GB672268A - Improvements relating to telemetering apparatus - Google Patents

Improvements relating to telemetering apparatus

Info

Publication number
GB672268A
GB672268A GB2078849A GB2078849A GB672268A GB 672268 A GB672268 A GB 672268A GB 2078849 A GB2078849 A GB 2078849A GB 2078849 A GB2078849 A GB 2078849A GB 672268 A GB672268 A GB 672268A
Authority
GB
United Kingdom
Prior art keywords
input
proportional
voltage
servomotor
aug
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
GB2078849A
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.)
Measurement Ltd
Original Assignee
Measurement 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 Measurement Ltd filed Critical Measurement Ltd
Priority to GB2078849A priority Critical patent/GB672268A/en
Publication of GB672268A publication Critical patent/GB672268A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems

Abstract

672,268. Electric telemetering systems. MEASUREMENT, Ltd., and HEWLETT, S. J. Aug. 3, 1950. [Aug. 10, 1949] No. 20788/49. Class 40 (i). In a telemetering system wherein a direct current input I, proportional to the variable concerned, is translated into pulses, of a frequency proportional to the D.C. intensity, for transmission, the input 11 produces a voltage drop E1 across a resistor R which is opposed by a voltage E2 derived from a tachogenerator b driven by a servomotor a. The current I2 produced by the voltage difference E1-E2 deflects a coil C (having no restoring spring) in a permanent magnetic field. The coil C through an induction regulator or a capacitor type voltage divider d as described in Specification 648,036, [Group XXXVI], varies the input to a power amplifier e the output 13 of which is applied to the servomotor a in the form of a watt hour meter, the other winding of which is fed from a separate A.C. source. The motor speed is automatically adjusted to a value proportional to the input D.C. I, and operates an impulsing device f to produce pulses at a frequency proportional to speed.
GB2078849A 1949-08-10 1949-08-10 Improvements relating to telemetering apparatus Expired GB672268A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2078849A GB672268A (en) 1949-08-10 1949-08-10 Improvements relating to telemetering apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2078849A GB672268A (en) 1949-08-10 1949-08-10 Improvements relating to telemetering apparatus

Publications (1)

Publication Number Publication Date
GB672268A true GB672268A (en) 1952-05-21

Family

ID=10151689

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2078849A Expired GB672268A (en) 1949-08-10 1949-08-10 Improvements relating to telemetering apparatus

Country Status (1)

Country Link
GB (1) GB672268A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6299356B1 (en) 1997-03-06 2001-10-09 Ntn Corporation Hydrodynamic type porous oil-impregnated bearing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6299356B1 (en) 1997-03-06 2001-10-09 Ntn Corporation Hydrodynamic type porous oil-impregnated bearing
US6513980B2 (en) 1997-03-06 2003-02-04 Ntn Corporation Hydrodynamic type porous oil-impregnated bearing
US6533460B2 (en) 1997-03-06 2003-03-18 Ntn Corporation Hydrodynamic type porous oil-impregnated bearing
US7059052B2 (en) 1997-03-06 2006-06-13 Ntn Corporation Hydrodynamic type porous oil-impregnated bearing

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