LEVELMATIC

ANALOG INCLINATION MEASURING SENSORS "LEVELMATIC 31" and "LEVELMATIC C"

LEVELMATIC 31 and LEVELMATIC C analog sensors are analog sensors with an analog voltage / current output signal. This sensors have specifically been developed to be mounted on machines. Since the sensors are mounted in a tight, weatherproof, and shock-resistant housing, inclination measurements are possible even under difficult conditions. The sensors are easy to use, and requires little in technical know-how.

LEVELMATIC 31
LEVELMATIC C

1. Family of LEVELMATIC sensors

The LEVELMATIC sensors have established themselves in the market as the benchmark when it comes to high precision measurement in demanding applications with analog output. The LEVELMATIC-family of sensors features the following characteristics:

  • High resolution and high precision
  • Excellent temperature stability
  • Measuring range of ±2 mRad to ±20 mRad, respectively ±15° and ±30°
  • High immunity to shock
  • High immunity to electromagnetic fields
  • Simple handling

2. LEVELMATIC 31 and LEVELMATIC C

Common characteristics of the two sensors:

  • The measuring element is based on a pendulum swinging between two electrodes. Depending on the inclined position of the system, the pendulum will change its position in relation to the electrodes and in so doing, the capacitance between the pendulum and the electrodes will change.
  • The sensor cell is completely encapsulated and thus protected against changes in humidity
  • The output of the measuring value is a voltage which can be measured with commercially available electrical measuring instruments.

Swiss Made

 

Difference in characteristics of the two sensors:

  • The pendulum of the LEVELMATIC 31 is larger, which provides a significantly better signal-to-noise ratio for smaller inclinations. The LEVELMATIC 31 is therefore better suited for high precision  applications where only small inclinations are measured.
  • The mass of the pendulum of the LEVELMATIC C is smaller than the one of the LEVELMATIC 31. This provides a higher stability if the sensor is permanently inclined
  • LEVELMATIC C has a wider measuring range
  • The LEVELMATIC C has an additional current loop output with 4..20mA The following list of  characteristics should allow a proper differentiation and proper application of the 2 sensors:

 

The following list of characteristics should allow a proper differentiation and proper application of the 2 sensors:

LEVELMATIC 31

  • High resolution, high precision for inclinations up to ±20 mRad (roughly 1.15°)
  • Excellent signal-to-noise ratio
  • Excellent repeatability
  • Excellent linearity
  • Good temperature stability
  • Maximum inclination corresponds to an output of ±2000mV

LEVELMATIC C

  • Excellent precision for inclinations up to ±30°
  • Supply voltage can be chosen between ±12 V and ±18 V DC
  • Excellent repeatability
  • Excellent long-term stability in inclined position
  • Excellent linearity
  • Excellent temperature stability
  • Maximum inclination corresponds to an output voltage of ±1V, ±2.5V, or ±5V and an output current of 4..20 mA

Calibration Certificate:

LEVELMATIC-sensors can be delivered with an internationally recognised Calibration Certificate against a surcharge

Various

Also the following expressions are common for an inclination sensor:

  • Tilt sensor
  • Analog inclinometer
  • Analog inclination sensor
  • Analog inclinometer
  • Analog inclinometer sensor

LEVELMATIC 31

LEVELMATIC C

MACHINE TOOLS / ANGULAR POSITIONING ERROR OF A- AND C-AXIS

Measuring task / Goal:
Measure deviation from anticipated angle on different angular positions. As the centre of the axis of rotation is often not accessible, an additional challenge is added to the task. In many cases the measured values are entered in the CNC controller for corrective action. In order to include errors due to mass of the machine components, the measurement should therefore be collected near by the cutting position. Uncertainty of measurement should not be greater than 1 to max. 2 Arcsec.

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