Full-Bridge Strain Gauge
  • Full-Bridge Strain Gauge

Full-Bridge Strain Gauges

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Product Description

BCM SENSOR full-bridge strain gauges are specially developed for manufacturing precision force transducers which employ bending beam working principle. For the purpose of this specific application, the full-bridge strain gauges are temperature and creep compensated, and they can be either encapsulated or open-face according to the requirement.

The karma gauges can be manufactured with effective modulus compensation (EMC). The EMC gauges are mostly for manufacturing low-cost force transducers, because with the EMC gauges the manufacturers can eliminate the use of compensation resistors and achieve the sensitivity compensation.

For creep compensation, there are 18 creep codes: “N10, N9, N8, …, O, …, P5, P6, P7″. The “N10” is the most negative creep code, while the “P7″ is the most positive one. The “O” stands for a moderate creep code. For a specific strain gauge, please find its available creep code below its dimensions at the “Option *9″ on the following pages. For a customized creep code, consult BCM SENSOR.

For more information on temperature compensation (STC), creep compensation, and EMC of strain gauges, please refer to the corresponding articles respectively on the website of BCM SENSOR.

Additional Information

Pattern

parallel full-bridge: FG(L), FG(BL), FG(CL), FF(L), FF(AL), FF(BL), FF(CL); 90º full-bridge: EB, EB(A), EB(B), EB(C), EB(D), EB(E)

Nominal Resistance

350Ω, …, 2000Ω

Backing Material

modified phenolic resin (F), modified polyimide resin (I), laminated polyetherketone (B), advanced laminated polyimide (A), laminated polyimide (L)

Working Temperature Range

-30~+80°C for backing F, -85~+150°C for backing I, -45~+150°C for backing B, -195~+200°C for backing A, -55~+150°C for backing L

Tolerance Of Resistance

<±0.1%

Gauge Factor

constantan: 2.1±0.1, karma: 2.03±0.17

Gauge Factor Dispersion

<±1%

Maximum Working Strain

±5000µε

Strain Limit

up to ±30000µε

Fatigue Life

>10^7 at 1000µε