Disclosed is a method for measuring height in a vehicle by determining a distance between a vehicle chassis and a vehicle axle or parts connected thereto. In the method, a first device (12) with a first transmitter (13) and a first receiver (14) and a second device (15) with a second transmitter (16) and a second receiver (17) interact. In particular, the first transmitter (13) produces an electromagnetic field, and the second receiver (17) detects the electromagnetic field. The second device (15) with the second transmitter (16) produces a signal from the detected field and transmits the signal, which correlates with the distance from the first transmitter (13) to the second receiver (17). The first device (12) with the first receiver (14) receives the signal. A system, an electronically controlled pneumatic suspension, an electronic control unit, and a vehicle are also disclosed.

A position sensor may include an angle sensor, sensor shaft, and sensor wheel. The sensor wheel may include a first wheel-half, a second wheel-half, and a leg spring. The angle sensor may sense the rotation of the sensor shaft. The first wheel-half may be affixed to the sensor shaft. The first wheel-half may impart the rotations on the sensor shaft for sensing via a coupling with an external device, such as external threads of a ball screw nut. The second wheel-half may be supported by the sensor shaft and configured to rotate relative to the sensor shaft. The leg spring may torsionally couple the first wheel-half and the second wheel-half. The leg spring may cause the second wheel-half to an opposing lash of the external threads of the ball screw nut, thereby providing zero gear-lash.

A position sensor may include an angle sensor, sensor shaft, and sensor wheel. The sensor wheel may include a first wheel-half, a second wheel-half, and a leg spring. The angle sensor may sense the rotation of the sensor shaft. The first wheel-half may be affixed to the sensor shaft. The first wheel-half may impart the rotations on the sensor shaft for sensing via a coupling with an external device, such as external threads of a ball screw nut. The second wheel-half may be supported by the sensor shaft and configured to rotate relative to the sensor shaft. The leg spring may torsionally couple the first wheel-half and the second wheel-half. The leg spring may cause the second wheel-half to an opposing lash of the external threads of the ball screw nut, thereby providing zero gear-lash.

A method is provided for determining the diameter of a rotor of a turbomachine, rotor being equipped with rotor blades. The method involves setting the rotor with the rotor blade ring in rotation, arranging a clearance measuring device assigned to the rotor blade ring outside the region of the latter, measuring the distance to the rotor blades of the rotor blade ring which are rotating past the clearance measuring device, and using the measured distance for determining the diameter of the rotor. During measuring, the rotational speed is identical to, almost identical to or higher than the setpoint rotational speed of the rotor.

A method is provided for determining the diameter of a rotor of a turbomachine, rotor being equipped with rotor blades. The method involves setting the rotor with the rotor blade ring in rotation, arranging a clearance measuring device assigned to the rotor blade ring outside the region of the latter, measuring the distance to the rotor blades of the rotor blade ring which are rotating past the clearance measuring device, and using the measured distance for determining the diameter of the rotor. During measuring, the rotational speed is identical to, almost identical to or higher than the setpoint rotational speed of the rotor.

A snap-fit height sensor and a height sensor assembly. The snap-fit height sensor is fixed to a base by means of a mounting support. The height sensor comprises a sensor body and a swing arm capable of swinging relative to the sensor body. An engagement seat is provided on the sensor body, the engagement seat being capable of receiving the mounting support and being fitted and fixed to the mounting support. The snap-fit height sensor and height sensor assembly provided in the present utility model overcome the shortcomings in the prior art, such that the mounting support and sensor have a small mounting volume, a light weight and a low cost, with simple mounting steps, few components and high efficiency.

A snap-fit height sensor and a height sensor assembly. The snap-fit height sensor is fixed to a base by means of a mounting support. The height sensor comprises a sensor body and a swing arm capable of swinging relative to the sensor body. An engagement seat is provided on the sensor body, the engagement seat being capable of receiving the mounting support and being fitted and fixed to the mounting support. The snap-fit height sensor and height sensor assembly provided in the present utility model overcome the shortcomings in the prior art, such that the mounting support and sensor have a small mounting volume, a light weight and a low cost, with simple mounting steps, few components and high efficiency.

A belt drive comprises a first pulley with a first diameter and a second pulley with a second diameter as well as a belt which is arranged in each case on a lateral surface of the first and the second pulley and is configured to transmit a rotational movement of the first pulley to the second pulley. Furthermore, the belt drive has a first sensor assembly, which is arranged and configured to detect a rotational position of the first pulley, and a second sensor assembly, which is arranged and configured to detect a rotational position of the second pulley. The first diameter corresponds to a first integer multiple of a unit length and the second diameter corresponds to a second integer multiple of the same unit length, wherein the first and second integer multiples of the unit length are coprime.

A belt drive comprises a first pulley with a first diameter and a second pulley with a second diameter as well as a belt which is arranged in each case on a lateral surface of the first and the second pulley and is configured to transmit a rotational movement of the first pulley to the second pulley. Furthermore, the belt drive has a first sensor assembly, which is arranged and configured to detect a rotational position of the first pulley, and a second sensor assembly, which is arranged and configured to detect a rotational position of the second pulley. The first diameter corresponds to a first integer multiple of a unit length and the second diameter corresponds to a second integer multiple of the same unit length, wherein the first and second integer multiples of the unit length are coprime.

An alignment frame for affixing a sensor configured to measure one or more alignment angles to a wheel of a vehicle can include a pair of arms configured to contact a tire mounted on the wheel to support the alignment frame, a center base configured to receive a first bar, a second bar, and a third bar orthogonally aligned in a linear alignment such that the first bar is at ninety degrees from the horizontal axis defined by the second and the third bar, and a spacer positioned on each of the first, second, and third bars and configured to align the bars with a face of the rim so as to center the center base with respect to the rim of the wheel. The center base can receive a mounting portion of the sensor to center the sensor with the respect to the rim of the wheel.