GB1197184A - Computing Apparatus - Google Patents

Computing Apparatus

Info

Publication number
GB1197184A
GB1197184A GB3030866A GB3030866A GB1197184A GB 1197184 A GB1197184 A GB 1197184A GB 3030866 A GB3030866 A GB 3030866A GB 3030866 A GB3030866 A GB 3030866A GB 1197184 A GB1197184 A GB 1197184A
Authority
GB
United Kingdom
Prior art keywords
motor
resistance
power
displacement hydraulic
hydraulic motor
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
GB3030866A
Inventor
Geoffrey Alexander Card
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.)
DOWTY ELECTRICS Ltd
Original Assignee
DOWTY ELECTRICS Ltd
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 DOWTY ELECTRICS Ltd filed Critical DOWTY ELECTRICS Ltd
Priority to GB3030866A priority Critical patent/GB1197184A/en
Publication of GB1197184A publication Critical patent/GB1197184A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/24—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
    • G01L3/245—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity by measuring and simultaneously multiplying pressure and velocity

Abstract

1,197,184. Measuring power of a hydraulic motor electrically. DOWTY ELECTRICS Ltd. Sept. 18, 1967 [July 6, 19661, No.30308/66. Heading G1N. [Also in Division G3] The power of a fixed displacement hydraulic motor is measured by feeding a current generated by a tachogenerator coupled to the motor shaft to a resistance whose value varies with the pressure difference between the fluid inlet and outlet of the motor, and measuring the voltage across the resistance. The resistance is a mechanically variable resistor, or strain gauges, connected in a temperature compensated bridge network. The voltage output from the bridge may be used to control the fluid input pressure via a variable displacement hydraulic pump to keep the power constant. For a variable displacement hydraulic motor, a further variable resistor is connected in parallel with the above resistor, whose value is adjusted in dependence on the displacement of the motor.
GB3030866A 1966-07-06 1966-07-06 Computing Apparatus Expired GB1197184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3030866A GB1197184A (en) 1966-07-06 1966-07-06 Computing Apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3030866A GB1197184A (en) 1966-07-06 1966-07-06 Computing Apparatus

Publications (1)

Publication Number Publication Date
GB1197184A true GB1197184A (en) 1970-07-01

Family

ID=10305588

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3030866A Expired GB1197184A (en) 1966-07-06 1966-07-06 Computing Apparatus

Country Status (1)

Country Link
GB (1) GB1197184A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598579A (en) * 1984-10-23 1986-07-08 Cordis Corporation Portable instrument to test pressure/flow of ventricular shunt valves

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598579A (en) * 1984-10-23 1986-07-08 Cordis Corporation Portable instrument to test pressure/flow of ventricular shunt valves

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees