E-Strip® Peening Intensity Sensor - Linearity, Variability And Connectivity

This paper presents the E-Strip®, a novel electronic sensor developed by Shockform to digitally measure shot peening intensity at the part level. Motivated by the limitations of traditional Almen strips—namely, manual handling, time consumption, and susceptibility to human error—the E-Strip® offers a faster, more reliable, and connected alternative. Extensive testing confirmed the E-Strip® output maintains excellent linearity with Almen intensity across a wide range of media and impact levels (R² > 0.997), and its adjustable sensitivity ensures compatibility from low to high intensities. Variability studies showed the E-Strip® provides similar or better consistency than Almen strips at low intensities, although higher variability was observed at higher intensities due to the sensor’s greater responsiveness to process changes. Integrated wireless connectivity and an open API enable automated feedback and real-time process control in Industry 4.0 environments. These advantages position the E-Strip® as a transformative solution for modernizing peening operations.