Dadmatrac electronics supplies switch tape equipment that are used to find out the speed, and acceleration of the vehicle by using the time logged vis preset distance. The logger is microprocessor-based having an alphanumeric display and a keypad for making entries. The parameters to be programmed are test type, number of switched tapes, distance between switch tapes, number of laps, etc. Once programmed the equipment is ready to conduct the test, the time is recorded to the 2nd decimal place and the parameter in m/sec or km/hr is displayed instantly. An audible beep from the logger signifies the end of the test and the results can be viewed again for each distance per lap after which the data can be erased. Until erased the data remains in the non-volatile memory of the logger. The equipment also has a provision for mock testing of the setup before commencing the actual test. Technical specifications include: size of the logger -8" [l] x 4" [w] x 1.75" [h]; operating voltage -12 v dc external source; current consumption -600 ma [max]; size of switch tape -0.04 m [w] x 1 m [l]; memory size -2k non-volatile; and time recorded [least count] -0.01 sec.
