Variable resistors and potentiometers:
Gespeichert in:
| Beteilige Person: | |
|---|---|
| Format: | Buch |
| Sprache: | Englisch |
| Veröffentlicht: |
London
Pitman
1963
|
| Ausgabe: | 2. ed. |
| Schriftenreihe: | Radio and electronic components
2 |
| Schlagwörter: | |
| Links: | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=009945758&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| Umfang: | XI, 228 S. |
Internformat
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Datensatz im Suchindex
| DE-BY-TUM_call_number | 0024 63 A 2264 |
|---|---|
| DE-BY-TUM_katkey | 1294382 |
| DE-BY-TUM_location | Mag |
| DE-BY-TUM_media_number | TEMP2652911 |
| _version_ | 1821932457009610753 |
| adam_text | Radio and Electronic Components: Volume Two
VARIABLE RESISTORS
AND
POTENTIOMETERS
BY
GWA DUMMER
MBE,MIEE
Head of Components Research, Development and Testing at the
Radar Research Establishment, Ministry of Aviation
LONDON
StR ISAAC PITMAN amp; SONS LTD
CONTENTS
PAGE
Foreword (Contributed to Volume One) v
Preface to the Second Edition vii
Acknowledgments viii
List of More Important Tables and Figures xi
CHAP
1 General Information on Components 1
2 General Information on Variable Resistors and
Potentiometers 15
Resistance and resistivity—Principles of potentiometry—Termin-
ology—Types of variable resistor—Choice of a variable resistor: a
review of general characteristics—Methods of sealing variable resistors
—Sealing test for panel-mounted components
3 Measurements on Variable Resistors 52
Measurement of resistance—Measurement of temperature coefficient
of resistance—Measurement of voltage coefficient of resistance—
Measurement of noise in variable resistors—Measurement of linearity
of precision wirewound variable resistors
4 Wire Characteristics: Contacts, Wear and Noise 79
5 Curve Matching and Non-linear Functions Obtainable
with Linear Variable Resistors 100
Methods of obtaining functional curves from loaded variable resistors
—Curve matching by loading linear variable resistors—Non-linear
functions by cascading potentiometers-—Loading errors in a linear
variable resistor—Errors due to loading sine-cosine potentiometers—
Non-linear functions obtainable by contouring the resistance element
—Non-linear functions with helical potentiometers
6 General-purpose Types of Variable Resistor 119
Carbon-composition coated-track types—Carbon-composition moulded-
track types—Variable resistors with incorporated switches—General-
purpose wirewound rotary variable resistors—Variable wirewound
solenoid types—Faults which may occur in general-purpose variable
resistors
IX
X
CONTENTS
CHAP
7 Precision Variable Resistors
Solenoid and toroidal former types—Design of a precision toroidal
variable resistor—The effect of frequency on precision wirewound
potentiometers—Cam-corrected variable resistors—Step-by-step or
interpolating variable resistors—Precision solenoid-wound variable
resistors—Helical-wound variable resistors—Precision winding
machines—The selection and inspection of precision wirewound
potentiometers
8 Special Types of Variable Resistor and Potentiometer
Sine-cosine potentiometers—Differential potentiometers—Inductive
potentiometers (“I pots”)—Slide-wire potentiometers—A variable
resistor using light control—Rectilinear types—Pre-set types—
Miniature (deaf-aid) types—Low-torque variable resistors—Shaped-
former types
9 Miscellaneous and Experimental Types of Variable
Resistor
Folded-foil resistors—Fired metal-film types—Printed-circuit types—
Oxide-film potentiometers — Commutated-carbon-composition-film
types—Carbon-backed commutator types—Pre-grooved metallized-
ceramic types—Sub-miniature glass-tube carbon-composition types—
Conducting-glass types—Shaped- or graded-former types—Cambered-
contact toroidal variable resistor—Harp-wound types—Drum-wound
variable resistors with shaped brushes—Resistance resolvers—Pitch-
graded windings—Conducting-plastic variable resistors—Miniature
three-gang variable resistors—Liquid potentiometers—Moulded car-
bon-composition resistive elements
10 Future Developments in Variable Resistor Design
Bibliography
Index
/
PAGE
137
166
193
213
215
227
LIST OF MORE IMPORTANT TABLES AND FIGURES
TABLE PAGE
1 1 -1 3 Temperature and Humidity Categories of Components 4-6
1 4 Component Environment Test Specification—Shock and
Vibration Requirements 7
1 5 Tests in Specification DEF 5011 Summarized in Alphabetical
Order 8
1 6 Variable Resistor Specifications 11
1718 Summary of Tests 12,13
2 1 Resistivities of Resistance Materials 16
2 2 Resistivities of Elements, Metals and Alloys 22
2 3 Typical Sizes, Operating Voltages and Power Ratings of Ser-
vice Variable Resistors 44
2 4 Summary of Electrical Characteristics of Variable Resistors 48
3 1 Temperature Coefficients of Resistance of Metals and Alloys 66
4 1 Physical Constants of Various Metals and Alloys 83
4 2 Resistances (ohms per yard) of Wires of Various Alloys 84
4 3 Satisfactory Combinations of Winding and Contact Materials 92
4 4 Types of Noise in Variable Resistors 98
7 1 Resolution of Toroidal Windings using 50 SWG Wire 138
FIG
7 5 Length of Wire on Toroidal Former of Circular Cross-section 146
7 6 Resistances of Lengths of Alloy Wires - 147
/
|
| any_adam_object | 1 |
| author | Dummer, Geoffrey W. A. 1909-2002 |
| author_GND | (DE-588)10874230X |
| author_facet | Dummer, Geoffrey W. A. 1909-2002 |
| author_role | aut |
| author_sort | Dummer, Geoffrey W. A. 1909-2002 |
| author_variant | g w a d gwa gwad |
| building | Verbundindex |
| bvnumber | BV014652548 |
| callnumber-first | T - Technology |
| callnumber-label | TK6565 |
| callnumber-raw | TK6565.R426 |
| callnumber-search | TK6565.R426 |
| callnumber-sort | TK 46565 R426 |
| callnumber-subject | TK - Electrical and Nuclear Engineering |
| ctrlnum | (OCoLC)2078824 (DE-599)BVBBV014652548 |
| dewey-full | 621.3815 |
| dewey-hundreds | 600 - Technology (Applied sciences) |
| dewey-ones | 621 - Applied physics |
| dewey-raw | 621.3815 |
| dewey-search | 621.3815 |
| dewey-sort | 3621.3815 |
| dewey-tens | 620 - Engineering and allied operations |
| discipline | Elektrotechnik / Elektronik / Nachrichtentechnik |
| edition | 2. ed. |
| format | Book |
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| id | DE-604.BV014652548 |
| illustrated | Not Illustrated |
| indexdate | 2024-12-20T11:06:08Z |
| institution | BVB |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-009945758 |
| oclc_num | 2078824 |
| open_access_boolean | |
| owner | DE-91 DE-BY-TUM DE-83 DE-210 |
| owner_facet | DE-91 DE-BY-TUM DE-83 DE-210 |
| physical | XI, 228 S. |
| psigel | TUB-nb |
| publishDate | 1963 |
| publishDateSearch | 1963 |
| publishDateSort | 1963 |
| publisher | Pitman |
| record_format | marc |
| series | Radio and electronic components |
| series2 | Radio and electronic components |
| spellingShingle | Dummer, Geoffrey W. A. 1909-2002 Variable resistors and potentiometers Radio and electronic components Potentiométrie ram Résistances électriques ram Electric resistors Potentiometer Varistor (DE-588)4136137-4 gnd |
| subject_GND | (DE-588)4136137-4 |
| title | Variable resistors and potentiometers |
| title_auth | Variable resistors and potentiometers |
| title_exact_search | Variable resistors and potentiometers |
| title_full | Variable resistors and potentiometers G. W. A. Dummer |
| title_fullStr | Variable resistors and potentiometers G. W. A. Dummer |
| title_full_unstemmed | Variable resistors and potentiometers G. W. A. Dummer |
| title_short | Variable resistors and potentiometers |
| title_sort | variable resistors and potentiometers |
| topic | Potentiométrie ram Résistances électriques ram Electric resistors Potentiometer Varistor (DE-588)4136137-4 gnd |
| topic_facet | Potentiométrie Résistances électriques Electric resistors Potentiometer Varistor |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=009945758&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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0024 63 A 2264 Lageplan |
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| Exemplar 1 | Ausleihbar Am Standort |