capacitive sensor
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Microchip Enhances Robotic Tactile Sensing with High-Speed Capacitance Digitizer Reliable robotic manipulation requires more than vision, particularly when handling soft, fragile or irregular objects. Cameras can locate an object, but tactile sensing provides the contact information needed to determine how firmly it is held and whether it is beginning to slip. Microchip Technology (Nasdaq: MCHP) has introduced the ATFCD52 high-speed capacitance digitizer to convert signals… |
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This $32 Open-Source PCB Encoder Measures Position to 40 µm Using the Same Trick as Your Digital Calipers Cheap digital calipers hide a clever capacitive encoder inside, and Nick Steele (nichlock) has turned that idea into an open-source linear scale you can build yourself. It is just two PCBs, a sensor board with an STM32L4 and a passive copper "reflector" strip, sliding about 0.1 mm apart. The maker rates it at 40 µm accuracy against a Mitutoyo digital indicator, and the build costs roughly $32… |
