JPS5719633A - Pressure detector - Google Patents

Pressure detector

Info

Publication number
JPS5719633A
JPS5719633A JP9534580A JP9534580A JPS5719633A JP S5719633 A JPS5719633 A JP S5719633A JP 9534580 A JP9534580 A JP 9534580A JP 9534580 A JP9534580 A JP 9534580A JP S5719633 A JPS5719633 A JP S5719633A
Authority
JP
Japan
Prior art keywords
circuit
resistors
compensation circuit
diaphragm
detached
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
JP9534580A
Other languages
Japanese (ja)
Inventor
Masayuki Kataoka
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9534580A priority Critical patent/JPS5719633A/en
Publication of JPS5719633A publication Critical patent/JPS5719633A/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
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/02—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning
    • G01L9/04—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning of resistance-strain gauges
    • G01L9/045—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning of resistance-strain gauges with electric temperature compensating means

Abstract

PURPOSE:To simplify a manufacturing work and to improve reliability, by a method wherein a compensation circuit, which is provided with a plural number of resistors connected in series and in parallel, is connected to a diaphragm, and a part of resistors are detached from the circuit so as to produce a value to be compensated. CONSTITUTION:A diaphragm 1 is equalized by a circuit in which 4 resistors R1- R4 are connected in a bridge manner, and a detecting output is applied to an output end through a compensation circuit 2. Resistances R7a-R7c, R8a-R8c in the compensation circuit 2 consist of resistors, which are formed on a thick film substrate and have a resistance value of, for example, IMOMEGA, and compensate the temperature drift of the diaphragm. When a sufficient resistance value is not obtained by means of a connection as shown in a drawing, a connection (a mark x) between, for example, the resistances R7b and R7c is disconnected, the resistance R7c is detached from the circuit to increase the resistance value of the compensation circuit 2. Like this, the resistance is detached from the circuit corresponding to a temperature drift to be compensated, and this prevents the occurrence of a trouble on the reduction in reliability due to overtrimming and permits simplification of a manufacturing work.
JP9534580A 1980-07-10 1980-07-10 Pressure detector Pending JPS5719633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9534580A JPS5719633A (en) 1980-07-10 1980-07-10 Pressure detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9534580A JPS5719633A (en) 1980-07-10 1980-07-10 Pressure detector

Publications (1)

Publication Number Publication Date
JPS5719633A true JPS5719633A (en) 1982-02-01

Family

ID=14135084

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9534580A Pending JPS5719633A (en) 1980-07-10 1980-07-10 Pressure detector

Country Status (1)

Country Link
JP (1) JPS5719633A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5576922A (en) * 1978-12-06 1980-06-10 Tokyo Electric Co Ltd Load cell type weighing device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5576922A (en) * 1978-12-06 1980-06-10 Tokyo Electric Co Ltd Load cell type weighing device

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