High Performance measurement module for frequencies

The Q.bloxx D107 is a new measurement module for the acquisition of frequencies and incremental signals.

Due to its fast signal conditioning capability with a clock speed of 288MHz, the new module is suitable for extreme measurement of rotational speeds, which were not previously possible in this price range.

Racing car engines can produce rotational speeds of up to 20,000rpm. The special challenge in measuring these speeds is the extremely rapid changes in rotation of up to 100,000 revs per second. It is therefore essential that the index gap in the gearwheel, used for recording purposes, comprises two missing teeth instead of one. A single missing tooth could be confused with a fast decrease in rotational speed.

The D107 module can detect the missing teeth at maximum speeds, and correct each measured value in real time. This contributes to stabilising the measured speed values, and readings are not influenced by the index gap.

Main features of the D107 measurement module:

  • Two galvanic isolated measurement channels, each with three differential or single-ended inputs
  • Adjustable switching thresholds from -20 V to +20V, thereby also suitable for inductive sensors with frequency-dependent amplitude
  • Input frequencies up to 1MHz. Frequencies can be measured continuously to <1Hz using the Chronos method
  • Suitable for measurement of frequency, PWM (pulse width modulation) and time, as well as for counter signals and quadrature decoders with zero reference.

The new digital D107 measurement module is available in standard versions:

As an EtherCAT module for rack mounting in a Q.brixx desktop housing or in a 19-inch rack in heights of 1U and 3U (rack units).

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