JPS5639420A - Diverted flow measurement control device for flow by critical flow velocity nozzle - Google Patents

Diverted flow measurement control device for flow by critical flow velocity nozzle

Info

Publication number
JPS5639420A
JPS5639420A JP11482379A JP11482379A JPS5639420A JP S5639420 A JPS5639420 A JP S5639420A JP 11482379 A JP11482379 A JP 11482379A JP 11482379 A JP11482379 A JP 11482379A JP S5639420 A JPS5639420 A JP S5639420A
Authority
JP
Japan
Prior art keywords
flow
shunt
course
duct
fluid
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
JP11482379A
Other languages
Japanese (ja)
Other versions
JPS6010565B2 (en
Inventor
Shiyuuta Yamawaki
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.)
TSUKASA SOTSUKEN KK
Tsukasa Sokken KK
Original Assignee
TSUKASA SOTSUKEN KK
Tsukasa Sokken 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 TSUKASA SOTSUKEN KK, Tsukasa Sokken KK filed Critical TSUKASA SOTSUKEN KK
Priority to JP11482379A priority Critical patent/JPS6010565B2/en
Publication of JPS5639420A publication Critical patent/JPS5639420A/en
Publication of JPS6010565B2 publication Critical patent/JPS6010565B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Measuring Volume Flow (AREA)
  • Details Of Flowmeters (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

PURPOSE: To increase the precision of measurement by arranging a plurality of shunt courses of a prearranged length to a course of fluid having an equal flow velocity distribution, connecting one shunt course to a course having a sonic noise with a variable area and measuring a flow with a changed area so that its flow may be equal to the flow of the other shunt course.
CONSTITUTION: A brace 3 is fixed at a right angle with a flow direction inside the duct 2 designed to allow the passage of a fluid 1 having an almost uniform flow velocity distribution, and also a plurality of shunt tubes 4, 5 of a fixed length are provided in the duct. One of the shunt tubes 5 is connected to the sonic nozzle 7 with a variable area with the assistance of duct 6. In addition, the said shunt tube is connected to the discharge tube 9 by way of pump 8. Inside the shunt tubes 4, 5, for instance, hot-wire anemometers 10, 11 are installed to detect the average value of the velocity of a fluid 1. The area for the sonic nozzle 7 is controlled by the servo device 13 so that the output difference of comparator 12 many become zero. Thus the accurate flow of shunt tube 5 is recorded by a measurement device 14. Under this constitution, it is possible to increase measurement precision with an extremely simple device.
COPYRIGHT: (C)1981,JPO&Japio
JP11482379A 1979-09-07 1979-09-07 Flow rate diversion measurement control device using a critical flow nozzle Expired JPS6010565B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11482379A JPS6010565B2 (en) 1979-09-07 1979-09-07 Flow rate diversion measurement control device using a critical flow nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11482379A JPS6010565B2 (en) 1979-09-07 1979-09-07 Flow rate diversion measurement control device using a critical flow nozzle

Publications (2)

Publication Number Publication Date
JPS5639420A true JPS5639420A (en) 1981-04-15
JPS6010565B2 JPS6010565B2 (en) 1985-03-18

Family

ID=14647570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11482379A Expired JPS6010565B2 (en) 1979-09-07 1979-09-07 Flow rate diversion measurement control device using a critical flow nozzle

Country Status (1)

Country Link
JP (1) JPS6010565B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60236033A (en) * 1984-05-09 1985-11-22 Toshiba Corp Measuring instrument of flow rate
JP2013502596A (en) * 2009-08-24 2013-01-24 パーティクル・メージャーリング・システムズ・インコーポレーテッド Particle sensor whose flow rate is monitored
US10983040B2 (en) 2013-03-15 2021-04-20 Particles Plus, Inc. Particle counter with integrated bootloader
US11169077B2 (en) 2013-03-15 2021-11-09 Particles Plus, Inc. Personal air quality monitoring system
US11579072B2 (en) 2013-03-15 2023-02-14 Particles Plus, Inc. Personal air quality monitoring system
US11835443B2 (en) 2014-04-30 2023-12-05 Particles Plus, Inc. Real time monitoring of particle count data
US11988591B2 (en) 2020-07-01 2024-05-21 Particles Plus, Inc. Modular optical particle counter sensor and apparatus

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60236033A (en) * 1984-05-09 1985-11-22 Toshiba Corp Measuring instrument of flow rate
JPH0352812B2 (en) * 1984-05-09 1991-08-13 Tokyo Shibaura Electric Co
JP2013502596A (en) * 2009-08-24 2013-01-24 パーティクル・メージャーリング・システムズ・インコーポレーテッド Particle sensor whose flow rate is monitored
US8800383B2 (en) 2009-08-24 2014-08-12 Particle Measuring Systems, Inc. Flow monitored particle sensor
US10983040B2 (en) 2013-03-15 2021-04-20 Particles Plus, Inc. Particle counter with integrated bootloader
US11169077B2 (en) 2013-03-15 2021-11-09 Particles Plus, Inc. Personal air quality monitoring system
US11519842B2 (en) 2013-03-15 2022-12-06 Particles Plus, Inc. Multiple particle sensors in a particle counter
US11579072B2 (en) 2013-03-15 2023-02-14 Particles Plus, Inc. Personal air quality monitoring system
US11913869B2 (en) 2013-03-15 2024-02-27 Particles Plus, Inc. Personal air quality monitoring system
US11835443B2 (en) 2014-04-30 2023-12-05 Particles Plus, Inc. Real time monitoring of particle count data
US11846581B2 (en) 2014-04-30 2023-12-19 Particles Plus, Inc. Instrument networking for optical particle counters
US11988591B2 (en) 2020-07-01 2024-05-21 Particles Plus, Inc. Modular optical particle counter sensor and apparatus

Also Published As

Publication number Publication date
JPS6010565B2 (en) 1985-03-18

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