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FR2328209A1 - Seed drill sensor with two complementary housing sections - has seed duct between transparent plastic and incorporates light source with sensor and impulse transmitter - Google Patents

Seed drill sensor with two complementary housing sections - has seed duct between transparent plastic and incorporates light source with sensor and impulse transmitter

Info

Publication number
FR2328209A1
FR2328209A1 FR7531848A FR7531848A FR2328209A1 FR 2328209 A1 FR2328209 A1 FR 2328209A1 FR 7531848 A FR7531848 A FR 7531848A FR 7531848 A FR7531848 A FR 7531848A FR 2328209 A1 FR2328209 A1 FR 2328209A1
Authority
FR
France
Prior art keywords
sensor
seed
cavity
leads
diode
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
FR7531848A
Other languages
French (fr)
Other versions
FR2328209B1 (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.)
Dickey John Corp
Original Assignee
Dickey John Corp
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 Dickey John Corp filed Critical Dickey John Corp
Priority to FR7531848A priority Critical patent/FR2328209A1/en
Publication of FR2328209A1 publication Critical patent/FR2328209A1/en
Application granted granted Critical
Publication of FR2328209B1 publication Critical patent/FR2328209B1/fr
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
    • A01C7/10—Devices for adjusting the seed-box ; Regulation of machines for depositing quantities at intervals
    • A01C7/102—Regulating or controlling the seed rate
    • A01C7/105—Seed sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Led Device Packages (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

The seed sensor consists of two housing halves (50, 51) each of which has a cavity (56, 57). The first cavity (56) has a circuit section consisting of a lighting diode and resistor. The second cavity (57) contains the other electronic circuit-section. The housing halves have ducts for leads joining the resistor and diode. On the inner sides of the housing halves (50, 51) are several lengthwise ridges (60, 61) running outside the end surfaces of the diode (23a) and light sensitive transistors (27a). The ridges diode (23) and transistors (27a) are coated with transparent epoxy material (62, 63). A printed circuit board (70) is mounted on a pin (71) inside the first cavity (56). Inserted through the board (70) are leads (74) fixed by soldered connections (72, 73). A circuit section (22a) on a printed circuit board (84) is carried by two supports (86, 87) and has inserted through it leads (81) of the transistors (27a) attached by soldered connection (80). One lead (100) leads to the outside.
FR7531848A 1975-10-17 1975-10-17 Seed drill sensor with two complementary housing sections - has seed duct between transparent plastic and incorporates light source with sensor and impulse transmitter Granted FR2328209A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7531848A FR2328209A1 (en) 1975-10-17 1975-10-17 Seed drill sensor with two complementary housing sections - has seed duct between transparent plastic and incorporates light source with sensor and impulse transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7531848A FR2328209A1 (en) 1975-10-17 1975-10-17 Seed drill sensor with two complementary housing sections - has seed duct between transparent plastic and incorporates light source with sensor and impulse transmitter

Publications (2)

Publication Number Publication Date
FR2328209A1 true FR2328209A1 (en) 1977-05-13
FR2328209B1 FR2328209B1 (en) 1979-07-27

Family

ID=9161332

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7531848A Granted FR2328209A1 (en) 1975-10-17 1975-10-17 Seed drill sensor with two complementary housing sections - has seed duct between transparent plastic and incorporates light source with sensor and impulse transmitter

Country Status (1)

Country Link
FR (1) FR2328209A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469759A1 (en) * 1979-11-07 1981-05-22 Dickey John Corp SEED PASSAGE CONTROL APPARATUS FOR SEEDER

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ELECTRONIC ENGINEERING, VOL. 45, NO. 545, JUILLET 1973, LONDRES A.POTTON: "LOW-COST SHAFT SPEED MONITOR", PAGES 49 ET 50) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469759A1 (en) * 1979-11-07 1981-05-22 Dickey John Corp SEED PASSAGE CONTROL APPARATUS FOR SEEDER

Also Published As

Publication number Publication date
FR2328209B1 (en) 1979-07-27

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