IT1276382B1 - Circuit device for an anemometer - Google Patents

Circuit device for an anemometer

Info

Publication number
IT1276382B1
IT1276382B1 IT95TO000494A ITTO950494A IT1276382B1 IT 1276382 B1 IT1276382 B1 IT 1276382B1 IT 95TO000494 A IT95TO000494 A IT 95TO000494A IT TO950494 A ITTO950494 A IT TO950494A IT 1276382 B1 IT1276382 B1 IT 1276382B1
Authority
IT
Italy
Prior art keywords
voltage
bridge
difference
anemometer
transmitter
Prior art date
Application number
IT95TO000494A
Other languages
Italian (it)
Inventor
Otto Hoffer
Original Assignee
Otto Hoffer
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
Priority claimed from DE19934342235 external-priority patent/DE4342235C2/en
Priority claimed from DE1995120570 external-priority patent/DE19520570A1/en
Application filed by Otto Hoffer filed Critical Otto Hoffer
Publication of ITTO950494A0 publication Critical patent/ITTO950494A0/en
Publication of ITTO950494A1 publication Critical patent/ITTO950494A1/en
Application granted granted Critical
Publication of IT1276382B1 publication Critical patent/IT1276382B1/en

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  • Amplifiers (AREA)
  • Measuring Volume Flow (AREA)

Abstract

Circuit device for an anemometer of the constant temperature and constant temperature difference type, comprising, in a known way, a bridge circuit, in which one branch of the bridge includes a resistor operating as a function of the temperature, acting as a transmitter of the measured value, and the opposite branch of the bridge includes a comparison resistor, and also comprising a control circuit which amplifies and integrates the voltage difference between the voltage on the transmitter G and the voltage on the comparison resistor P and makes this voltage difference, when it has been amplified and integrated, available as a control voltage to a power transistor to provide continuous balancing of the bridge, characterized in that the balancing of the bridge is achieved by selecting a nodal voltage for the formation of the control voltage for the power transistor TR as a reference voltage, amplifying the voltage on the opposite node with an amplifier which must consist of at least one impedance transformer, and sending this amplified voltage difference as the input voltage to an integrator. <IMAGE>
IT95TO000494A 1993-12-10 1995-06-14 Circuit device for an anemometer IT1276382B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19934342235 DE4342235C2 (en) 1993-12-10 1993-12-10 Anemometer with a supply voltage
DE1995120570 DE19520570A1 (en) 1995-06-06 1995-06-06 Constant temp. anemometer and constant temp. difference anemometer

Publications (3)

Publication Number Publication Date
ITTO950494A0 ITTO950494A0 (en) 1995-06-14
ITTO950494A1 ITTO950494A1 (en) 1996-12-14
IT1276382B1 true IT1276382B1 (en) 1997-10-31

Family

ID=25931965

Family Applications (1)

Application Number Title Priority Date Filing Date
IT95TO000494A IT1276382B1 (en) 1993-12-10 1995-06-14 Circuit device for an anemometer

Country Status (1)

Country Link
IT (1) IT1276382B1 (en)

Also Published As

Publication number Publication date
ITTO950494A0 (en) 1995-06-14
ITTO950494A1 (en) 1996-12-14

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Legal Events

Date Code Title Description
0001 Granted