Surveyor's wheel

The term measuring wheel is used for two types of measuring instruments.

Measuring wheels in the Survey

A measuring wheel is an odometer that serves the measurement of distances on level ground. It is rolled to a short forward shaft holding, along the measurement path.

The reading counts the complete revolutions ( current levels one to two meters) and the partial rotations - the latter depending on the accuracy of a few hundredths to thousandths. The display of the abgefahreren route by means of a counting mechanism. Usual display at the counter in m / cm / mm. Measuring wheels are available in uncalibrated and calibrated version. Modern instruments break the two readings immediately to a digital display (meters and centimeters ) around.

Depending on the type and care, one can thus decimeter to perform a distance measurement to the nearest centimeter.

Measuring wheels in vehicle technology

Under a measuring wheel and a gauge is understood with the can for the purpose of driving dynamics measurements forces and moments in the wheel hub of a vehicle ( usually car or truck) determine in all six Cartesian directions. The measurements are used for the design of landing gear. In passenger cars, all four wheels are equipped with measuring wheels during a test series usually ( 6 to 16 wheels) are in trucks for cost reasons mostly performed measurements sequentially.

A measuring wheel to pure distance measurement is the so-called fifth wheel or Peiselerrad, which is additionally attached to the vehicle.

• Dimensional gauge