Gyro sensors for measuring the rotation rate
Our gyro sensors are used on all types of rail vehicles to reliably detect curves by analyzing the rotation rate. These special inertial sensors are also called rotation rate sensors and measure the rotation speed of a body.
A micromechanical spring-mass system of the CoriSENS sensors uses the Coriolis force to detect rotation. It is highly insensitive to transverse forces caused by disturbing vibrations or mechanical noises. Offset compensation minimizes the natural drift effect of the gyroscope with a low-pass filter. Faster changes of the gyroscope output, e.g. a rotation due to curve movement, are fed directly to the sensor output and form the signal for curve acquisition.
Gyro sensors
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CoriSENS rotation rate sensors product overview
CoriSENS - Gyro sensors for measuring the rotation rate
CoriSENS is a uniaxial rotation rate sensor. It detects the angular velocity of rotation around its measuring axis based on MEMS technology. A spring-mass system continuously measures the deflection of a seismic mass, which is excited to vibrate at high frequency. This value is proportional to the angular velocity and is then output in the form of a 4-20 mA current signal or 0-10 V voltage signal.
Features
- Measuring range ±12 °/s (adjustable on request)
- Current output 4-20 mA
- Voltage output 0-10 V
- Protection class IP42
- Temperature range -40 to +85 °C
Curve detection - sensors to determine the optimal acceleration point
The CoriSENS rate of rotation sensor was developed to provide an effective way to detect driving through curves. CoriSENS measures the angular velocity of a train car's rotation around its vertical axis. These measured values are passed on to the train control system. If the angular velocity falls below a certain level, a signal can be given to the train driver indicating that the curve exit of the last wagon has been reached. This allows the train driver to accelerate safely again.
Benefits
- Relief of the train driver through effective assistance system
- Increased efficiency in training new train drivers
- Improving train safety, reducing accidents