GB1047988A - A force balance for use with a digital read-out - Google Patents

A force balance for use with a digital read-out

Info

Publication number
GB1047988A
GB1047988A GB8513/64A GB851364A GB1047988A GB 1047988 A GB1047988 A GB 1047988A GB 8513/64 A GB8513/64 A GB 8513/64A GB 851364 A GB851364 A GB 851364A GB 1047988 A GB1047988 A GB 1047988A
Authority
GB
United Kingdom
Prior art keywords
pulses
force
lever
pulse
pulse generator
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
Application number
GB8513/64A
Inventor
Edgar Bernard Romberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
North American Aviation Corp
Original Assignee
North American Aviation Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to US79924A priority Critical patent/US3131564A/en
Application filed by North American Aviation Corp filed Critical North American Aviation Corp
Priority to GB8513/64A priority patent/GB1047988A/en
Priority to DEN24554A priority patent/DE1243438B/en
Priority to FR967191A priority patent/FR1390564A/en
Publication of GB1047988A publication Critical patent/GB1047988A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/13—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by measuring the force required to restore a proofmass subjected to inertial forces to a null position
    • G01P15/132—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by measuring the force required to restore a proofmass subjected to inertial forces to a null position with electromagnetic counterbalancing means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P7/00—Measuring speed by integrating acceleration
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

1,047,988. Selective signalling. NORTH AMERICAN AVIATION Inc. Feb. 28, 1964, No. 8513/64. Heading G4H. A force balancing system comprises a lever 10, to one end 16 of which a force to be measured is applied, and to the other end of which an electromagnetic counter force is applied, this force being produced by pulses of opposite polarity applied to two coils 44 and 36 by a pulse generator 46. When the lever is in its neutral central position the pulses applied to coils 44 and 36 are of equal amplitude, 100, and 101, Fig. 5, thus applying a zero resultant force to the lever, but as the lever moves away from its central position a D.C. voltage is superimposed upon the pulses through coil 36 (effectively shifting the datum of pulses 101) so that a resultant counter-balancing force is applied to the lever. The pulse generator 46 produces a sequence of pulses of o pposi polarity on a lead 45, each pulse being an integral multiple of a clock-pulse duration in duration and causing current to flow in opposite directions through coils 44 and 36. The pulse generator 46 also applies clock-pulses 103 to a line 52 when it is producing a positive pulse on lead 45, and to a lead 54 when it is producing a negative pulse. The pulse generator 46 produces pulses whose durations are determined in accordance with the potential across a capacitor 34 in such a way as to maintain the potential as small as possible. A measure of the force on the lever can be found by counting the pulses on line 52 positively and those on line 54 negatively.
GB8513/64A 1960-12-30 1964-02-28 A force balance for use with a digital read-out Expired GB1047988A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US79924A US3131564A (en) 1960-12-30 1960-12-30 Velocity meter with digital readout
GB8513/64A GB1047988A (en) 1964-02-28 1964-02-28 A force balance for use with a digital read-out
DEN24554A DE1243438B (en) 1964-02-28 1964-03-03 Device for speed measurement
FR967191A FR1390564A (en) 1964-02-28 1964-03-12 Speedometer with digital readout

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8513/64A GB1047988A (en) 1964-02-28 1964-02-28 A force balance for use with a digital read-out

Publications (1)

Publication Number Publication Date
GB1047988A true GB1047988A (en) 1966-11-09

Family

ID=9853892

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8513/64A Expired GB1047988A (en) 1960-12-30 1964-02-28 A force balance for use with a digital read-out

Country Status (1)

Country Link
GB (1) GB1047988A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2645285A1 (en) * 1989-04-03 1990-10-05 Asahi Optical Co Ltd IMAGE FLOUD CORRECTION DEVICE FOR CAMERA USING ANGULAR ACCELERATION SENSOR AND ANGULAR ACCELERATION SENSOR

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2645285A1 (en) * 1989-04-03 1990-10-05 Asahi Optical Co Ltd IMAGE FLOUD CORRECTION DEVICE FOR CAMERA USING ANGULAR ACCELERATION SENSOR AND ANGULAR ACCELERATION SENSOR
GB2231666A (en) * 1989-04-03 1990-11-21 Asahi Optical Co Ltd Apparatus for correcting blurred image of camera using angular acceleration sensor, and acceleration sensor
FR2650401A1 (en) * 1989-04-03 1991-02-01 Asahi Optical Co Ltd IMAGE FLOUD CORRECTION DEVICE FOR PHOTOGRAPHIC APPARATUS COMPRISING A BIMORPHIC CRYSTAL PLATE
US4996545A (en) * 1989-04-03 1991-02-26 Asahi Kogaku Kogyo Kabushiki Kaisha Apparatus for correcting blurred image of camera using angular acceleration sensor and angular acceleration sensor
GB2231666B (en) * 1989-04-03 1993-11-03 Asahi Optical Co Ltd Angular acceleration sensor and an image blur correcting apparatus for a camera

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