Seeed Studio Wio-LR1121 is a tiny, multi-band LoRa module based on LR1121 RF transceiver, a low-cost version of LR1120 ...

A low-cost, simple, noncontact displacement sensor using the self-mixing effect inside a cw single-mode laser diode has been developed for modal analysis and defect detection. The resonance ...

By comparing the LDS with a high-precision coordinate measuring machine (CMM) in experiments, the LDS accuracy is significantly improved; the results show that the laser measuring system has the ...