Digital level sensor

The invention discloses a digital level sensor, which comprises a shell, wherein a circuit system, a suspension swinging component, a hydraulic micro displacement amplifying component and parallel light sources are arranged in the shell; the suspension swinging component comprises a swinging hammer, a T-shaped push rod and a swinging hammer revolving shaft; the swinging hammer is movably connected with the swinging hammer revolving shaft through the T-shaped push rod. The sensor is characterized in that digital signals are output, each sensing element outputs signals in the forms of switch pulses, and sampled data are only '0' and '1', so that the defect of fuzzy components in the conventional analog quantity detection way is overcome, the influences of various environment distribution parameters such as temperature, air pressure intensity, electric fields and magnetic fields are avoided, and the accuracy and reliability of detection are increased. Moreover, the digital level sensor is very high in resolution and accuracy, simple in structure and low in cost.