About this item

The BF350 is a high-precision resistance strain gauge designed for accurate measurement of pressure, force, and strain in various applications such as weighing sensors and structural monitoring. Featuring a nominal resistance of 350 ohms, it uses a foil-type design with modified phenolic backing for excellent mechanical stability and durability. The sensing element consists of copper-nickel (CuNi) alloy wires known as constantan, which provide consistent electrical resistance changes when strain is applied, enabling precise detection of even minor deformations. This strain gauge can withstand strains up to 2%, making it suitable for both dynamic and static load measurements, and offers a fatigue life exceeding one million cycles for long-term reliability. Operating between -30 °C and +80 °C, it performs well under varying environmental conditions. With a sensitivity coefficient ranging from 2.00 to 2.20 and a resistance tolerance of ±0.1%, the BF350 ensures highly accurate and stable output. Its compact size of approximately 7.4 mm by 4.4 mm allows easy integration into custom sensors, including load cells and pressure measurement devices. Additionally, it features temperature self-compensation to minimize errors caused by temperature fluctuations, resulting in consistent and dependable performance. Overall, the BF350 is an ideal choice for precision instrumentation requiring reliable, repeatable strain measurements in demanding environments.