Strain Gauging

Y11

(Showa)

Applications:

Strain Gauges

Showa Strain Gauge Products

Features:

- Almost no effect on test object

- Distant and multi-point measurements are possible

- Applicable to both dynamic and static strains

- Both surfaces are completely laminated, the gauge grids are entirely protected

- The gauges have encapsulated leads for easy use

Standard Specifications:

Gauge Length: 0.3 mm min. to 60 mm max.

Measurable Strain: 2 to 4% max. Up to 10% with foil yielding strain gauges.

Temp. Range:

FA (Polyester Backing) -30C to 80C

MA (Polyimide Backing) -30C to 180C

Thermal Output:

FA within +/-2 uE/C (At room Temp. to 80C)

MA within +/-2 uE/C (At room Temp. to 160C)

MA within +/-5 uE/C (At 160C to 180C)

Gauge Factor Change with Temperature: Within +/-0.0015%/C

Gauge Resistance Tolerance: Within +/-0.5% of nominal resistance

Gauge Factor: 2.00 (Nominal)

Gauge Factor Tolerance:

Within +/-1% of the value indicated on the individual package for gauge lengths of 5mm to 60mm

Within +/-2% of the value indicated on the individual package for gauge lengths of 0.3mm to 3mm

Fatigue Life: More than 1E5 reversals at 1000E6 strain

Gauge Resistances: 120 Ohm, 350 Ohm & 1000 Ohm

Basic Patterns Sampled:

N

Normal Gauge

Y

Yielding Type for large strains ranging to plastic sphere. Designed not to cause stress concentration where leads are soldered.

C

Crack analysis. Gauge grids are arranged in parallel. Gauge resistance increases in the form of stairs when a crack takes place somewhere within the grids.

X

Crack Propagation Detection. With the lengthy grid of this gauge, cracks propagating extensively can be sensed.

P

Internal Surfaces of Pipes or Threaded Holes. The test object is perforated for

installation of this gauge.

W

Waterproof Moulded Type. Vinyl cable (2 parallel wires of 1 mm in external dia. resp.) is being connected with strain gauge and the gauge is moulded with special epoxy resins.

No special protection for waterproofing is necessary after its having been installed on the test object. This feature can be applied to all versions of the Nxx-FA series of gauge from 2mm to 10mm, except N34, N35, N51.