CA1154118A - Dispositif d'alarme sensible a un taux de changement - Google Patents

Dispositif d'alarme sensible a un taux de changement

Info

Publication number
CA1154118A
CA1154118A CA000335872A CA335872A CA1154118A CA 1154118 A CA1154118 A CA 1154118A CA 000335872 A CA000335872 A CA 000335872A CA 335872 A CA335872 A CA 335872A CA 1154118 A CA1154118 A CA 1154118A
Authority
CA
Canada
Prior art keywords
signal
alarm
analogue
analogue signal
tracking
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
CA000335872A
Other languages
English (en)
Inventor
Nicolaas T. Van Der Walt
Bernardus J. Bout
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.)
Anglo American Corp of South Africa Ltd
Original Assignee
Anglo American Corp of South Africa 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 Anglo American Corp of South Africa Ltd filed Critical Anglo American Corp of South Africa Ltd
Priority to CA000335872A priority Critical patent/CA1154118A/fr
Application granted granted Critical
Publication of CA1154118A publication Critical patent/CA1154118A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Alarm Systems (AREA)
CA000335872A 1979-09-18 1979-09-18 Dispositif d'alarme sensible a un taux de changement Expired CA1154118A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000335872A CA1154118A (fr) 1979-09-18 1979-09-18 Dispositif d'alarme sensible a un taux de changement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000335872A CA1154118A (fr) 1979-09-18 1979-09-18 Dispositif d'alarme sensible a un taux de changement

Publications (1)

Publication Number Publication Date
CA1154118A true CA1154118A (fr) 1983-09-20

Family

ID=4115165

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000335872A Expired CA1154118A (fr) 1979-09-18 1979-09-18 Dispositif d'alarme sensible a un taux de changement

Country Status (1)

Country Link
CA (1) CA1154118A (fr)

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