Signal acquisition devices

Abstract

Embodiments of the present disclosure provide a signal acquisition device including a wearable object provided with a sensor, a sub-base, and a mother base fixed on the wearable object. The wearable object is configured to be worn on a user and acquire a physiological signal of the user via the sensor. The sub-base is configured to accommodate a circuit structure. The circuit structure includes a power supply circuit and a signal transmitter, the power supply circuit is configured to supply power to the sensor, and the signal transmitter is configured to send the physiological signal to an external device. The sub-base is detachably connected with the mother base. The mother base includes a transmission interface. When the mother base is connected with the sub-base, the circuit structure is electrically connected with the sensor via the transmission interface.