JPS5530777A - Fry counter - Google Patents

Fry counter

Info

Publication number
JPS5530777A
JPS5530777A JP10370278A JP10370278A JPS5530777A JP S5530777 A JPS5530777 A JP S5530777A JP 10370278 A JP10370278 A JP 10370278A JP 10370278 A JP10370278 A JP 10370278A JP S5530777 A JPS5530777 A JP S5530777A
Authority
JP
Japan
Prior art keywords
fry
sensor
stream
shadow
detects
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
JP10370278A
Other languages
Japanese (ja)
Inventor
Kan Tokunaga
Kazuhiro Ichinose
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP10370278A priority Critical patent/JPS5530777A/en
Publication of JPS5530777A publication Critical patent/JPS5530777A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

PURPOSE: To enable to count the number of fry, simply, quickly, and in high accuracy, by giving light downward the measuring stream and counting the shadow of fry caused with the photo sensors provided in the stream.
CONSTITUTION: Taking the angle of the arm 7 and the light source 5 intersecting the measuring stream 4 as θ, the velocity of water of the stream 4 as v1, and running speed of the photo sensor as v2, then θ=tan-1(v1/v2). If θ is set like this, the sensor 8 is as if it were at standstill to water flow. When the sensor 8 finishes the atream 4 with crossing over, the reset switch 10 immediately operates and it returns to original position in high speed (near the sprocket B1). Next, the sensor 8 detects the shadow of D for the next fry row delayed by the length of body of fry D and counts it. Thus, every time when the sensor 8 detects the number of projections of D, it is integrated with the counter 11 to accumulate the number of every fry row.
COPYRIGHT: (C)1980,JPO&Japio
JP10370278A 1978-08-25 1978-08-25 Fry counter Pending JPS5530777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10370278A JPS5530777A (en) 1978-08-25 1978-08-25 Fry counter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10370278A JPS5530777A (en) 1978-08-25 1978-08-25 Fry counter

Publications (1)

Publication Number Publication Date
JPS5530777A true JPS5530777A (en) 1980-03-04

Family

ID=14361078

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10370278A Pending JPS5530777A (en) 1978-08-25 1978-08-25 Fry counter

Country Status (1)

Country Link
JP (1) JPS5530777A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6361078U (en) * 1986-10-03 1988-04-22

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6361078U (en) * 1986-10-03 1988-04-22

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