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A microinstrumentation system for industrial applications

Publication Type:

Conference Paper


Industrial Electronics, 1997. ISIE '97., Proceedings of the IEEE International Symposium on , Guimar{\~a}es, Portugal, 7-11 July 1997, Guimar{\~a}es, Portugal, p.846-850 (1997)



analogue-digital conversion computerised instrumentation data acquisition inertial navigation microcontrollers microsensors multichip modules peripheral interfaces reduced instruction set computing testing thermal variables measurement Integrated Smart Se


This paper describes the development of a microinstrumentation system
in silicon containing all the components of the data acquisition
system, such as sensors, signal-conditioning circuits, analog-digital
converter, interface circuits, sensor bus interface, and an embedded
microcontroller (MCU). The microinstrumentation system is to be fabricated
using the multi-chip-module (MCM) technology based on a chip-level
infrastructure. A standard silicon platform is the floorplan for
individual smart sensor die attachment and an on-chip local sensor
bus interface, testing facilities, optional compatible sensors (such
as thermal sensors). The microinstrumentation system is controlled
by a MCU with several modes of low-power operation (inclusive stand-by
mode). As the intended application requires a huge amount of data-processing,
a RISC-type MCU architecture is to be used. The MCU communicates
with the front-end sensors via a two-line (clock and data lines)
intramodule sensor bus (Integrated Smart Sensor bus). The sensor
scan rate is adaptive and can be event triggered. This upgraded version
of the ISS bus allows: service and interrupt request from the sensors,
test and calibration facilities. However, the additional functionality
requires a third line. The MCU also controls the power consumption
and the thermal budget of all systems. This paper also presents three
applications for the microinstrumentation system: condition monitoring
of machines, an inertial navigation system and a miniature spectrometer

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Research Area(s): 
Sensors and Actuators