GB2127637B - Improvements in or relating to pulse rebalanced servomechanisms - Google Patents

Improvements in or relating to pulse rebalanced servomechanisms

Info

Publication number
GB2127637B
GB2127637B GB8224585A GB8224585A GB2127637B GB 2127637 B GB2127637 B GB 2127637B GB 8224585 A GB8224585 A GB 8224585A GB 8224585 A GB8224585 A GB 8224585A GB 2127637 B GB2127637 B GB 2127637B
Authority
GB
United Kingdom
Prior art keywords
train
pulses
pulse
integrator means
rebalanced
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
GB8224585A
Other versions
GB2127637A (en
Inventor
John Albert Geen
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.)
BAE Systems PLC
Original Assignee
British Aerospace PLC
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
Application filed by British Aerospace PLC filed Critical British Aerospace PLC
Priority to GB8224585A priority Critical patent/GB2127637B/en
Priority to FR8313811A priority patent/FR2532445A1/en
Publication of GB2127637A publication Critical patent/GB2127637A/en
Application granted granted Critical
Publication of GB2127637B publication Critical patent/GB2127637B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G01C19/02—Rotary gyroscopes
    • G01C19/04—Details
    • G01C19/28—Pick-offs, i.e. devices for taking-off an indication of the displacement of the rotor axis
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/412—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M3/414—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having multiple quantisers arranged in cascaded loops, each of the second and further loops processing the quantisation error of the loop preceding it, i.e. multiple stage noise shaping [MASH] type
    • H03M3/418—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having multiple quantisers arranged in cascaded loops, each of the second and further loops processing the quantisation error of the loop preceding it, i.e. multiple stage noise shaping [MASH] type all these quantisers being single bit quantisers

Abstract

A pulse rebalanced servomechanism for converting a variable input EI into a digital output signal EO has integrator means (2), a feedback loop (5) applying a first train of pulses representative of the output of the integrator means to the input of the integrator means, whereby the integrator means is responsive to the difference between the variable input and the first train of pulses, and interpolating means (9) for producing a second train of pulses corresponding to the output of the integrator means (2), the pulse duration of the second train of pulses being less than the pulse duration of the first train of pulses so that the second train of pulses provides a finer resolution of the input than the first train of pulses, and combining means (15) for combining the first train of pulses with the second train of pulses to produce said digital output signal corresponding to the variable input. <IMAGE>
GB8224585A 1982-08-26 1982-08-26 Improvements in or relating to pulse rebalanced servomechanisms Expired GB2127637B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB8224585A GB2127637B (en) 1982-08-26 1982-08-26 Improvements in or relating to pulse rebalanced servomechanisms
FR8313811A FR2532445A1 (en) 1982-08-26 1983-08-26 IMPROVEMENTS IN OR RELATING TO IMPULSE-BALANCED SERVOMECHANISMS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8224585A GB2127637B (en) 1982-08-26 1982-08-26 Improvements in or relating to pulse rebalanced servomechanisms

Publications (2)

Publication Number Publication Date
GB2127637A GB2127637A (en) 1984-04-11
GB2127637B true GB2127637B (en) 1985-12-11

Family

ID=10532548

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8224585A Expired GB2127637B (en) 1982-08-26 1982-08-26 Improvements in or relating to pulse rebalanced servomechanisms

Country Status (2)

Country Link
FR (1) FR2532445A1 (en)
GB (1) GB2127637B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9007483D0 (en) * 1990-04-03 1990-05-30 Kellett Michael A Servo accelerometer and control systems therefor
DE4409708A1 (en) * 1994-03-22 1995-09-28 Teves Gmbh Alfred Circuit arrangement for processing and A / D conversion of an analog signal
WO2001027559A2 (en) 1999-10-13 2001-04-19 Analog Devices, Inc. Feedback mechanism for rate gyroscopes
US7956783B2 (en) 2009-01-29 2011-06-07 Analog Devices, Inc. Analog-to-digital converter using digital output as dither
CN102707088B (en) * 2012-05-28 2013-10-16 西北工业大学 High-order continuous low-pass sigma-delta closed-loop control circuit of micro-mechanical accelerometer
US9519076B2 (en) 2014-02-20 2016-12-13 Lockheed Martin Corporation De-centralized control architecture for improved sensitivity of accelerometer-based gravity gradiometers

Also Published As

Publication number Publication date
FR2532445A1 (en) 1984-03-02
GB2127637A (en) 1984-04-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010826