Alfa Centauri

Charge Signal Conditioning Amplifier

Alfa Centauri is a Charge Signal Conditioning Amplifier designed for piezoelectric sensors (pressure, accelerometer, ecc) and for on-board application.
The mASTRO system can host up to 10 Alfa Centauri modules, to optimize the space utilization based on the application. Modules can be added at any time.
Alfa Centauri is designed for a wide variety of sensors with different sensitivities. Thanks to internal active electronics, Alfa Centauri supports an input range from 100pC to 28000pC. The typical application is for monitoring in-cylinder pressure of engines, especially in those applications where compactness is required (i.e. on-board vehicle and racing use).
A dedicated software is provided to configure sensor sensitivity and output amplitude for each channel. It’s also possible to configure output offset, filter, time constant and output type. The time constant is configurable, including auto drift compensation to reduce signal error and saturation problems.

Application

Application diagram of the Alfa Centauri product, showing system integration and main components

Key Features

  • Reduced dimensions, waterproofness and robustness allow installations in any situation
  • High accuracy over the full operating envelope (temperature and voltage)
  • Channel to channel insulation guarantees very low noise
  • Strong immunity to disturbances due to galvanic isolation between channels
  • Programmable with our software or free API
  • Easy firmware update for improvements and custom request
  • Modular with mASTRO platform
  • Custom channel development on request
  • Wide temperature operation: -25°C to 105°C
  • Auto drift compensation for in-cylinder engine pressure

Specifications

Mechanical
Input channel1 to 12 modules
Dimension82,5x42x (23+18 each module) mm
Weight150g + 80 each module
CaseIP64, 7075 (Ergal®) CNC machined aluminum
Operating Conditions
Power supply6-27 V DC or 100-240V via optional AC adapter
Power Consumption17W per channel
Temperature range-25-105°C ambient (storage -40-125°C)
Connectivity and Extra
ConnectorsBNC for signals, mini USB for programming, LEM0 B series for supply
Extracustomizable input range, USB upgradable firmware
Electrical Characteristics
Input rangeDouble range up to 5.000pC or up to 28.000pC
Precision0,1%
Output range-10~+10V with GND engine isolation for single-ended and differential acquisition system
Gainuser selectable output range, in bar/v
Output Offset-10~+10V (user selectable with 0,1V step)
Filter (low pass)10-150kHz (user selectable in 10kHz step)
Group Delay8us to 104us (depends to filter)
Noise<1mV RMS (1Hz-400kHz)
Drift compensationCyclic drift compensation or continuous drift compensation
Time constantUser selectable: 1s to infinite
Isolation300V channel to channel, channel to ground isolation

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Gli aiuti di Stato e gli aiuti de minimis ricevuti dalla nostra impresa sono contenuti nel Registro nazionale degli aiuti di Stato di cui all’art. 52 della L. 234/2012 e consultabili qui

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