JPS4950924A - - Google Patents
Info
- Publication number
- JPS4950924A JPS4950924A JP7354189A JP5418973A JPS4950924A JP S4950924 A JPS4950924 A JP S4950924A JP 7354189 A JP7354189 A JP 7354189A JP 5418973 A JP5418973 A JP 5418973A JP S4950924 A JPS4950924 A JP S4950924A
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
- G05D23/2401—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor using a heating element as a sensing element
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
- G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Resistance Heating (AREA)
- Diaphragms For Cameras (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2809672A GB1400623A (en) | 1972-06-15 | 1972-06-15 | Circuit for determining the condition of a load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4950924A true JPS4950924A (ja) | 1974-05-17 |
Family
ID=10270199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7354189A Pending JPS4950924A (ja) | 1972-06-15 | 1973-05-17 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS4950924A (ja) |
| GB (1) | GB1400623A (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5671201A (en) * | 1979-11-15 | 1981-06-13 | Matsushita Electric Works Ltd | Iris shutter |
| JP2020190612A (ja) * | 2019-05-21 | 2020-11-26 | 株式会社コシナ | レンズの絞り装置 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56129581U (ja) * | 1980-03-03 | 1981-10-01 |
-
1972
- 1972-06-15 GB GB2809672A patent/GB1400623A/en not_active Expired
-
1973
- 1973-05-17 JP JP7354189A patent/JPS4950924A/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5671201A (en) * | 1979-11-15 | 1981-06-13 | Matsushita Electric Works Ltd | Iris shutter |
| JP2020190612A (ja) * | 2019-05-21 | 2020-11-26 | 株式会社コシナ | レンズの絞り装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1400623A (en) | 1975-07-16 |