The global Pencil Probes market size is predicted to grow from US$ million in 2025 to US$ million in 2031; it is expected to grow at a CAGR of %from 2025 to 2031.
Pencil Probes are designed for applications requiring very small contact surfaces, such as curved turbine blades or thickness measurements from inside pits. Pencil Probes are used for general NDT surface inspection. These eddy current sensors are available in absolute or differential mode. Shielded or unshielded coils are available in various frequencies.
There have been advancements in the technology and design of pencil probes to improve their accuracy, repeatability, and measurement capabilities. Manufacturers have developed probes with higher stiffness, smaller stylus tips, reduced mechanical hysteresis, and improved sensor technology to enhance measurement accuracy and provide more precise surface profiling. Pencil probes have been integrated into multi-sensor metrology systems that combine different measurement technologies in one setup. This integration allows for more comprehensive and versatile measurements by combining the capabilities of pencil probes with other sensors like optical systems, lasers, or vision systems, enabling a more complete inspection solution. While pencil probes are contact-based measurement devices, non-contact measurement methods such as laser scanning or vision systems have gained popularity in certain applications. However, pencil probes still find extensive use where physical contact measurement is necessary or preferred due to their simplicity, accuracy, and ability to measure certain features that may be difficult to capture using non-contact methods.