An occupant protection system activates at least one reversible occupant protection device installed in a vehicle and allowed for a repetitive operation. The rollers comprise a length of prefabricated roller top conveyor chain mounted along a top surface of the conveyor frame. 0, and with a residence time of 20-100 h. The AFE circuit further includes an Analog to Digital Converter for generating digitized samples from the amplified samples; and a Digital Programmable Gain Amplifier for amplifying the digitized samples which are subsequently presented to a processor for further processing of the scanned image. In this method, a current density is increased at a predetermined increasing rate at a start of electroplating. Other computer program products, systems, and methods for detecting dropouts are presented in more embodiments.