Electronics Inc. TSP-3 #2 Almen Gage (Code #999147) is a precision digital instrument designed for measuring the arc height of Almen strips used in shot peening process verification.

During shot peening, metallic shot impacts the surface of an Almen strip, producing residual compressive stresses and causing the strip to curve. The TSP-3 measures the resulting arc height, providing data used in determining Almen intensity according to applicable test procedures.

The instrument features four precision support balls, a patented magnetic gripping system and positioning end stops to ensure accurate and repeatable placement of the test strip.

Its electronic digital indicator supports inch and metric measurements, a rotatable display and an integrated SPC data port for measurement recording.

According to the operating manual, the indicator can be configured for a resolution of 0.0001 inch. The metric display resolution is 0.001 mm. Display resolution should not be confused with overall measurement accuracy.

The TSP-3 is suitable for aerospace shot peening inspection, automotive component manufacturing, precision machining, industrial metal treatment and quality assurance applications.

Technical Specifications:

• Manufacturer: Electronics Inc.

• Model: TSP-3 #2 Almen Gage

• Product Code: 999147

• Instrument Type: Digital Almen Gage

• Measured Parameter: Almen Strip Arc Height

• Nominal Resolution: 0.0001 inch

• Metric Resolution: 0.001 mm

• Measurement Units: Inch / mm

• Display: Rotatable Digital Display

• Strip Holding System: Magnetic Grip

• Strip Positioning: Precision End Stops

• Support Structure: Four Precision Balls

• Data Interface: SPC Data Port

• USB Connectivity: Optional Interface Accessory

• Operating Temperature: 15.5–32°C

• Storage Temperature: −15.5 to 60°C

• Included Documentation: Certificate of Calibration to SAE J442

• Applicable Standards: SAE J442, AMS2430, SAE AMS2432, Boeing BAC5730

• Manufacturer Warranty: 1 Year

• Country of Manufacture: USA

Technical Notes:

The TSP-3 measures Almen strip curvature rather than directly measuring residual stress or independently determining shot peening intensity.

Almen intensity determination requires appropriate saturation curve testing and compliance with the relevant shot peening procedure.

Annual calibration is recommended by the manufacturer, or more frequently if the instrument is damaged or measurement accuracy is suspected to be compromised.