CambridgeIC’s resonant inductive technology simplifies the provision of position feedback inside a customer’s product.
It allows non-contacting position sensors to be built using conventional PCB technology. This means…
- Customers can build the sensor PCBs themselves, using their existing PCB fab, making them cost effective and convenient to make
- The same PCB can be used for the sensor, its processing and/or a customer’s other electronics, helping to reduce parts count and space
- The inherent accuracy of PCB technology directly translates to high sensor accuracy
- Sensors are robust and wear free
The moving part is marked with a target, including an inductor-capacitor resonator. Resonant inductive sensing allows big gaps between sensor and target, and substantial misalignments are possible before impacting performance, which means…
- Sensor parts can be mounted without requiring special alignment
- There is no need for a separate bearing to guide the target and keep it aligned to the sensor
- Sensor and target can be separately sealed inside their own plastic housings, eliminating the need for sliding seals
- Sensors and processing electronics do not need calibration
CambridgeIC develops and sells processor ICs, which connect to sensors and report the position of the moving target to a host processor with high precision and accuracy. The CAM204 and CAM312 chips can connect to more than one sensor, so only a single chip is needed for processing multiple sensors. This helps further reduce cost in a system requiring feedback from more than one sensor.
CambridgeIC has a library of standard sensor designs available, including linear, rotary and arc form factors. Sensors are absolute, so that no homing or refence mark is required. Samples available to buy for evaluation and prototyping.
CambridgeIC’s team started developing resonant inductive position sensing technology in 1995. We design sensors that are built from PCBs, which makes them precise, robust, suited to harsh environments and cost effective.