Attachment 1 - Stereoscope Specification.pdf

Specification for

Stereoscope at

Arnold Air Force Base, TN

Arnold Engineering Development Complex (AEDC)

Provide all materials, labor, and equipment necessary to provide a new fully functional stereoscope.

Refurbished or remanufactured equipment or parts are not authorized for this requirement.

1) Stereoscope with the following features and accessories:

Parallel-Optic type with a zoom ratio of 12.7:1 or greater and a total magnification range that includes 3.15-480x

Trinocular Tube with two eyepieces and one camera mount with an adjustable eyepiece inclination range of 0° to 30°, an interpupillary distance adjustment of 50 mm or wider, and eyepiece: camera port switching ratios of 100:0/0:100

Two 10x widefield eyepieces with a 22 mm field of view and diopter adjustment

0.5x widefield objective with a working distance of at least 82mm and a field-of-view of 69.8mm or larger at 0.63x magnification

1x widefield objective with a working distance of at least 70mm and a field-of-view of 34.9mm or larger at 0.63x magnification.

Nosepiece with two-objective switchover and the ability to change from stereoscopic to mono on-axis views

Objective and focus detection which allows for automatic calibration adjustments (i.e. displays appropriate scale and measurement results) following changes of magnification and objectives

Boom Stand with heavy square bottom with 360 Degree Rotation and a 254mm vertical by 260mm horizontal travel

Focusing mount with 50mm of focusing travel

2) Coaxial Episcopic Illuminator with 7.5ft LED fiber optic source

3) Digital Camera with the following features:

1/1.8 in. color CMOS image sensor with 2880 x 2048 recordable pixels and 2x2 pixel averaging for a total of 1440 x 1024 resolution

C lens mount

Sensitivity selectable between ISO 50 and ISO 3200 equivalent

Maximum Frame Rate: 15 fps at 2880 x 2048 and 30 fps at 1440 x 1024

Exposure time includes 100 µsec to 30 sec

Average and peak photometry modes

One-time automatic, continuous automatic, and manual exposure control

USB3.0 interface and 3 meter USB cable

7.5 ft power cord

Include accessories for microscope and computer connections

4) Imaging software with the following features:

Large Image Stitching

Extended depth of focus combining multiple focal images into a single focused 2D image

Manual and automatic measurement such as length, area, and intensity with region of interest tools and statistics

Automatic white balance

Grayscale, RGB, and HSI Thresholding

Grain Sizing, Cast Iron & Filter Analysis

Phase/ Inclusion Analysis

5) Computer capable of integrating with the Stereoscope and Image Analysis software and consisting of the following features:

Intel Xeon W-2223 or better

32 GB of DDR4 RAM or more

1 TB of SSD storage memory or more

27 inch 4K UHD 3840 x 2160 Display

6) Installation, Calibration, and Warranty

Shipping and Installation

Calibration standards and certifications

Factory Warranty