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.


| Mechanical | |
|---|---|
| Input channel | 1 to 12 modules |
| Dimension | 82,5x42x (23+18 each module) mm |
| Weight | 150g + 80 each module |
| Case | IP64, 7075 (Ergal®) CNC machined aluminum |
| Operating Conditions | |
|---|---|
| Power supply | 6-27 V DC or 100-240V via optional AC adapter |
| Power Consumption | 17W per channel |
| Temperature range | -25-105°C ambient (storage -40-125°C) |
| Connectivity and Extra | |
|---|---|
| Connectors | BNC for signals, mini USB for programming, LEM0 B series for supply |
| Extra | customizable input range, USB upgradable firmware |
| Electrical Characteristics | |
|---|---|
| Input range | Double range up to 5.000pC or up to 28.000pC |
| Precision | 0,1% |
| Output range | -10~+10V with GND engine isolation for single-ended and differential acquisition system |
| Gain | user 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 Delay | 8us to 104us (depends to filter) |
| Noise | <1mV RMS (1Hz-400kHz) |
| Drift compensation | Cyclic drift compensation or continuous drift compensation |
| Time constant | User selectable: 1s to infinite |
| Isolation | 300V channel to channel, channel to ground isolation |
Via Terracini 2/c - 40131 Bologna - Italy
Tel. +39.051.9923806 / +39.051.0548470
Fax +39.051.0544839
info@alma-automotive.it
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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