The F14L-9 annular strain force sensor is designed with a hollow structure and a central through-hole diameter of 20.2mm, which can be used for shaft threading. It can be connected by threads on both sides, making integration very easy. It adopts special strain gauge technology, covering a wide range of angles, so it is insensitive to bending moment height and has high stiffness, making it suitable for both high dynamic and static measurement tasks. The F14L-9 force sensor is made of high-quality stainless steel or alloy steel, with high strength, good rigidity, and strict processing technology to ensure durability and high load-bearing capacity. The use of high flexibility, tensile strength, anti-interference cables and sensor internal design for anti-interference can greatly prevent electromagnetic interference.