Abstract: A MEMS-based alcohol sensor, comprising a MEMS technology-based alcohol measurement module, an MCU processor (12), a circuit substrate (10), and a housing (30) that covers the circuit substrate (10). The alcohol measurement module outputs a concentration signal to the MCU processor (12) by means of a sampling and amplification circuit module, the MCU processor (12) processes the concentration signal and then outputs an alcohol concentration value. The MEMS technology-based alcohol measurement module and the MCU processor (12) are integrated in the housing (30), so the entire alcohol sensor is small in size, and can be applied to a mobile phone, a wearable device, etc.

Abstract: An alcohol test method and apparatus. The alcohol test method comprises: receiving gas exhaled by a testee from a gas channel (S101); measuring an alcohol content in the gas according to the gas exhaled by the testee from the gas channel (S102); obtaining a gas alcohol concentration value according to the measured alcohol content in the gas (S103); and calculating an output alcohol concentration value according to the gas alcohol concentration value (S104). By means of a method for conveniently measuring the alcohol concentration, the alcohol concentration of the gas exhaled by the testee can be rapidly measured.