GB2008257A - Heat Meters - Google Patents

Heat Meters

Info

Publication number
GB2008257A
GB2008257A GB7842478A GB7842478A GB2008257A GB 2008257 A GB2008257 A GB 2008257A GB 7842478 A GB7842478 A GB 7842478A GB 7842478 A GB7842478 A GB 7842478A GB 2008257 A GB2008257 A GB 2008257A
Authority
GB
United Kingdom
Prior art keywords
transducer
flow
flow rate
water
temperature difference
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.)
Granted
Application number
GB7842478A
Other versions
GB2008257B (en
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.)
ISS Clorius Ltd
Original Assignee
ISS Clorius 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 ISS Clorius Ltd filed Critical ISS Clorius Ltd
Priority to GB7842478A priority Critical patent/GB2008257B/en
Publication of GB2008257A publication Critical patent/GB2008257A/en
Application granted granted Critical
Publication of GB2008257B publication Critical patent/GB2008257B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K17/00—Measuring quantity of heat
    • G01K17/06—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device
    • G01K17/08—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device based upon measurement of temperature difference or of a temperature
    • G01K17/10—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device based upon measurement of temperature difference or of a temperature between an inlet and an outlet point, combined with measurement of rate of flow of the medium if such, by integration during a certain time-interval
    • G01K17/12—Indicating product of flow and temperature difference directly or temperature
    • G01K17/16—Indicating product of flow and temperature difference directly or temperature using electrical or magnetic means for both measurements
    • 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
    • G01F1/56—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 electric or magnetic effects
    • G01F1/58—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 electric or magnetic effects by electromagnetic flowmeters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Measuring Volume Flow (AREA)

Abstract

A heat meter comprises a transducer 6 for measuring the rate of flow of water through a conduit and a transducer 10 for measuring the temperature difference between two spaced locations of the conduit. The output of the flow rate transducer 6 is supplied as an input to the temperature difference measurement transducer 10 and the output of the temperature difference measurement transducer 10 is supplied to a digital display unit (14) via a sample and hold circuit 28 and an integrator 12 to display the amount of thermal power exchanged with the water between the two spaced locations. The flow rate transducer 6 is of the electromagnetic type in which a undirectional magnetic field is set up across the flow and a signal representing the flow rate is induced for a pair of place electrodes mounted in the flow (Figs. 4, 5, not shown). The flow rate transducer is compensated for supply voltage variations and polymerisation effects of the water. The temperature sensors comprise platinum filed sensors connected in a Wheatstone bridge circuit (Figs. 6, 7, not shown). <IMAGE>
GB7842478A 1977-10-31 1978-10-30 Heat meters Expired GB2008257B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7842478A GB2008257B (en) 1977-10-31 1978-10-30 Heat meters

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4524277 1977-10-31
GB7842478A GB2008257B (en) 1977-10-31 1978-10-30 Heat meters

Publications (2)

Publication Number Publication Date
GB2008257A true GB2008257A (en) 1979-05-31
GB2008257B GB2008257B (en) 1982-03-31

Family

ID=26265544

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7842478A Expired GB2008257B (en) 1977-10-31 1978-10-30 Heat meters

Country Status (1)

Country Link
GB (1) GB2008257B (en)

Also Published As

Publication number Publication date
GB2008257B (en) 1982-03-31

Similar Documents

Publication Publication Date Title
DE69005884D1 (en) Mass flow meter with temperature measuring probes.
ES2005406A6 (en) Detecting method and apparatus using heat sensitive devices
ATE38433T1 (en) ELECTRONIC MEASUREMENT DEVICE FOR SQUARE ROOT ERROR.
KR870003391A (en) Low Cost Self-Containing Transformerless Solid-State Electronic Total Power Meter with Thin Film Ferromagnetic Current Detector
ES8101271A1 (en) Apparatus for measuring a liquid level.
GB2008257A (en) Heat Meters
ATE189926T1 (en) IMPROVEMENT IN OR RELATING TO GAS METERS
DE68911767T2 (en) Heat flow meter.
SE7610151L (en) ELECTRONIC MEASUREMENT METER
GB2020426A (en) Chronocalorimeter system for measuring and reckoning exploited heat
GB1200461A (en) A method and apparatus for low-inertia or inertia-free temperature measurement
ATE4750T1 (en) HEAT METER.
SU571752A1 (en) Thermoanemometer
SU618658A1 (en) Heat quantity measuring device
SU545869A1 (en) Heat flow meter
RU2017166C1 (en) Magnetic-field intensity measuring instrument
SU539237A1 (en) Device for measuring environmental parameters
SU1154534A1 (en) Heat flowmeter
RU2030717C1 (en) Device for measuring temperature difference
JPS5565116A (en) Measuring unit for gas flow rate
SU866422A1 (en) Temperature measuring device
SU530182A1 (en) High Frequency Calorimetric Flowmeter
SU1046685A1 (en) Method of hot-wire anemometric measurements of flow velocity vector pulsation
FR2246846A1 (en) Linear flow meter based on thermodynamic laws - measures temp upstream and downstream of heat source in fluid flow
SU128561A1 (en) Photoelectric pressure meter in biological systems

Legal Events

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

Effective date: 19971030