DE1967081A1 - Semiconductor pressure transducer with linear output - has multivibrator generating frequency directly proportional to applied force and with temp. compensation - Google Patents

Semiconductor pressure transducer with linear output - has multivibrator generating frequency directly proportional to applied force and with temp. compensation

Info

Publication number
DE1967081A1
DE1967081A1 DE1967081A DE1967081A DE1967081A1 DE 1967081 A1 DE1967081 A1 DE 1967081A1 DE 1967081 A DE1967081 A DE 1967081A DE 1967081 A DE1967081 A DE 1967081A DE 1967081 A1 DE1967081 A1 DE 1967081A1
Authority
DE
Germany
Prior art keywords
temp
compensation
directly proportional
frequency directly
multivibrator
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
DE1967081A
Other languages
German (de)
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.)
SAUTER AUGUST GmbH
Original Assignee
SAUTER AUGUST GmbH
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 SAUTER AUGUST GmbH filed Critical SAUTER AUGUST GmbH
Priority to DE1967081A priority Critical patent/DE1967081A1/en
Priority claimed from DE19691943566 external-priority patent/DE1943566B2/en
Publication of DE1967081A1 publication Critical patent/DE1967081A1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/26—Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J45/00—Devices for fastening or gripping kitchen utensils or crockery
    • A47J45/10—Devices for gripping or lifting hot cooking utensils, e.g. pincers, separate pot handles, fabric or like pads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
    • B60C27/06—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables
    • B60C27/10—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables having tensioning means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
    • G01G3/14—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
    • G01G3/142—Circuits specially adapted therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/18—Measuring force or stress, in general using properties of piezo-resistive materials, i.e. materials of which the ohmic resistance varies according to changes in magnitude or direction of force applied to the material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

A measurement evaluation circuit has an astable multivibrator comprising a pair of transistors. The circuit is for the direct digital measurement of a force. It has a pressure sensitive semiconductor sensor in the charging circuit of a condenser. There is provision for automatic temp. compensation by alteration in the supply voltage of the current source or by altering the base bias of temp. dependent elements in the current source. The multivibrator gives a frequency directly proportional to the force being measured. Both detector elements (2, 3) and the temp. compensating element (4) are mounted on a semiconductor plate (1). A common connector (5) is large enough to introduce no effective extra resistance.
DE1967081A 1969-08-27 1969-08-27 Semiconductor pressure transducer with linear output - has multivibrator generating frequency directly proportional to applied force and with temp. compensation Pending DE1967081A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1967081A DE1967081A1 (en) 1969-08-27 1969-08-27 Semiconductor pressure transducer with linear output - has multivibrator generating frequency directly proportional to applied force and with temp. compensation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1967081A DE1967081A1 (en) 1969-08-27 1969-08-27 Semiconductor pressure transducer with linear output - has multivibrator generating frequency directly proportional to applied force and with temp. compensation
DE19691943566 DE1943566B2 (en) 1969-08-27 1969-08-27 Semiconductor pressure transducer with linear output - has multivibrator generating frequency directly proportional to applied force and with temp. compensation

Publications (1)

Publication Number Publication Date
DE1967081A1 true DE1967081A1 (en) 1977-07-28

Family

ID=25757837

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1967081A Pending DE1967081A1 (en) 1969-08-27 1969-08-27 Semiconductor pressure transducer with linear output - has multivibrator generating frequency directly proportional to applied force and with temp. compensation

Country Status (1)

Country Link
DE (1) DE1967081A1 (en)

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