GB886488A - Improvements in and relating to variable resistors and potentiometers - Google Patents
Improvements in and relating to variable resistors and potentiometersInfo
- Publication number
- GB886488A GB886488A GB1599857A GB1599857A GB886488A GB 886488 A GB886488 A GB 886488A GB 1599857 A GB1599857 A GB 1599857A GB 1599857 A GB1599857 A GB 1599857A GB 886488 A GB886488 A GB 886488A
- Authority
- GB
- United Kingdom
- Prior art keywords
- base
- track
- contact elements
- degrees
- angular velocity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/26—Adjustable resistors resistive element moving
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Adjustable Resistors (AREA)
Abstract
886,488. Inverting. PLESSEY CO. Ltd. May 20, 1958 [May 20, 1957], No. 15998/57. Class 38 (2). [Also in Group XXXVI] A potentiometer (see Group XXXVI) may be used as an inverter by rotating the track at a constant angular velocity relative to three fixed contacts. In a first form, Figs. 7, 8, a base 44 carries an arcuate resistive track 45 joined at one end to an inner circular conductive track 46 and at the other end to an outer conductive circular track 47, and is rotatably mounted with respect to a second base carrying three contact elements 53, 51, 52 which engage with the three tracks respectively. If a D.C. potential is applied between contact elements 51, 52 and the base 44 driven at a constant angular velocity a saw-tooth wave-form is produced at contact element 53. In a second embodiment suitable for producing a sinewave output, Figs. 9, 10, a base 57 has mounted on it a circular track having a low resistance portion 58 extending over 120 degrees, a high resistance portion 59 extending over 120 degrees, and two 60 degree portions 60 of intermediate resistance value, and is rotatably mounted with respect to a second base carrying three contact elements 62, 63, 64 mounted at angular displacements of 120 degrees. If a D.C. potential is applied between two of the contact elements, and the base 57 rotated at constant angular velocity, an approximately sinusoidal output may be obtained at the third terminal. Protective resistors may be included in the external D.C. to limit the current. Specification 853,947 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1599857A GB886488A (en) | 1957-05-20 | 1957-05-20 | Improvements in and relating to variable resistors and potentiometers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1599857A GB886488A (en) | 1957-05-20 | 1957-05-20 | Improvements in and relating to variable resistors and potentiometers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB886488A true GB886488A (en) | 1962-01-10 |
Family
ID=10069339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1599857A Expired GB886488A (en) | 1957-05-20 | 1957-05-20 | Improvements in and relating to variable resistors and potentiometers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB886488A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3448428A (en) * | 1967-10-23 | 1969-06-03 | Gloria Eichmiller | Variable resistor with rectangular resistance element |
US4223294A (en) * | 1978-10-16 | 1980-09-16 | Allen-Bradley Company | Vernier control |
EP0244634A2 (en) | 1986-04-04 | 1987-11-11 | AB Elektronik GmbH | Variable attenuator |
DE4422856C2 (en) * | 1994-06-30 | 2000-01-27 | A B Elektronik Gmbh | Adjustable resistance device and a method for manufacturing its base plate unit |
-
1957
- 1957-05-20 GB GB1599857A patent/GB886488A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3448428A (en) * | 1967-10-23 | 1969-06-03 | Gloria Eichmiller | Variable resistor with rectangular resistance element |
US4223294A (en) * | 1978-10-16 | 1980-09-16 | Allen-Bradley Company | Vernier control |
EP0244634A2 (en) | 1986-04-04 | 1987-11-11 | AB Elektronik GmbH | Variable attenuator |
EP0244634A3 (en) * | 1986-04-04 | 1989-07-12 | Ab Elektronik Gmbh | Variable attenuator |
DE4422856C2 (en) * | 1994-06-30 | 2000-01-27 | A B Elektronik Gmbh | Adjustable resistance device and a method for manufacturing its base plate unit |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB886488A (en) | Improvements in and relating to variable resistors and potentiometers | |
ES428174A1 (en) | Transmission device | |
JPS5226874A (en) | Rotary type electric field intensity measuring apparatus using a stati onary electrode plate provided with holes | |
CA1032625A (en) | Variable resistance control with differentially resilient contacts | |
JPS6066052U (en) | adjustable photoelectric potentiometer | |
ES241600U (en) | A device for limiting relative rotation of two coaxial bodies | |
GB1399542A (en) | Potentiometers | |
SU113372A1 (en) | Sinus cosine potentiometer | |
ES202707U (en) | Improvement in adjustment potentiometers (Machine-translation by Google Translate, not legally binding) | |
GB853947A (en) | Improvements in or relating to potentiometers and variable resistors | |
SU120259A1 (en) | A device for compensating the opposing moment of stretching in galvanometers and electrometers | |
JPS58187705U (en) | Degree Ruler | |
GB1020897A (en) | Rotational speed governor | |
ES227070U (en) | Perfected peonza. (Machine-translation by Google Translate, not legally binding) | |
ES232442A3 (en) | Improvements in low voltage vehicle fans (Machine-translation by Google Translate, not legally binding) | |
GB601541A (en) | Improvements relating to electrical remote indicating or repeating systems | |
GB722284A (en) | Improvements in or relating to variable electric resistances and potentiometers | |
GB864344A (en) | Improvements in or relating to variable resistors or potentiometers | |
ES200085U (en) | A wheel of spherical structure, perfected. (Machine-translation by Google Translate, not legally binding) | |
GB1357873A (en) | Variable thermally sensitive resistance device | |
JPS5819266U (en) | Rotation detection sensor | |
International Joint Commission | Transboundary Air Pollution: Detroit and St. Clair River Areas | |
ES262369A1 (en) | Improvements in articulation fixing devices (Machine-translation by Google Translate, not legally binding) | |
GB835495A (en) | Improvements in or relating to potentiometers | |
DEBORD | Resolver tracking bridge(Resolver tracking bridge monitors sine, cosine and reference voltages of resolver and automatically determines resolver shaft angle) |