and developing a composite magnetic field comprising respective component magnetic induction fields corresponding to said polarities, said magnetic parts conjointly defiing a common boundary interface between each other, and a galvanomagnetic device disposed in said composite magnetic field, said magnetic carrier and said galvanomagnetic device being mouned so as to effect a relative motion between each other, said interface being inclined with respect to the direction of said motion to cause said component magnetic fields to act upon said galvanomagnetic device in respective varying intensities as said device and said carrier move relative to each other in said direction of said relative motion whereby said device provides an output signal having a polarity and magnitude dependent upon the position of said device with respect to said carrier.
Claim 3
Dependent Claim
109 words
The analog function generator of claim 1 wherein the output signal is a function of angular position, said function generator comprising a support member, said magnetic parts being attached to said support member so as to extend over an angular range between 0* and 360*, said support member being rotatably mounted to rotate said magnetic parts in an angular direction with respect to said galvanomagnetic device to cause said component magnetic fields to act upon said galvanomagnetic device in respective varying intensities as said magnetic parts move in said angular direction whereby said output signal has a polarity and intensity dependent upon the angular position of said support member.
Claim 4
Dependent Claim
14 words
The analog function generator of claim 2, said galvanomagnetic device being a Hall generator.
Claim 5
Dependent Claim
76 words
The analog function generator of claim 3, said support member being a circular member, said magnetic carrier being a rectangular magnetic foil attached to the circumferential periphery of said circular member, said two magnetic parts being respective foil portions having respective, mutually opposing polarities, said foil portions conjointly defining a common boundary interface between each other, said boundary interface having a constant slop so as to rise linearly with respect to the direction of angular motion.
Claim 6
Dependent Claim
63 words
The analog function generator of claim 3, said support member being a circular member, said magnetic carrier being a circular magnetic foil attached to an end face of said circular member, said two magnetic parts being respective foil portions having respective, mutually opposing polarities, said foil portions conjointly defining a common boundary interface between each other, said boundary interface having a spiral-like shape.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |