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Strain Gauge

Strain Gauge

Brand Introduce

Showa, the first strain gauge manufacturer who managed strain gauges in commercial basis and taught strain gauge techniques to provide 2 Japanese makers, such as Kyowa and TML around 50 years ago and is selling strain gauges to famous manufacturing companies such as GE worldwide and TOYOTA in domestic who are using Showa's gauges much more than other suppliers in Japan at present, was founded in 1969. The quality is absolutely worth being trusted. Hoping Chief SI will work with you together with Showa products soon.

 

Basic Structure

 

Standard Specifications

The following table is given to show the classification in accordance with the difference in materials of the strain gauges grid holding base. We classify the gauges into two categories.

One is the Polyester FA series, another is the Polyimide MA series. The FA series have abundant kinds of types and specifications and therefore are suitable for a wide range of strain measurements in general. On the other hand, the MA series is suitable for strain measurement at medium and high temperatures and for the use as the elements in various industrial or scientific sensors.

Specification

FA Series

MA Series

Unit and Note

Gauge Length

0.3mm to 60mm

0.3mm to 60mm

Standard

Gauge Resistance

Within±0.3%of the nominal resistance

Within±0.3%of the nominal resistance

120Ω to 1000Ω

Foil Material

A: Cu-Ni Alloy

A: Cu-Ni Alloy

 

Base Material

Polyester

Polyimide

 

Gage Factor

2.00(Nominal)

2.00(Nominal)

1.90 to 2.10

Measurable Strain

2 to 4% maximum

2 to 4% maximum

Up to 10% with yielding strain

Temperature Range

-30℃ to +80℃

-30℃ to +180℃

  

Thermal Output

±2μst/℃(RT to +80℃)

±2μst/℃(RT to +160℃)

±5μst/℃(+160℃ to higher)

Compensated temperature range

Gauge Factor Change with Temperature

±0.015%/℃

±0.015%/℃

Refer to“Tech information”

Fatigue Life

More than 1×10^5 reversals

More than 1×10^5 reversals

at ±1000×10^6 strain

Applicable Linear Expansion Coefficient

Common steel

Stainless steel

Aluminum alloy

Common steel

Stainless steel

Aluminum alloy

10.8ppm/℃

16.2ppm/℃

23.4ppm/℃

 

Configuration

Based on the basic characteristics of strain gauges such as the material, grid shape, grid length, gauge factor, nominal resistance, material against which strain gauge is self-temperature compensated, and so on.

Basic Patterns and Combinations

N

11

Uniaxial

N

22

Biaxial 0°/90°, stacked rosette

N

32

Triaxial 0°/45°/90°, stacked rosette

N

21

2-Element 0°/90°, plane layout

N

23

2-Element 0°, parallel layout

N

31

3-Element 0°/45°/90°.plane layout

N

34

△type 3-Element, plane layout

N

35

Y type 3-Element, plane layout

N

51

5-Element 90°, leads at one end

R

11

Uniaxial 90°, leads at one end

R

31

3-Element 90°, leads at one end

R

51

5-Element90°, lead at one end

T

11

Uniaxial 0°, leads at both ends

T

24

2-Element 0°/90°, leads at both ends

U

11

Uniaxial 90°, leads at both ends

Z

11

Uniaxial45°, for shearing strain

Z

23

2-Element±45°, for shearing strain

Q

44

4-Element, for pressure sensor

Y

11

Uniaxial, for yield strain

C

11

For crack analysis

X

11

For crack propagation detection

P

11

For bolt spindle power measurement
 

Compensated Materials(ppm/℃)
11

Common steel(11.7)

SUS630(10.6)

SNCM(11.3)

16

Stainless steel/SUS304(16.2)

Beryllium teel(16.7)

Copper(16.7)

23

Aluminum/2024-T4(23.2)

Brass(21.0)

Tin(23.0)

 
 

Optional Specifications/Leadwire

VS

E

Parallel vinyl-coated lead wire

Length

Select: 1m,3m,5m

Size

Φ0.12*7(round)

Resistance

0.44Ω/m(round)

VM

E

Parallel viny-coated lead wire

Length

Select: 3m,5m

Size

Φ0.12*10(core)

Resistance

0.32Ω/m(round)

VL

E

Parallel vinyl-coated lead wire

Length

Select: 3m, 5m

Size

Φ0.18*7(core)

Resistance

0.20Ω/m(round)

FE

---

Teflon-coated lead wire

Length

3m

Size

Φ0.18*7(core)

Resistance

0.20Ω/m(round)

L

---

Polyester-coated lead wire

Length

Select: 0.3m, 0.5m

Size

Φ0.14*1(core)

Resistance

2.24Ω/m(round)
W E Waterproof Moulded strain gage
Length Select: 1m, 3m
Size Φ0.12*7(core)
Resistance 0.44Ω/m(round)
  • These are the basic strain gages to be used for stress measurement

Kinds

Uniaxial Strain Gages

Biaxial Strain Gages

Triaxial Strain Gages

Stress Concentration Measurement

Pattern Code

N11

N22

N32

R11, N51, R51…

Lead wire pre-attached

N11…VS…

N22…VS…

N32…VS…

R11, N51, R51…VS…

Basic pattern

  • These are the basic strain gages to be used for stress measurement

Kinds

Uniaxial 45°

Crack Detection

Pipe Gage

Purpose

Shearing stress and torque measurement

Crack propagation detection and analysis

Bolt spindle power measurement

Pattern Code

Z11…

X11…

P11…

Basic pattern

Type

 

General Purpose

Strain Gage Pattern

Type

Nominal Resistance
（Ω）

Apporox Gage Fator

Dimension（mm）

Grid

Base

Length

Width

Length

Width

N11-FA-03-120-(11)

120

1.9

0.3

1.8

3.5

2.5

N11-FA-1-120-(11)

120

2.0

1.0

1.5

4.0

2.5

N11-FA-1-120-(11)-P4

120

2.0

1.0

1.0

4.0

2.0

N11-FA-1-350-(11)

350

2.0

1.0

2.4

5.0

4.0

N11-FA-2-120-(11)

120

2.0

2.0

1.6

6.0

2.5

N11-FA-2-350-(11)

350

2.0

2.0

2.2

7.0

3.5

N11-FA-3-120-(11)

120

2.1

3.0

1.6

7.0

2.8

N11-FA-5-120-(11)

120

2.1

5.0

1.8

9.5

3.5

N11-FA-5-350-(11)

350

2.1

5.0

2.6

11.0

4.0

N11-FA-5-1000-(11)

1000

2.1

5.0

3.2

9.5

5.0

N11-FA-8-120-(11)

120

2.1

8.0

2.0

13.0

4.0

N11-FA-8-350-(11)

350

2.1

8.0

4.0

14.0

6.0

N11-FA-10-120-(11)

120

2.1

10.0

2.2

15.0

5.0

N11-FA-10-350-(11)

350

2.1

10.0

4.5

18.0

6.5

N11-FA-10-600-(11)

600

2.1

10.0

3.0

16.0

5.0

N11-FA-10-1000-(11)

1000

2.0

10.0

4.5

16.0

6.0

N11-FA-30-120-(11)

120

2.1

30.0

1.2

40.0

4.5

N11-MA-03-120-(11)

120

1.9

0.3

1.8

3.5

2.5

N11-MA-1-120-(11)

120

2.0

1.0

1.5

4.0

2.5

N11-MA-1-120-(11)-P4

120

2.0

1.0

1.0

4.0

2.0

N11-MA-1-350-(11)

350

2.0

1.0

2.4

5.0

4.0

N11-MA-2-120-(11)

120

2.0

2.0

1.6

6.0

2.5

N11-MA-2-350-(11)

350

2.0

2.0

2.2

7.0

3.5

N11-MA-3-120-(11)

120

2.1

3.0

1.6

7.0

2.8

N11-MA-5-120-(11)

120

2.1

5.0

1.8

9.5

3.5

N11-MA-5-350-(11)

350

2.1

5.0

2.6

11.0

4.0

N11-MA-5-1000-(11)

1000

2.1

5.0

3.2

9.5

5.0

N11-MA-8-120-(11)

120

2.1

8.0

2.0

13.0

4.0

N11-MA-8-350-(11)

350

2.1

8.0

4.0

14.0

6.0

N11-MA-10-120-(11)

120

2.1

10.0

2.2

15.0

5.0

N11-MA-10-350-(11)

350

2.1

10.0

4.5

18.0

6.5

N11-MA-10-600-(11)

600

2.1

10.0

3.0

16.0

5.0

N11-MA-10-1000-(11)

1000

2.0

10.0

4.5

16.0

6.0

N22-FA-1-120-(11,16,23)

120

2.0

1.0

1.5

Φ6.0

N22-FA-2-120-(11,16,23)

120

2.0

2.0

1.6

Φ8.0

N22-FA-5-120-(11,16,23)

120

2.1

5.0

1.8

Φ11.0

N22-FA-5-350-11

350

2.1

5.0

2.6

Φ15.0

N22-FA-8-120-(11,16,23)

120

2.1

8.0

2.0

Φ15.0

N22-FA-10-120-(11,16,23)

120

2.1

10.0

2.2

Φ18.0

N22-MA-1-120-(11,16,23)

120

2.0

1.0

1.5

Φ6.0

N22-MA-2-120-(11,16,23)

120

2.0

2.0

1.6

Φ8.0

N22-MA-5-120-(11,16,23)

120

2.1

5.0

1.8

Φ11.0

N22-MA-5-350-11

350

2.1

5.0

2.6

Φ15.0

N32-FA-1-120-(11,16,23)

120

2.0

1.0

1.5

Φ6.0

N32-FA-2-120-(11,16,23)

120

2.0

2.0

1.6

Φ8.0

N32-FA-5-120-(11,16,23)

120

2.1

5.0

1.8

Φ11.0

N32-FA-5-350-11

350

2.1

5.0

2.6

Φ16.0

N32-FA-8-120-(11,16,23)

120

2.1

8.0

2.0

Φ16.0

N32-FA-10-120-(11,16,23)

120

2.1

10.0

2.2

Φ18.0

N32-MA-2-120-(11,16,23)

120

2.0

2.0

1.6

Φ8.0

N32-MA-5-120-(11,16,23)

120

2.1

5.0

1.8

Φ11.0

N32-MA-5-350-11

350

2.1

5.0

2.6

Φ16.0

N51-FA-1-120-(11,16,23)

120

2.0

1.0,

1.5

12.0

4.0

N51-FA-2-120-(11,16,23)

120

2.0

2.0

1.6

15.0

6.0

N51-MA-1-120-(11,16,23)

120

2.0

1.0

1.5

12.0

4.0

N51-MA-2-120-(11,16,23)

120

2.0

2.0

1.6

15.0

6.0

R11-FA-1-120-(11,16,23)

120

2.0

1.0

2.2

5.5

3.0

R11-FA-2-120-(11,16,23)

120

2.0

2.0

1.8

6.0

3.5

R11-MA-1-120-(11,16,23)

120

2.0

1.0

2.2

5.5

3.0

R11-MA-2-120-(11,16,23)

120

2.0

2.0

1.8

6.0

3.5

R51-FA-03-120-(11,16,23)-P4

120

2.0

0.3

1.2

6.0

5.0

R51-FA-1-120-(11,16,23)

120

2.0

1.0

0.5

11.0

4.0

R51-FA-2-120-(11,16,23)

120

2.0

2.0

0.8

15.0

4.5

R51-MA-03-120-(11,16,23)-P4

120

2.0

0.3

1.2

6.0

5.0

R51-MA-1-120-(11,16,23)

120

2.0

1.0

0.5

11.0

4.0

R51-MA-2-120-(11,16,23)

120

2.0

2.0

0.8

15.0

4.5

T24-FA-2-120-(11,16,23)

120

2.0

2.0

2.5

8.0

6.0

T24-FA-5-120-(11,16,23)

120

2.1

5.0

6.0

20.0

15.0

T24-FA-5-350-11

350

2.1

5.0

6.0

20.0

15.0

T24-MA-2-120-(11,16,23)

120

2.0

2.0

2.5

8.0

6.0

T24-MA-5-120-(11,16,23)

120

2.1

5.0

6.0

20.0

15.0

T24-MA-5-350-11

350

2.1

5.0

6.0

20.0

15.0

Z11-FA-1-120-(11,16,23)

120

2.0

1.0

3.9

5.0

2.5

Z11-FA-2-120-(11,16,23)

120

2.0

2.0

4.0

13.0

5.0

Z11-FA-5-120-11

120

2.0

5.0

2.6

15.0

10.0

Z11-FA-10-120-11

120

2.1

10.0

5.0

26.0

16.0

Z11-MA-1-120-(11,16,23)

120

2.0

1.0

3.9

5.0

2.5

Z11-MA-2-120-(11,16,23)

120

2.0

2.0

4.0

13.0

5.0

Z11-MA-5-120-11

120

2.0

5.0

2.6

15.0

10.0

Z11-MA-10-120-11

120

2.1

10.0

5.0

26.0

16.0

P11-FA-05-120-11

120

1.9

0.5

---

Φ1.0×3.0

P11-FA-2-120-11

120

2.1

2.0

---

Φ1.5×7.0

P11-FA-3-120-11

120

2.1

3.0

---

Φ2.0×10.0

P11-MA-3-120-11

120

2.1

3.0

---

Φ2.0×10.0

For normal temperature (FA type)

Strain Gage Pattern

Type

Nominal Resistance
（Ω）

Apporox Gage Fator

Dimension（mm）

Leadwire Length
（m）

Grid

Base

Length

Width

Length

Width

N11-FA-03-120-(11)-VSE03

120

1.9

0.3

1.8

3.5

2.5

0.3

N11-FA-03-120-(11)-VSE1

120

1.9

0.3

1.8

3.5

2.5

1.0

N11-FA-03-120-(11)-VSE3

120

1.9

0.3

1.8

4.0

2.0

3.0

N11-FA-03-120-(11)-VSE5

120

1.9

0.3

1.8

4.0

2.0

5.0

N11-FA-1-120-(11)-P4-VSE03

120

2.0

1.0

1.0

4.0

2.0

0.3

N11-FA-1-120-(11)-P4-VSE1

120

2.0

1.0

1.0

4.0

2.0

1.0

N11-FA-1-120-(11)-P4-VSE3

120

2.0

1.0

1.0

4.0

2.0

3.0

N11-FA-1-120-(11)-P4-VSE5

120

2.0

1.0

1.0

4.0

2.0

5.0

N11-FA-2-120-(11)-VSE03

120

2.0

2.0

1.6

6.0

2.5

0.3

N11-FA-2-120-(11)-VSE1

120

2.0

2.0

1.6

6.0

2.5

1.0

N11-FA-2-120-(11)-VSE3

120

2.0

2.0

1.6

6.0

2.5

3.0

N11-FA-2-120-(11)-VSE5

120

2.0

2.0

1.6

6.0

2.5

5.0

N11-FA-5-120-(11)-VSE03

120

2.1

5.0

1.8

9.5

3.5

0.3

N11-FA-5-120-(11)-VSE1

120

2.1

5.0

1.8

9.5

3.5

1.0

N11-FA-5-120-(11)-VSE3

120

2.1

5.0

1.8

9.5

3.5

3.0

N11-FA-5-120-(11)-VSE5

120

2.1

5.0

1.8

9.5

3.5

5.0

N22-FA-1-120-(11)-VS03

120

2.0

1.0

1.5

Φ6.0

0.3

N22-FA-1-120-(11)-VS1

120

2.0

1.0

1.5

Φ6.0

1.0

N22-FA-1-120-(11)-VS3

120

2.0

1.0

1.5

Φ6.0

3.0

N22-FA-1-120-(11)-VS5

120

2.0

1.0

1.5

Φ6.0

5.0

N22-FA-2-120-(11)-VS03

120

2.0

2.0

1.6

Φ8.0

0.3

N22-FA-2-120-(11)-VS1

120

2.0

2.0

1.6

Φ8.0

1.0

N22-FA-2-120-(11)-VS3

120

2.0

2.0

1.6

Φ8.0

3.0

N22-FA-2-120-(11)-VS5

120

2.0

2.0

1.6

Φ8.0

5.0

N22-FA-5-120-(11)-VS03

120

2.1

5.0

1.8

Φ11.0

0.3

N22-FA-5-120-(11)-VS1

120

2.1

5.0

1.8

Φ11.0

1.0

N22-FA-5-120-(11)-VS3

120

2.1

5.0

1.8

Φ11.0

3.0

N22-FA-5-120-(11)-VS5

120

2.1

5.0

1.8

Φ11.0

5.0

N32-FA-1-120-(11)-VS03

120

2.0

1.0

1.5

Φ6.0

0.3

N32-FA-1-120-(11)-VS1

120

2.0

1.0

1.5

Φ6.0

1.0

N32-FA-1-120-(11)-VS3

120

2.0

1.0

1.5

Φ6.0

3.0

N32-FA-1-120-(11)-VS5

120

2.0

1.0

1.5

Φ6.0

5.0

N32-FA-2-120-(11)-VS03

120

2.0

2.0

1.6

Φ8.0

0.3

N32-FA-2-120-(11)-VS1

120

2.0

2.0

1.6

Φ8.0

1.0

N32-FA-2-120-(11)-VS3

120

2.0

2.0

1.6

Φ8.0

3.0

N32-FA-2-120-(11)-VS5

120

2.0

2.0

1.6

Φ8.0

5.0

N32-FA-5-120-(11)-VS03

120

2.1

5.0

1.8

Φ11.0

0.3

N32-FA-5-120-(11)-VS1

120

2.1

5.0

1.8

Φ11.0

1.0

N32-FA-5-120-(11)-VS3

120

2.1

5.0

1.8

Φ11.0

3.0

N32-FA-5-120-(11)-VS3

120

2.1

5.0

1.8

Φ11.0

5.0

For high temperature (MA type)

Strain Gage Pattern

Type

Nominal Resistance
（Ω）

Apporox Gage Fator

Dimension（mm）

Leadwire Length
（m）

Grid

Base

Length

Width

Length

Width

N11-MA-03-120-(11)-FE3

120

1.9

0.3

1.8

3.5

2.5

3.0

N11-MA-1-120-(11)-P4-FE3

120

2.0

1.0

1.0

4.0

2.0

3.0

N11-MA-2-120-(11)-FE3

120

2.0

2.0

1.6

6.0

2.5

3.0

N11-MA-5-120-(11)-FE3

120

2.1

5.0

1.8

9.5

3.5

3.0

5 stations gauge with lead wire

Strain Gage Pattern

Type

Nominal Resistance
（Ω）

Apporox Gage Fator

Dimension（mm）

Leadwire Length
（m）

Grid

Base

Length

Width

Length

Width

R51-FA-1-120-11-VM3(Lead wire 5 colors)

120

2.0

1.0

0.5

11.0

4.0

3.0

Resin coated copper wire gauge

Strain Gage Pattern

Type

Nominal Resistance
（Ω）

Apporox Gage Fator

Dimension（mm）

Leadwire Length
（m）

Grid

Base

Length

Width

Length

Width

N11-FA-1-120-11-P4-L05

120

2.0

1.0

1.0

4.0

2.0

0.5

N11-FA-2-120-11-L05

120

2.0

2.0

1.6

6.0

2.5

0.5

Z11-FA-1-120-11-L05

120

2.0

1.0

3.9

5.0

2.5

0.5

Z11-FA-1-120-11-L08

120

2.0

1.0

3.9

5.0

2.5

0.8

Z11-FA-1-120-11-L1

120

2.0

1.0

3.9

5.0

2.5

1.0

Y11-FA-2-120-11-L05

120

2.0

2.0

1.7

7.5

3.5

0.5

R51-FA-1-120-11-L03

120

2.0

1.0

0.5

11.0

4.0

0.3

N51-FA-1-120-11-L03

120

2.0

1.0

1.5

12.0

4.0

0.3

Crack gauge with lead wire

Strain Gage Pattern

Type

Nominal Resistance
（Ω）

Apporox Gage Fator

Dimension（mm）

Leadwire Length
（m）

Grid

Base

Length

Width

Length

Width

X11-FA-5-120-VSE3

120

---

5.0

1.7

11.0

4.0

3.0

X11-FA-10-120-VS3

120

---

10.0

0.25

14.0

3.0

3.0

X11-FA-30-120-VSE3

120

---

30.0

0.7

35.0

4.0

3.0

X11-FA-30-120-VS3

120

---

30.0

0.7

35.0

4.0

3.0

Other types of gauges can be downloaded on the icon of spec. at the upper right on this web page.

Or, if you require the ability for special use, it is welcome to contact us.

 


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