Uniaxial Metal Foil Strain Gauge

SKU: SUCH-SG-AA

$12.91

● Resistance 120Ω/175Ω/350Ω/1000Ω ● Insulation resistance 10⁴ MΩ ● Average heat output coefficient 1 μm/m/℃ ● Fatigue life 10⁷ cycles (Room temp)

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Overview
Specs
Application
FAQ
Reviews

Overview

Uniaxial metal foil strain gauges are precision measuring elements composed of a highly sensitive resistor grid. They feature robust construction, excellent flexibility, and high measurement accuracy. Available in 120Ω, 175Ω, 350Ω, or 1000Ω resistance values, they offer insulation resistance up to 10⁴ MΩ, a fatigue life exceeding 10⁷ cycles, and an average thermal output coefficient of 1 μm/m/°C. SUCH metal foil strain gauges are widely used in mechanical measurements, stress analysis, high-temperature melt pressure sensors, and other applications requiring high-precision static or dynamic strain measurements.

Note: Various strain gauge models are available and support for customization. Please check with our customer service for detailed specs and pricing before ordering.

Strain Gauge Structure Diagram

Metal foil strain gauge diagram

Strain Gauge Model (Unit: mm)

Model	Grid Size	Backing Size
BF(BA)120-1AA	1.0×3.14	4.7×4.0
BF(BA)120-3AA	3.0×2.44	6.6×3.4
BF(BA)175-3AA	3.0×2.6	6.6×3.6
BF(BA)350-1AA	1.0×3.75	4.6×4.7
BF(BA)350-1.5AA	1.7×3.85	4.8×4.7
BF(BA)350-2AA	2.1×3.4	5.1×4.2
BF(BA)350-3AA	3.2×3.1	7.3×4.1
BF(BA)1000-2AA	2.1×4.0	5.1×5.0

Specs

Resistance in OHMs	120Ω, 175Ω, 350Ω, 1000Ω
Resistance Nominal Value Deviation	≤±0.5%
Resistance Average Value Tolerance	≤±0.1%
Sensitivity Coefficient	2.0-2.2
Sensitivity Average Value Dispersion	±1%
Average Heat Output Coefficient	1 μm/m/℃
Dispersion of Average Heat Output	≤30 μm/m/℃
Insulation Resistance	10⁴ MΩ
Fatigue Life (Room Temp)	≥10⁷
Backing Material	Phenolic (BF series)/ Polyimide (BA series)
Working Temperature	BF series: -30℃ to 80℃; BA series: -30℃ to 150℃

Application

Electronic Scale

Automation Equipment

Lifting Equipment

FAQ

Q1: What is the difference between uniaxial strain gauges and biaxial and triaxial strain gauges? ❯

Uniaxial strain gauges measure strain in only one direction (the principal axis) and have a simple structure and are easy to install. Biaxial and triaxial strain gauges can measure strain in two or three directions simultaneously and are commonly used for complex stress field analysis.

Q2: What environmental conditions should be considered when using strain gauges? ❯

The surface being measured should be kept clean, dry, and flat. Avoid strong vibration or high humidity that may affect the bonding quality. If used in a high-temperature environment, a high-temperature strain gauge and specialized adhesive should be used.

Q3: What types of strain gauges are there? ❯

Common strain gauges include metal foil, semiconductor, fiber optic, and vibrating wire types.

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Uniaxial Metal Foil Strain Gauge

Strain Gauge Structure Diagram

Strain Gauge Model (Unit: mm)

Electronic Scale

Automation Equipment

Lifting Equipment

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