JPS5790113A - Flow rate sensor - Google Patents

Flow rate sensor

Info

Publication number
JPS5790113A
JPS5790113A JP55166234A JP16623480A JPS5790113A JP S5790113 A JPS5790113 A JP S5790113A JP 55166234 A JP55166234 A JP 55166234A JP 16623480 A JP16623480 A JP 16623480A JP S5790113 A JPS5790113 A JP S5790113A
Authority
JP
Japan
Prior art keywords
optical fibers
fluid
lens array
rod lens
flow rate
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.)
Pending
Application number
JP55166234A
Other languages
Japanese (ja)
Inventor
Akira Kobayashi
Yoshio Shimada
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.)
Shimadzu Corp
Shimazu Seisakusho KK
Original Assignee
Shimadzu Corp
Shimazu Seisakusho KK
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 Shimadzu Corp, Shimazu Seisakusho KK filed Critical Shimadzu Corp
Priority to JP55166234A priority Critical patent/JPS5790113A/en
Publication of JPS5790113A publication Critical patent/JPS5790113A/en
Pending 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
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter

Landscapes

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

Abstract

PURPOSE:To obtain a flow rate sensor having a complete explosion-proofproperty as well as a high noise resistance, by arranging a plurality of input and output optical fibers in a fluid so that the end surfaces thereof respectively face to each other. CONSTITUTION:A rod lens array 4 and optical fibers 3 connected thereto are arranged at constant pitches so as to be in a row in the direction of the flow F of a fluid. The optical fibers 3 are alternately put together to form bundles 6 and 7. Photoelectric transducers d1, d2 are disposed at the end surfaces of the fiber bundles 6, 7 respectively. A rod lens array 4' and optical fibers 3' of the same arrangement are disposed facing to the above-mentioned rod lens array 4 and optical fibers 3. The optical fibers 3' are put together to form a bundle 5, and a light source L and a lens are disposed at the end surface thereof. Owing to the suspended matter (air bubbles may be included) in the fluid, the light incident from the input fiber bundle 5 forms a Moir e pattern on the rod lens array 4, and the velocity of the fluid is obtained from the varying period of the sum of the outputs of the photoelectric transducers d1 and d2. Thereby, it is possible to obtain a flow rate sensor having a complete explosion-proofproperty as well as a high noise resistance.
JP55166234A 1980-11-25 1980-11-25 Flow rate sensor Pending JPS5790113A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55166234A JPS5790113A (en) 1980-11-25 1980-11-25 Flow rate sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55166234A JPS5790113A (en) 1980-11-25 1980-11-25 Flow rate sensor

Publications (1)

Publication Number Publication Date
JPS5790113A true JPS5790113A (en) 1982-06-04

Family

ID=15827592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55166234A Pending JPS5790113A (en) 1980-11-25 1980-11-25 Flow rate sensor

Country Status (1)

Country Link
JP (1) JPS5790113A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59197825A (en) * 1983-04-26 1984-11-09 Mitsubishi Motors Corp Detector of intake quantity of engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59197825A (en) * 1983-04-26 1984-11-09 Mitsubishi Motors Corp Detector of intake quantity of engine

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