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Procurement of CMM Upgrade: Probe Head with Non-Contact, Optical Sensor

Statement of work:

NASA Goddard Space Flight Center (GSFC) requires the procurement of a non-contact, optical sensor for its Leitz

PMM-C 700 coordinate measuring machine (CMM). The non-contact head is an optical Precitec LR (lateral resolution) sensor. This off-the-shelf upgrade to an existing CMM uses a broad-band source and aberration to measure the shape and alignment of specular (i.e., optical) and matte surfaces without touching them, allowing the user to avoid damaging sensitive parts for flight and ground testing. Once upgraded, this CMM will be used to accurately align and dimensionally verify large, optically- and electrically-sensitive and fragile components for present and future instrument and spacecraft systems.

GSFC builds spacecraft and optical instruments for Earth, space science, and astronomy applications. For optical telescopes and instruments, industry and Government have essentially reached the limit of component performance in terms of highly reflective mirrors and highly sensitive detectors. For missions that are in current development and are on the near horizon, scientific requirements are instead largely addressed by growing the size of components like optics and detectors. These large, sensitive components and sub-assemblies require metrology for accurate alignment during assembly, but contact can often damage them. Projects in the near future will require non-contact measurements for large mirror segments and detector arrays (e.g., eLISA, LUVOIR).

In addition, the number of “free-form” optics for compact optical assemblies is growing and those components require non-contact metrology for shape and alignment verification. In summary, GSFC requires this non-contact probe upgrade to continue its roles in pushing optical technology to meet the needs of scientists and verifying that optics and other sensitive components meet requirements during acceptance testing (after delivery from industry) and construction/assembly. This procurement covers the sensor hardware, installation, and calibration/training at

GSFC for its existing CMM, leveraging an existing investment of-order $1M. This procurement is to enhance compatibility with an existing system.

The vendor shall deliver the items listed in Table 1.

Table 1. The deliverables (to GSFC) for this procurement are shown here.

Quan. Description

1 LSP-S4-LR Probe Head with Precitec LR Sensor

LSP-S4-LR Probe Head

Controller for the Precitec probe

Precitec LR Sensor Kit 0°, incl. Controller

IPC 4.5 necessary to run Precitec

Cable set for the Precitec probe

Reference Prism for Precitec

Reference Sphere 30 mm Ceramics

Replace the Z axis Scale and Encoder

Documentation

Installation & Calibration

One (1) Year System Warranty

1 5-days onsite Quindos Basic Training

1 3-days of intensive on-site training pertaining to the specific tasks of measuring optical surfaces

Total cost

This procurement shall include the shipment, installation, and calibration of the above parts to GSFC. Training shall occur immediately after installation, to best effort.

If needed, the following delivery address shall be used for the above:

Attn.: Raymond G. Ohl NASA Goddard Space Flight Center 8800 Greenbelt Rd.

Code 443, Bldg. 29, rm. 105 Greenbelt, MD 20771 Tel. 301 286 8368 Mobile: 301 832 2546

Background text:

GSFC builds spacecraft and optical instruments for Earth, space science, and astronomy applications. For optical telescopes and instruments, industry and Government have essentially reached the limit of component performance in terms of highly reflective mirrors and highly sensitive detectors. For missions that are in current development and are on the near horizon, scientific requirements are instead largely addressed by growing the size of components like optics and detectors. These large, sensitive components and sub-assemblies require metrology for accurate alignment during assembly, but contact can often damage them. Projects in the near future will require non-contact measurements for large mirror segments and detector arrays (e.g., eLISA, LUVOIR).

In addition, the number of “free-form” optics for compact optical assemblies is growing and those components require non-contact metrology for shape and alignment verification. In summary, GSFC requires this non-contact probe upgrade to continue its roles in pushing optical technology to meet the needs of scientists and verifying that optics and other sensitive components meet requirements during acceptance testing (after delivery from industry) and construction/assembly. This procurement covers the sensor hardware, installation, and calibration/training at

GSFC for its existing CMM, leveraging an existing investment of-order $1M. This procurement is to enhance compatibility with an existing system.

Evaluation criteria:

The following evaluation factors will be used to evaluate vendor selection by GSFC (all evenly weighted):

Technical capabilities --- the vendor shall demonstrate its ability to provide, deliver, install, and calibrate the equipment, in addition to training, which comply with the specifications and overall statement of work.

Schedule --- ability to meet delivery date (14 weeks ARO).

Cost --- best value for the Government.

Specification for Purchase of Probe Head with Non-Contact, Optical Sensor

This notice is a combined synopsis/solicitation for commercial items prepared in accordance with the format in

FAR Subpart 12.6, as supplemented with additional information included in this notice. This procurement is being conducted under the Simplified Acquisition Procedures (SAP). This procurement is for the purchase of a LSP-S4-LR

Probe Head with Precitec LR Sensor, with the following specifications and requirements:

1) The probe head and optical sensor shall be compatible with GSFC’s existing Leitz PMM-C 700 CMM, serial number 196, and QUINDOS1 software.

2) The probe head and optical sensor shall be capable of high-precision, non-contact measurement independent of surface type utilizing a chromatic, confocal measurement technique.

3) The optical sensor shall be capable of measuring all types of surfaces, including optically specular glass, prisms, refractive surfaces, and optical flats.

4) The optical sensor shall have an angle of acceptance of 90 deg +/- 40 deg for measuring highly oblique surfaces.

5) The optical sensor shall have a numerical aperture of 0.66.

6) The optical sensor shall have a 6.5 mm measuring distance.

7) The optical sensor shall be capable of a 0.01 micron resolution along the vertical (i.e., Z) axis.

8) The optical sensor shall have a 1.4 micron spot diameter.

9) The probe head and optical sensor shall not reduce the measurement range of the CMM.

10) The probe head shall support options for tactile probe tips.

11) The probe head and optical sensor shall include a controller, cables, and software compatible with GSFC’s existing control system and computer for its PMM-C 700 CMM, serial number 196.

1 Hexagon AB

12) The probe head and optical sensor shall be installed and calibrated in GSFC’s Checkout, Integration, and

Alignment Facility (CIAF; GSFC, Bldg. 7, room 009).

13) The probe head and optical sensor shall include a 1 year system warranty.

14) The probe head and optical sensor procurement shall include the return of GSFC’s existing LSP-S4 probe head.

15) There shall be one, five-day training session at NASA, Goddard Space Flight Center for four NASA personnel to cover basic use of QUINDOS. Dates to be determined between NASA and Contractor after award made.

16) There shall be one, three-day training session at NASA, Goddard Space Flight Center for four NASA personnel to cover the specifics of measuring optical surfaces. Dates to be determined between NASA and Contractor after award made.

17) The calibration shall be performed in accordance to ISO 17025 or ANSI Z540.1 or ANSI 540.3, whichever is standard practice for the vendor. After the calibration, the calibration certificate shall be delivered (e.g., “It is hereby certified that the above-described machine has been tested per the above stated test method per ISO 17025 and ANSI Z540 and conforms to the original manufacturer's specifications that are traceable to NIST.”). Any data associated with the relevant calibration specification shall also be delivered.