Automatic detection system for petroleum product acid value measuring apparatus

An automatic detection system for a petroleum product acid value measuring apparatus belongs to the technical field of petroleum product analytical instruments. A sample cup (10) is arranged on a sample tray (5) and made of transparent materials. Photosensitive measuring elements are oppositely arranged at two sides of the sample cup (10). The automatic detection system is characterized in that a detector comprises an extract liquor adding detector, a neutralization liquor adding detector and a washing device which are respectively communicated with the sample cup (10) by pipes, dropping openings of the pipes are arranged above the sample cup (10), and high-speed photoelectric couples (9) are correspondingly arranged right below the dropping openings of the pipes and are connected with a microprocessor. The automatic detection system changes traditional metering and detecting modes, realizes the functions of automatic liquor addition, automatic measurement, automatic metering, automatic washing, automatic cal