Semiconductor Strain Gauges
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Semiconductor  Strain  Gauges - 1

Semiconductor Strain Gauges Description Based on piezoresistive effect, BCM SENSOR semiconductor strain gauges (ScSG) are made from p-type silicon wafers, and manufactured in two series: naked-series (SN-series) and backing-series (SB-series). There are 4 different gauge lengths available as options. For SN-series, there is only one type of lead configuration, because the leads from two ends of ScSG is flexible and able to be bent. For SB-series, there 3 different lead configurations available as options. For the details of the lead configuration, please refer to Lead Length and Lead Configuration in this datasheet. The gauges of different gauge factors and electrical resistances are available in stock for quick delivery. The dispersion of resistance for ScSG's packed in one package is listed below in this datasheet. Application Notes 1) SN-series has no backing so its creep effect can be ignored, while SB-series has backing resulting in creep effect in load cell application. 2) The gauge length is different among different series. Gauges with shorter length are suitable for bonding to a smaller surface. Nevertheless, as long as the strain in question is distributed in a bigger area, it is better to use the gauge with longest gauge length to pick up as much as possible the strain of interest. 3) General speaking, as long as the gauge does not break, it can be used to bond to a curved surface. Also the gauge length is better to be shortter the gauge length of 2.6mm is the shortest among all BCM ScSG’s, either the SN-series or SB-series with 2.6mm gauge length should be purchased for application with a curved surface. Ordering Information gauge resistance in ohms gauge length in mm gauge type strain sensitivity lead type S B - 350 - 3 - P - 1 S: silicon B: backed gauge N: naked gauge P: positive This digit is necessary only if the gauge is with backing. 1 - leads extending crystal, along two gauge ends 2 - leads perpendicular to crystal, in one gauge side 3 - leads parallel to crystal BCM SENSOR TECHNOLOGIES BVBA Industriepark Zone 4, Brechtsebaan 2 website: www.bcmsensor.com B-2900 Schoten - Antwerpen, BELGIUM email: sales@bcmsensor.com

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Semiconductor  Strain  Gauges - 2

Semiconductor Strain Gauges Technical Data Terms and symbols which you will encounter: #: Indication of lead type (or lead finishing), i.e., the option (6) which is only applicable to SB-type strain gauges. R: nominal resistance in Ohms (measured @ 23°C). Backing dimensions: this specification is only applicable to SB-type strain gauges. GF: gauge factor (or strain sensitivity) (measured @ 23°C). TCR: temperature coefficient of resistance. TCGF: temperature coefficient of gauge factor. . 2.6mm Gauge Length: SB-R-2.6-P-#, SN-R-2.6-P Technical Specifications R (Ω) operating temperature range...

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Semiconductor  Strain  Gauges - 3

Semiconductor Strain Gauges . 3.8mm Gauge Length: SB-R-3.8-P-#, SN-R-3.8-P Technical Specifications R (Ω) operating temperature range (°C) fatigue life (cycle) Gauge Type B: with backing N: naked gauge Gauge Dimensions Length x Width x Thickness (mm) 3.8 x 0.2 x 0.05 3.8 x 0.2 x 0.05 3.8 x 0.2 x 0.05 3.8 x 0.2 x 0.04 3.8 x 0.2 x 0.04 3.8 x 0.2 x 0.04 3.8 x 0.2 x 0.04 3.8 x 0.2 x 0.03 3.8 x 0.2 x 0.03 Option (6) Lead Type Backing Dimensions Length x Width x Thickness (mm) BCM SENSOR TECHNOLOGIES BVBA Industriepark Zone 4, Brechtsebaan 2 website: www.bcmsensor.com B-2900 Schoten - Antwerpen,...

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Semiconductor  Strain  Gauges - 4

Semiconductor Strain Gauges . 5mm Gauge Length: SB-R-5-P-#, SN-R-5-P Technical Specifications R (Ω) fatigue life (cycle) Gauge Type B: with backing N: naked gauge operating temperature range (°C) Gauge Dimensions Length x Width x Thickness (mm) 5 x 0.32 x 0.07 5 x 0.32 x 0.06 5 x 0.32 x 0.05 5 x 0.30 x 0.05 5 x 0.28 x 0.04 5 x 0.26 x 0.04 5 x 0.26 x 0.04 5 x 0.26 x 0.03 5 x 0.24 x 0.03 Option (6) Lead Type Backing Dimensions Length x Width x Thickness (mm) Note: All listed gauge specifications and physical dimensions are subject to change without prior notice. Resistance Tolerance or...

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Semiconductor  Strain  Gauges - 5

Semiconductor Strain Gauges Lead Length and Lead Configuration Type 1 Lead Configuration: Type 2 Lead Configuration: Type 3 Lead Configuration: BCM SENSOR TECHNOLOGIES BVBA Industriepark Zone 4, Brechtsebaan 2 Tel.: +32-3-238 6469 website: www.bcmsensor.com B-2900 Schoten - Antwerpen, BELGIUM Fax: +32-3-238 4171 email: sales@bcmsensor.com

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