Medical Application Case Study - Data Acquisition Spectroscopy

Medical Applications

Hyper Remote Laser Sensor

Customer Case

The customer is at the prototype stage for building a hyper remote sensor which will fly over the ocean and be able to see 100 to 200 feet below the surface. The sensor is being designed in order to determine the composition of the ocean and the ocean floor.

This remote sensor will be extremely useful in the detection of pollution and studying the way pollution is being distributed by ocean currents. It will also be useful to the military (navy) for creating mine-finding systems.

A deep blue laser will be used to excite the sensor. The light which bounces back off the water to the sensor will be broken down into 16 bands of laser light, which will be sampled on 16 channels. With this information, the system will create a "map" of the ocean's composition by correlating the sampled light spectra to ocean density and hence pollution levels.

The customer's system requires a 200 MHz sample rate, with 128 samples per acquisition, with a Pulse Repeat Frequency of 30 ms (33 Hz), and External Clock Input.

GaGe Case Solution

The CompuScope 2125 samples at a maximum external clock rate of 250 MHz. 8-bits of vertical resolution are sufficient for this application. Sixteen CompuScope 2125 cards will be required in order to sample 16 bands of laser light at 200 MHz.

In order to have 16 CompuScope 2125 cards operating in one system, GaGe will provide a custom 20-slot ISA backplane. A special two-level chassis is used, in which the 20-slot backplane is on the upper level, and the drive bays and power supply are housed on the lower level.

The two groups of eight CompuScope cards are internally linked via a custom signal conditioner, to ensure synchronization of the clocks and triggering. A special power supply is is also required to ensure the added power required by 16 CompuScope cards.

The custom chassis is illustrated below:

Hyper Remote Laser Sensor Chassis

GaGe Case Recommended Products

  • 2 x 8 Board CompuScope 2125 Multi-Card System - 8-bit, 250 MSPS A/D Cards for ISA Bus
  • GaGePC in Custom Chassis
  • Internal Clock In to Clock Out Modification
  • Internal Trigger In to Trigger Out Modification
  • Custom Power Supply

Medical Application Request

We encourage you to contact us and discuss your medical application in more detail with our engineering team. GaGe can provide tailored custom data acquisition hardware and software solutions to meet specific application requirements:

Submit Application Request