GB950982A - Devices in ultracentrifuges for detecting movements of the rotor - Google Patents
Devices in ultracentrifuges for detecting movements of the rotorInfo
- Publication number
- GB950982A GB950982A GB912961A GB912961A GB950982A GB 950982 A GB950982 A GB 950982A GB 912961 A GB912961 A GB 912961A GB 912961 A GB912961 A GB 912961A GB 950982 A GB950982 A GB 950982A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotor
- march
- casing
- coil
- ultracentrifuges
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B5/00—Other centrifuges
- B04B5/08—Centrifuges for separating predominantly gaseous mixtures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B13/00—Control arrangements specially designed for centrifuges; Programme control of centrifuges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
- B04B9/12—Suspending rotary bowls ; Bearings; Packings for bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
- B04B9/14—Balancing rotary bowls ; Schrappers
- B04B9/146—Unbalance detection devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
- G01D5/2006—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
- G01D5/2033—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils controlling the saturation of a magnetic circuit by means of a movable element, e.g. a magnet
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Centrifugal Separators (AREA)
Abstract
950,982. Measuring electrically. REACTOR CENTRUM NEDERLAND. March 13,1961 [March 17, 1960], No. 9129/61. Heading G1N. A centrifuge whose rotor 2 (Fig. 1) is driven by a motor 5, 6 and maintained vertical by cooperating magnets 9, 10 (Fig. 2), has a coil 16 in a magnetic, preferably ferrite, core 17 located on the outside of the casing 1 so that normally existing irregularities in the fields of magnets 9, 10 induce an alternating voltage in coil 16, which is amplified at 18 and indicates at 19 the speed of rotation or the extent of the wobble. By using two coils displaced by 90 degrees round the casing 1, the rest position of the centrifuge rotor can be determined from their inductances.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL249509 | 1960-03-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB950982A true GB950982A (en) | 1964-03-04 |
Family
ID=19752229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB912961A Expired GB950982A (en) | 1960-03-17 | 1961-03-13 | Devices in ultracentrifuges for detecting movements of the rotor |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH390798A (en) |
DE (1) | DE1144195B (en) |
GB (1) | GB950982A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4335119C2 (en) * | 1993-10-15 | 1997-11-20 | Eppendorf Geraetebau Gmbh | Laboratory centrifuge with unbalance shutdown |
CN105521876A (en) * | 2016-01-15 | 2016-04-27 | 上海戴宝机械设备有限公司 | Tubular centrifuge and method thereof for keeping balance of rotating drum |
DE102017128027A1 (en) * | 2017-11-27 | 2019-05-29 | Gea Mechanical Equipment Gmbh | separator |
-
1961
- 1961-03-13 GB GB912961A patent/GB950982A/en not_active Expired
- 1961-03-14 CH CH310661A patent/CH390798A/en unknown
- 1961-03-15 DE DER29882A patent/DE1144195B/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1144195B (en) | 1963-02-21 |
CH390798A (en) | 1965-04-15 |
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