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GB1469488A - Granular flow sensing and switching device - Google Patents

Granular flow sensing and switching device

Info

Publication number
GB1469488A
GB1469488A GB1968374A GB1968374A GB1469488A GB 1469488 A GB1469488 A GB 1469488A GB 1968374 A GB1968374 A GB 1968374A GB 1968374 A GB1968374 A GB 1968374A GB 1469488 A GB1469488 A GB 1469488A
Authority
GB
United Kingdom
Prior art keywords
probe
switching device
acoustic signal
flow sensing
granular flow
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
GB1968374A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1968374A priority Critical patent/GB1469488A/en
Publication of GB1469488A publication Critical patent/GB1469488A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/0006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances
    • G01P13/0073—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using vibrations generated by the fluid

Landscapes

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

Abstract

1469488 Sensing granular flow F A CHANDLER and T H BARNES 29 April 1975 [4 May 1974] 19683/74 Heading G1G [Also in Division H4] The flow of grain, e.g. in an elevator or conveyer, is detected by means of the acoustic signal produced when the grains impinge on a probe 6. The probe is coupled to a microphone 5 which converts the acoustic signal to an electrical output. This output is amplified and fed to a monitoring oscilloscope; also to a diode pump circuit which turns on a transistor switch when a threshold flow rate is exceeded. The switch actuates a timer or visual indicator. The microphone mounting includes cases 1, 3 and vibration-absorbent material 2, 4.
GB1968374A 1975-04-29 1975-04-29 Granular flow sensing and switching device Expired GB1469488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1968374A GB1469488A (en) 1975-04-29 1975-04-29 Granular flow sensing and switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1968374A GB1469488A (en) 1975-04-29 1975-04-29 Granular flow sensing and switching device

Publications (1)

Publication Number Publication Date
GB1469488A true GB1469488A (en) 1977-04-06

Family

ID=10133448

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1968374A Expired GB1469488A (en) 1975-04-29 1975-04-29 Granular flow sensing and switching device

Country Status (1)

Country Link
GB (1) GB1469488A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162338A (en) * 1983-07-15 1986-01-29 Dreyer Amazonen Werke H Gmbh & A method of determining and regulating the discharge quantity in a distributing machine
WO1986000996A1 (en) * 1984-07-18 1986-02-13 Rudiger Benkendorf Movement detection apparatus
AU585881B2 (en) * 1984-07-18 1989-06-29 Rita Benkendorf Movement detection apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162338A (en) * 1983-07-15 1986-01-29 Dreyer Amazonen Werke H Gmbh & A method of determining and regulating the discharge quantity in a distributing machine
WO1986000996A1 (en) * 1984-07-18 1986-02-13 Rudiger Benkendorf Movement detection apparatus
AU585881B2 (en) * 1984-07-18 1989-06-29 Rita Benkendorf Movement detection apparatus

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Legal Events

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