US3786336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring the angular displacement and the angular velocity of a rotation member
Assignee: Honeywell International Inc
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Filing: 1972-04-11
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Granted: 1974-01-15
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Expires: 1992-04-11
Abstract
Abstract Apparatus for measuring the angular displacement and the angular velocity of a rotating member. Mechanical energy causing angular motion of the rotating member is transformed into electrical energy in the form of a plurality of electrical pulses which are counted during a preselected time interval. Variations in the magnitude of the cycle do not alter the accuracy of the apparatus. Thus, the angular displacement and the angular velocity of the rotating member can be economically measured with greater accuracy than has previously been possible with voltage dependent apparatus.
Inventors
- 👤 T Lohr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:12
CPC Classifications
G; G01; G01P; G01P3/00; G01P3/42; G01P3/44; G01P3/48; G01P3/481; G01P3/489; G01P3/487; H; H02; H02K; H02K21/00; H02K21/12; H02K21/14; H02K21/145; H02K2201/00; H02K2201/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
159 words
Apparatus for measuring the angular displacement and the angular velocity of a rotating member, comprising: a. a generator having a field assembly disposed about a flux generating means for providing an alternating current having a plurality of cycles; b. said flux generating means being joined with the rotating member for synchronous motion with respect thereto; c. rectification means connected to said field assembly for converting said alternating current into a unidirectional current; d. amplification means connected to said rectification means for linear reproduction of said cycles; e. wave shaping means in series with said amplification means for converting said cycles into a train of pulses; f. counting means in series with said wave shaping means for counting the number of pulses; and g. time control means in parallel with said rectification, amplification and wave shaping means and connected to said counting means for selectively permitting the pulse train to pass through the counting means during a preselected time interval.
Claim 2
Dependent Claim
159 words
Apparatus for measuring the angular displacement and the angular velocity of a rotating member, comprising: a. a generator having a field assembly disposed about a flux generating means for providing an alternating current having a plurality of cycles; b. said flux generating means being joined with the rotating member for synchronous motion with respect thereto; c. rectification means connected to said field assembly for converting said alternating current into a unidirectional current; d. amplification means connected to said rectification means for linear reproduction of said cycles; e. wave shaping means in series with said amplification means for converting said cycles into a train of pulses; f. counting means in series with said wave shaping means for counting the number of pulses; and g. time control means in parallel with said rectification, amplification and wave shaping means and connected to said counting means for selectively permitting the pulse train to pass through the counting means during a preselected time interval.
Claim 3
Dependent Claim
44 words
Apparatus as recited in claim 1 wherein said rectification means and said amplification means collectively include a transistor having an input terminal connected in series with said generator and a load resistor connected between a power source and an output terminal of said transistor.
Claim 4
Dependent Claim
30 words
Apparatus as recited in claim 2 wherein said wave shaping means includes a resistor in series with two nand gates and a feedback resistor in parallel with said nand gates.
Claim 5
Dependent Claim
21 words
Apparatus as recited in claim 3 wherein the counting means includes a nand gate in series with said wave shaping means.
Claim 6
Dependent Claim
28 words
Apparatus as recited in claim 4 wherein the time control means is in the form of a monostable multivibrator connected between said power source and said counting means.
Claim 7
Dependent Claim
47 words
Apparatus as recited in claim 5 wherein said generator includes a housing, said flux generating means includes an armature rotatably supported by said housing and a heteropolar permanent magnet mounted on said armature for rotation about an axis and said magnet has about 76 to 100 poles.
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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |