A method of calibrating a sensor of a materials tester, wherein said sensor is arranged to measure a shear force applied by a tool of said materials tester to a sample, for example a wafer or a printed circuit board, said materials tester comprising a shear sensor mount, wherein said sensor is mountable on said shear sensor mount, wherein said method comprises the steps of accelerating said shear sensor mount over a predefined distance towards and/or away from said sample; measuring, by said sensor, a relative movement of said shear sensor mount; calibrating said measured relative movement to an acceleration of said shear sensor mount, thereby testing operation of said sensor.

A none-compression internal combustion rotor motor and method to eliminate all of the disadvantages of the presently available internal combustion engines. By eliminating the compression stroke, increasing the efficiency. By replacing the crank shaft, the valve train and the cast iron parts with the main rotor, the combustion pressure can be converted into much higher rotational power and torque and efficiency. By having less parts, and by manufacturing from aluminum, eliminating all of the cast iron parts, reducing the manufacturing energy consumption. By having only balanced rotating parts that rotate on bearings without touching each other, greatly increasing the lifetime of the motor. The none-compression internal combustion rotor motor is air cooled needing no coolant, making it environmentally friendly.

A device capable of detecting motion, specifically extremely small amounts of motion (micro motion), this device also provides real driving safety and protection from carjacking and theft. it also offers protection from accidents and false alarms. it triggers high power LEDS and a chirping sound during an occasional driver's mistake to warn nearby drivers and pedestrians that a vehicle is fast approaching and/or turning and hard braking, everyone knows that real safety can be achieved only if everybody around is aware of the dangerous situation, it navigates drivers to develop diligent driving habits by detecting risky vehicle operation, in which case it shuts down only the safety driving protection temporarily until safe driving is restored, this device rewards safe drivers by protecting them. If the vehicle is carjacked or has been stolen then the system triggers an alarm and a sign call 911 during unauthorized driving, but if the vehicle stops then the alarm stops, if the vehicle starts moving again the alarm starts again. when the vehicle is parked and a intruder tries to enter the vehicle the system triggers a warning no one can ignore. all of the above in one device the new micro motion warning device with false alarm prevention system.