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Instrumentation Design, Control and Monitoring - UK

Instrumentation 1Analogue, instrumentation and control circuit design

We have a broad experience of instrument, control and signal circuit design using both integrated and discrete components. We commonly use PIC and embedded control technology. Applications have included high precision capacitance measurement, discrete 12-bit self calibrating DVM, ultrasonic gating, accelerometer motion assessment and industrial measurement nodes. Display systems up to VGA colour.

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Case Studies

Hand held portable monitoring instrument

Hand held equipment requires low power for long battery life. In this application a PIC 16c65 is used as an embedded controller to manage all the display, keyboard and power functions of this precision monitoring instrument whilst still drawing only a tiny amount of power (allowing many hours of use from a single PP3 size battery). All this functionality and 32 bit floating point arithmetic fits comfortably within the 4K code space of the PIC micro.


Instrumentation 2

Force and temperature gauge

Uses a PIC16C54 to provide control for a serial LCD driver interface and a serial ADC interface (12 bit 2 channel) with power management to provide long battery life. Surface mount passive components were used on the underside of a single sided PCB offering small size and low cost. Development unit shown.

NB: Strain gauge mechanics not shown.

 

Power speak' fieldbus system

Multi drop fieldbus based instrumentation / monitoring system for industrial use. Incorporates low cost management system running on a PC with trend analysis algorithms providing alarm functions. Instrument nodes monitor digital, analogue and temperature inputs. Outputs can be set for local alarms / indicators.

 

Instrumentation 3Remote instrument node for offshore strain gauge and measurement

Embedded PFGA logic and an 8051 micro-controller are used to provide a control interface between specialist strain gauges, analogue sensing circuitry and a DSP host monitoring system.

 


 

 

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