GB982091A - Improvements in and relating to means for measuring forces - Google Patents
Improvements in and relating to means for measuring forcesInfo
- Publication number
- GB982091A GB982091A GB2138160A GB2138160A GB982091A GB 982091 A GB982091 A GB 982091A GB 2138160 A GB2138160 A GB 2138160A GB 2138160 A GB2138160 A GB 2138160A GB 982091 A GB982091 A GB 982091A
- Authority
- GB
- United Kingdom
- Prior art keywords
- current
- force
- articles
- galvonometer
- phototransistors
- 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
- G01G—WEIGHING
- G01G7/00—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups
- G01G7/02—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electromagnetic action
- G01G7/04—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electromagnetic action with means for regulating the current to solenoids
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/32—Separating, ordering, counting or examining cigarettes; Regulating the feeding of tobacco according to rod or cigarette condition
- A24C5/34—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes
- A24C5/3424—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes by weighing
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
Abstract
982,091. Photo-electric control systems. AMF INTERNATIONAL Ltd. June 15, 1961 [June 17, 1960], No. 21381/60. Heading G1A. The force exerted on a pan V at one end of an arm A is opposed by the torque due to a current in the coil D of a galvonometer movement, the current being measured as an indication of the force and being supplied by a bridge circuit containing two phototransistors G, H, whose illumination from a source L and lens M is varied by a wedge shaped shutter or aperture B at the other end of the arm A. The controlling torque exerted by the spring E of the galvonometer movement may be set by a calibrated knob F so that variations of force from the set value may be measured. The phototransistors are mounted together in a block which may be moved either with or without the source L in the direction of the axis of symmetry of the wedge shape of the aperture or shutter to control their sensitivity. The meter indicating the current through the coil D may have a variable shunt to control its sensitivity and it may be incorporated in an R-C circuit to reduce instability in the system. The device may be used for weighing single articles, for measuring in terms of force, the velocity of a fluid or stream of particles directed on to a vane in place of the pan V, or (by means of a current integrating meter) to measure the average weight of series of articles. Alternatively the signal may be fed to a pulse height analyser or "kick sorter" of known type to grade articles according to weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2138160A GB982091A (en) | 1960-06-17 | 1960-06-17 | Improvements in and relating to means for measuring forces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2138160A GB982091A (en) | 1960-06-17 | 1960-06-17 | Improvements in and relating to means for measuring forces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB982091A true GB982091A (en) | 1965-02-03 |
Family
ID=10161972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2138160A Expired GB982091A (en) | 1960-06-17 | 1960-06-17 | Improvements in and relating to means for measuring forces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB982091A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2198131A1 (en) * | 1972-09-04 | 1974-03-29 | Sartorius Werke Gmbh | |
| US6181422B1 (en) | 1997-03-12 | 2001-01-30 | Brown & Sharpe Limited | Optical surface measurement apparatus and methods |
-
1960
- 1960-06-17 GB GB2138160A patent/GB982091A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2198131A1 (en) * | 1972-09-04 | 1974-03-29 | Sartorius Werke Gmbh | |
| US6181422B1 (en) | 1997-03-12 | 2001-01-30 | Brown & Sharpe Limited | Optical surface measurement apparatus and methods |
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