Applications

 

Experience at Augustus Design includes instrumentation for ultrasound, infrared, and magnetic

measurement, RF circuit design, fiber optic circuit design, precision LED intensity control, and EMI

measurement and suppression.

 

High Sensitivity Magnetic Ink Print Inspection Subsystem

Precision Benchtop Magnetic Measurement Device

Ultrasonic Phased-Array Medical Imaging Subsystem

Ultrasonic Transceiver / Data Acquisition for Bone Analysis

Fiber Optic TDR Spread Spectrum Transceiver

Fiber Optic Fluorescence Measurement System 

Programmable Illumination Control for Laboratory Microscopy

High Intensity Pulsed IR/Visible LED Arrays for Print Inspection

Sensor and Control Electronics for Robotic Applications 

Low Frequency Medical/Industrial Infrared Temperature Scanners 

Infrared Sensor and Circuitry Development 

RF Multi-channel SAW Oscillator/Mixer

EMI Analysis and Reduction in Medical Instrumentation

Audio Recording Digitizer

   

 

High Sensitivity Magnetic Ink Print Inspection Sensor Circuits

      GMR magnetic sensor array

      Low noise differential amplifier circuitry

      Servo loop / field generator for local nulling of magnetic interference

 

 

Precision Benchtop Magnetic Measurement Device

      Low drift, precision 24-bit delta sigma data acquisition system

      ROM table waveform generation for Hall effect sensor operation

      Sensor output demodulation using synchronous detection

      Embedded control with filtering and  true RMS DSP

      Programmable gain stages with calibration correction

      Algorithms for linearization/temperature compensation of sensors

      Keypad / display user interface, menu driven operation

 

 

Ultrasonic Phased-Array Medical Imaging Subsystem

      Programmable gain and filtering with auto-nulling offset

      Log and exponential amplifiers, voltage controlled attenuation

      SSB AM mixing and processing

 

 

Ultrasonic Transceiver / Data Acquisition for Bone Analysis

      Transmit and receive circuits for piezoelectric transducers

      Burst mode 30MHz 12 bit A/D conversion with FIFO buffering  

      Dual axis stepper motor driver for sensor positioning

      PC bus (EISA) interface

 

 

Fiber Optic TDR Spread Spectrum Transceiver

      Analysis of interference/noise reduction using spread spectrum transmissions

      IR transmitter with spread spectrum modulation (850nm and 1300nm wavelengths)

      Low noise, wide dynamic range PIN diode transmipedance receiver

      Receive spectrum de-spreading using analog correlator/mixer

      A/D conversion and analog processing with microprocessor interface/control

 

 

Fiber Optic Fluorescence Measurement System

      State machine / microcode for data acquisition and strobe flash operation

      16-bit data acquisition system with high ground current rejection

      PIN diode receiver detection of sensor flourescence

 

 

Programmable Illumination Control for Laboratory Microscopy

      Multi-channel, precision, voltage controlled LED current drivers

      Multi-channel DAC matrix for individual current drive control

      Embedded control, RS232 / SPI communication links

      Digital calibration and compensation of LED/circuit parameters

      Component specification for low drift vs temperature

 

 

High Intensity Pulsed IR/Visible LED Arrays for Print Inspection Illumination

      LED performance modeling and analysis to optimize array geometry

      Pulsed LED current drives with temperature stabilized illumination intensity

      IR/ visible transmission analysis of materials for calibration standardization

     

 

 

Sensor and Control Electronics for Robotic Applications

      Analysis / characterization of custom IR sensors for proximity detection

      IR transceiver circuits with high ambient signal rejection

      PWM drives for DC motor control

      Optimized parts cost and performance for high volume production

      Ultra-low cost medium accuracy A/D converter circuits

 

 

Low Frequency Medical/Industrial Infrared Temperature Scanners

      Hand held, embedded control measurement devices

      Circuitry optimized for high volume manufacturing / calibration

      Pulse-width modulated (PWM) A/D conversion

      High gain, auto-nulling amplifiers with digitally compensated offset and drift

 

Infrared Sensor and Circuitry Development

      Modeling, simulation, analysis, and fabrication of novel IR/thermal sensor technologies

      High sensitivity, low noise, low thermal drift, sub-microvolt amplifiers

      4-20mA current loop interfaces, cold junction references

 

 

RF Multi-channel SAW Oscillator/Mixer

      SAW oscillator analysis and design, 100MHz-300MHz

      High frequency transistor amplifier analysis and design

      Mixer, filter, voltage controlled gain components

      Harmonic / intermodulation analysis and suppression to 800MHz

      S-parameter analysis, microstrip and PCB shielding design

 

 

EMI Analysis and Reduction in Medical Instrumentation

      Low cost facility development for measurement of device EMI emissions

      Emissions reduction using proper shielding, cabling, filtering, and grounding technique

      Standardization of in-house test protocol and reports for compliance records

 

 

Stereo Audio Digitizer

      Wide dynamic range, high linearity audio pre-amplifiers

      Delta-sigma A/D converter evaluation and implementation

      LED VU metering with clipping and peak detection indicators

 

 

 

 

 

Augustus Design

243 King Street

Suite 108

Northampton, MA  01060

 

(413)585-1188