BLOOD ALCOHOL MONITOR

摘要

A monitor device (102) which measures ethanol levels expelled through a subject's skin to monitor blood alcohol level with a gas content sensor (218) at regular or random intervals. The device differentiates between a positive reading caused by an exter- nal, interferant, gas and a positive reading caused by consumption of alcoho l. The device has a temperature sensor (220) which monitory the skin temperature of the subject prior to performing the alcohol test to provide an indication of a barrier being placed between the device and the subject's skin or if the device has been removed from the subject. The device measures the distance from the object's skin by means of a distance sensor (222) thereby preventin g the subject from moving the device far enough away to provide an inaccurate indication of the amount of alcohol in the subject's blood and providing another tamper indication if the device is removed.