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Material: Glass

The application of bonded foil strain gage (gauge) sensors to glass can be problematic due to the smooth surface and the fact that surface abrasion is generally not allowed on glass or glass-like test articles (stress concentrations). In addition, the poor heat-sink rating of glass can contribute to excessive gage failures while soldering, so the use of pre-cabled gages, such as C2A-Series or gage series available with options P or P2, are highly recommended.

Micro-Measurements and Determining Glass Strength

One of the oldest American Society for Testing and Materials (ASTM) committees, Committee C14 on Glass and Glass Products, develops test standards for determining the mechanical properties of all types of glasses, including ceramics. ASTM C158 (Standard Test Methods for Strength of Glass by Flexure) provides test methodology for determining the modulus of rupture. The primary challenge using strain gage sensors on glass is surface preparation, which must be done carefully so as not to disturb the glass surface and alter strain readings.

 

Gage Designation

 

Typical Laboratory:

Gage Series: CEA, EA, C2A 

Self Temperature Compensation: 06

Gage Pattern: 125AC to 500UW

Resistance:  350

Options: P, P2, L, LE

Adhesive: M-Bond 200 or M-Bond AE-10

Instrumentation: P3, D4 or System 8000

 

Field/Outdoor Applications:

Gage Series: CEA, EA, C2A

Self Temperature Compensation: 06

Gage Pattern: 125AC to 500UW

Resistance:  350

Options: P, P2, L, LE

Adhesive: M-Bond AE-10

Instrumentation: P3, System 7000

 

 

Temps >180 deg F or long term​:

Gage Series: WK, SK

Self Temperature Compensation: 00, 03, 06

Gage Pattern: 125AC to 250BG

Resistance: 350

Options: W, SP35

Adhesive: M-Bond 600

Instrumentation: System 7000 or System 8000

 

 

To learn more, click on the “Contact an Expert” button.

 

 

 

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