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Strain Meter

Strain Meter

2

3

7

4

6

-

+

IC3

741

1

5

COM

IC1

7805

1

3

OUTPUT

2

INPUT

+5V

IC1

7660

3

8

3

4

5

+

C1

220n

+9V

GND

-5V

R3

120Ω

R1

120Ω

R2

120Ω

R4

10K

R5

220K

VR2

10K

1V FSD

MULTIMETER

S1

ON/OFF

SWITCH

R7

22K

LO

STRAN

GAUGE

SG1

VR1

10K

R6

5.6K

HI

GAIN

FINE

COARSE

C4

10μ, 16V

C2

1μ, 16V

C3

10μ, 16V

Strain Meter

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0
0
publish time: 2020-09-24
Circuit Everyday

When an object such as a pillar on a crane changes its shape, this strain gauge shows whether the strain is compressed (decreased in length) or stretched (increased in length). The strain is detected by a strain gauge attached to the measured object. When the measured object changes, the resistance of the strain gauge will change the reading of the gauge.

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