NL1000222C2 - Temperature transducer with two sensing components - Google Patents

Temperature transducer with two sensing components

Info

Publication number
NL1000222C2
NL1000222C2 NL1000222A NL1000222A NL1000222C2 NL 1000222 C2 NL1000222 C2 NL 1000222C2 NL 1000222 A NL1000222 A NL 1000222A NL 1000222 A NL1000222 A NL 1000222A NL 1000222 C2 NL1000222 C2 NL 1000222C2
Authority
NL
Netherlands
Prior art keywords
transistors
sensing components
switches
temperature transducer
collectors
Prior art date
Application number
NL1000222A
Other languages
Dutch (nl)
Inventor
Gerard Cornelis Maria Meijer
Original Assignee
Stichting Tech Wetenschapp
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 Stichting Tech Wetenschapp filed Critical Stichting Tech Wetenschapp
Priority to NL1000222A priority Critical patent/NL1000222C2/en
Application granted granted Critical
Publication of NL1000222C2 publication Critical patent/NL1000222C2/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/01—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using semiconducting elements having PN junctions

Abstract

The transducer consists of two sensing components (9, 10), a current mirror circuit (11) and a current source (18). The sensors consist of NPN transistors, each of which is strapped as a diode, i.e. with the bases connected directly to the collectors. The current mirror circuit consists of five PNP transistors (16, 17, 18, 19, 20). The five bases of the transistors are linked together. The emitters are all commoned and connected to the positive d.c. supply. The collectors of four of the five transistors are connected to the wipers of mechanical switches (21, 22, 23, 24). The switches can select one of the sensors or the other. The mechanical switches can be replaced by electronic FET switches operated by an oscillator.
NL1000222A 1995-04-25 1995-04-25 Temperature transducer with two sensing components NL1000222C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL1000222A NL1000222C2 (en) 1995-04-25 1995-04-25 Temperature transducer with two sensing components

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1000222A NL1000222C2 (en) 1995-04-25 1995-04-25 Temperature transducer with two sensing components

Publications (1)

Publication Number Publication Date
NL1000222C2 true NL1000222C2 (en) 1996-10-28

Family

ID=19760936

Family Applications (1)

Application Number Title Priority Date Filing Date
NL1000222A NL1000222C2 (en) 1995-04-25 1995-04-25 Temperature transducer with two sensing components

Country Status (1)

Country Link
NL (1) NL1000222C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999000650A1 (en) * 1997-06-30 1999-01-07 Maxim Integrated Products, Inc. Temperature measurement with interleaved bi-level current on a diode and bi-level current source therefor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4636092A (en) * 1984-06-19 1987-01-13 Hegyi Dennis J Diode thermometer
EP0406174A2 (en) * 1989-06-28 1991-01-02 Centre Suisse D'electronique Et De Microtechnique S.A. Integrated temperature sensor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4636092A (en) * 1984-06-19 1987-01-13 Hegyi Dennis J Diode thermometer
EP0406174A2 (en) * 1989-06-28 1991-01-02 Centre Suisse D'electronique Et De Microtechnique S.A. Integrated temperature sensor

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
MEIJER G C M ET AL: "A THREE-TERMINAL INTEGRAED TEMPERATURE TRANSDUCER WITH MICROCOMPUTER INTERFACING", SENSORS AND ACTUATORS, vol. 18, no. 2, 15 June 1989 (1989-06-15), pages 195 - 206, XP000117024 *
MEIJER G C M ET AL: "AN ACCURATE BIOMEDICAL TEMPERATURE TRANSDUCER WITH ON-CHIP MICROCOMPUTER INTERFACING", IEEE JOURNAL OF SOLID-STATE CIRCUITS, NEW YORK, NY, US, vol. 23, no. 6, pages 1405 - 1410, XP000002065 *
MEIJER G C M ET AL: "NEW CONCEPTS FOR SMART SIGNAL PROCESSORS AND THEIR APPLICATION TO PSD DISPLACEMENT TRANSDUCERS", SENSORS AND ACTUATORS A, vol. A35, no. 1, 1 October 1992 (1992-10-01), pages 23 - 30, XP000312354 *
RUIZ-VAZQUEZ M C ET AL: "LINEAR THERMOMETRY USING BIPOLAR TRANSISTOR-BASED SENSORS", SENSORS AND ACTUATORS A, vol. A29, no. 3, 1 December 1991 (1991-12-01), pages 171 - 178, XP000265923 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999000650A1 (en) * 1997-06-30 1999-01-07 Maxim Integrated Products, Inc. Temperature measurement with interleaved bi-level current on a diode and bi-level current source therefor

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Legal Events

Date Code Title Description
PD2B A search report has been drawn up
VD1 Lapsed due to non-payment of the annual fee

Effective date: 19991101