GB738155A - Improvements in integrating units - Google Patents

Improvements in integrating units

Info

Publication number
GB738155A
GB738155A GB2515051A GB2515051A GB738155A GB 738155 A GB738155 A GB 738155A GB 2515051 A GB2515051 A GB 2515051A GB 2515051 A GB2515051 A GB 2515051A GB 738155 A GB738155 A GB 738155A
Authority
GB
United Kingdom
Prior art keywords
motor
governor
relay
diaphragm
ward
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
GB2515051A
Inventor
Peter Sidney Saunders
Ernest Henry Goody
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB2515051A priority Critical patent/GB738155A/en
Publication of GB738155A publication Critical patent/GB738155A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/38—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule
    • G01F1/383—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule with electrical or electro-mechanical indication

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

738,155. Flowmeters. NATIONAL . RESEARCH DEVELOPMENT. CORPORATION. Jan. 6, 1953 [Oct. 26, 1951], No. 25150/51. Class 69 (1). [Also in Group XXXVIII] In an arrangement for measuring the rate of flow or total flow of a fluid in a duct, the two pressures obtained from an orifice, Pitot tube or venturi unit 3 in the duct are applied one on either side of a diaphragm 5, which therefore tends to be displaced by a force proportional to the difference of the two pressures, and the diaphragm is linked at 6 to the contacts 14 of a relay 13 of the vibrating contact type controlling the speed of a motor 12 driving a governor 11, the control element 10 of the governor being connected by a link 8 to the diaphragm so that the centrifugal force of the governor restores the diaphragm to its original position. Thus the rate of fluid flow may be obtained from a tachometer on the motor shaft and the total flow from a revolution counter. The motor drive for the governor may be : (a) a threephase squirrel-cage motor with two phases periodically interrupted by the relay 13 ; (b) a permanent magnet D.C. motor in combination with the relay 13 ; (c) a D.C. shunt motor with the field continuously energized and the armature in series with a resistance, the armature being short-circuited by contacts operated by the relay 13. Alternatively a Ward-Leonard set, the driven motor of which drives a threephase attenuator connected to a squirrel-cage or synchronous motor driving the governor, may be used, in which case the field of the Ward- Leonard generator is varied by the vibrating contact type relay. As a further alternative, a Ward-Leonard set may be used to drive a permanent magnet D.C. motor, the field of the generator being varied as above.
GB2515051A 1951-10-26 1951-10-26 Improvements in integrating units Expired GB738155A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2515051A GB738155A (en) 1951-10-26 1951-10-26 Improvements in integrating units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2515051A GB738155A (en) 1951-10-26 1951-10-26 Improvements in integrating units

Publications (1)

Publication Number Publication Date
GB738155A true GB738155A (en) 1955-10-12

Family

ID=10223045

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2515051A Expired GB738155A (en) 1951-10-26 1951-10-26 Improvements in integrating units

Country Status (1)

Country Link
GB (1) GB738155A (en)

Similar Documents

Publication Publication Date Title
GB738155A (en) Improvements in integrating units
GB653399A (en) Rate of change of fluid pressure indicator applicable as a rate of climb indicator or as an accelerometer for aircraft
GB1418138A (en) Adjustable electrical switching-off device
GB726979A (en) Improvements in or relating to apparatus for supervising slip in friction drives
GB1264297A (en)
US2502027A (en) Speed controlling apparatus
US1186851A (en) Synchronizer.
GB762213A (en) Combined centrifuge fruit press and mixer
SU114134A1 (en) Device for remote determination of angular velocity
GB1340902A (en) Rotation detecting device
SU492809A1 (en) Centrifugal speed sensor with pneumatic output
SU1157524A1 (en) Device for control of mechanism for positioning platform of bar piler
GB284860A (en) Improved automatic control system for electric motors
GB993359A (en) Integrating apparatus
GB679363A (en) Improvements in or relating to apparatus for measuring or controlling the rate of flow of a fluid
GB604598A (en) Arrangements for detecting, measuring or directly using for control purposes, the derivatives (speed, acceleration, change of acceleration and higher derivatives) of motion
GB676652A (en) Improvements in or relating to electromagnetic transducing apparatus
GB805341A (en) Improvements relating to driving means for textile ring spinning and the like frames
GB174441A (en) Improvements in and relating to devices for determining intervals of time
GB520904A (en) Improvements in drag tachometers or rate of motion indicators
GB926098A (en) Improvements in or relating to speed responsive devices for motor vehicles
GB677017A (en) Improvements relating to electrical recording devices
GB1161984A (en) Improvements in or relating to Tachometers, Revolution Counters and the like
GB684095A (en) Improvements in or relating to means for controlling the speed of direct current electric motors
GB969869A (en) Variable speed electric motors