Sensor Delivery Mechanisms

LTC's Laser MicroMap™ systems usually include a sensor delivery mechanism to position the sensor and control its motion during scanning. For flexible scanning, LTC offers a number of standard sensor delivery configurations and can develop custom mechanisms for unique applications.

Stage-based Scanners for Fixed Sensors

Most small objects with simple geometry can be scanned with a combination of off-the-shelf linear and rotary stages. Examples include:

Stacked linear stages for X-Y motion – used to scan flat plates and small parts. This is the type of delivery mechanism used in our 3D Profiler

Linear-rotary combinations – used to scan cylindrical surfaces. The linear stage moves the sensor along the long axis and the rotary stage rotates the part or sensor

Probe Pushers for Rotary Sensors

Most sensors for inspecting tubes or high length-to-diameter aspect bores have an integrated motor for full 360° rotation. For these sensors, the only delivery mechanism needed is a single axis pusher to translate the probe along the centerline of the tube or bore. This is the type of delivery mechanism used in our Tube Inspection System systems. Examples include:

	Linear translation stages – used to insert rigid sensors a short distance (up to 30 feet) into a bore or tube
	Commercial probe pusher – used to insert sensors with flexible umbilicals longer distances (up to 100 feet) into tubing or piping

Custom Delivery Mechanisms

Occasionally, the target surfaces have complex geometries or are difficult to access. In these situations, we work with the customer to develop a custom delivery mechanism that meets the system requirements. Whenever possible, we adapt existing commercial components to keep development costs low. For an example of a recent custom delivery system for a complex surface, see the Detecting chips in Space Shuttle thrusters application note.