GB944146A - Improvements in or relating to detecting devices - Google Patents
Improvements in or relating to detecting devicesInfo
- Publication number
- GB944146A GB944146A GB1076360A GB1076360A GB944146A GB 944146 A GB944146 A GB 944146A GB 1076360 A GB1076360 A GB 1076360A GB 1076360 A GB1076360 A GB 1076360A GB 944146 A GB944146 A GB 944146A
- Authority
- GB
- United Kingdom
- Prior art keywords
- thermistor
- level
- contacts
- resistance
- gauge
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/24—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
- G01F23/246—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid thermal devices
- G01F23/247—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid thermal devices for discrete levels
Abstract
944,146. Measuring electrically. H. A. ROBERTSON. March 26,1960, No. 10763/60. Heading G1N. In a liquid level gauge the level of the liquid controls the heat dissipation from, and hence the resistance of, a current carrying thermistor. In the Figure a thermistor 1 is mounted at the end of an electrically conducting tube 2 and connected, by plug 6 through resistors 7, with the indicating circuit. The circuit diagram shows how the gauge may be connected in the wiring of an I. C. engine to light the oil pressure warning light 10 when the resistance of the thermistor 1 falls due to its rise in temperature on being uncovered by a fall in oil level. Contacts 9 are the contacts of the existing low oil pressure warning switch. Stop 4 is adjustable to cater for variations in normal oil level in various containers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1076360A GB944146A (en) | 1960-03-26 | 1960-03-26 | Improvements in or relating to detecting devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1076360A GB944146A (en) | 1960-03-26 | 1960-03-26 | Improvements in or relating to detecting devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB944146A true GB944146A (en) | 1963-12-11 |
Family
ID=9973803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1076360A Expired GB944146A (en) | 1960-03-26 | 1960-03-26 | Improvements in or relating to detecting devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB944146A (en) |
-
1960
- 1960-03-26 GB GB1076360A patent/GB944146A/en not_active Expired
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