Processes of determining torque output and controlling power impact tools using a torque transducer

1. An method comprising:

providing a sensor measuring a time varying force signal of a plurality of impacts;

calculating a torque from said time varying force signal;

providing a control system for receiving a torque data signal from the sensor; and

wherein the control system turns off a motor at a preselected torque level.

2. The method of claim 1 , wherein the sensor provides the torque data signal from an output shaft driven by an impact transmission mechanism driven by the motor.

3. The method of claim 1 , further including providing an input device for inputting the preselected torque level to the control system.

4. The method of claim 3 , wherein the input device is a keypad.

5. The method of claim 1 , further including the step of providing an output device connected to the control system for providing output data from the control system.

6. The method of claim 5 , wherein the output device is a liquid crystal display.

7. The method of claim 1 , further including the step of providing a power supply to supply power to the control system.

8. The method of claim 7 , wherein the power supply is chosen from the group consisting of a battery, a solar cell, a fuel cell, an electrical wall socket and a generator.

9. The method of claim 1 , wherein the control system further includes a switch to turn on or off the motor.

10. The method of claim 9 , wherein the switch comprises an electrical switch to turn on or off an electrical current to the motor.

11. The method of claim 9 , wherein the switch comprises a shut off valve for turning on or off a gas supply to the motor.

12. The method of claim 9 , further including an activation trigger for turning on the motor.

13. The method of claim 1 , wherein the motor comprises a pneumatic motor.

14. The method of claim 1 , wherein the motor is an electric motor.