Development and characterization of PdCr temperature-compensaated wire resistance strain gage
Conference
·
OSTI ID:7148536
A temperature-compensated resistance static strain gage with potential to be used to 600 C was recently developed. Gages were fabricated from specially developed palladium-13 w/o chromium (Pd-13Cr) wire and platinum (Pt) compensator. When bonded to high temperature Hastelloy X, the apparent strain from room temperature to 600 C was within 400 microstrain for gages with no preheat treatment and within 3500 microstrain for gages with 16 hours prestabilization at 640 C. The apparent strain versus temperature relationship of stabilized PdCr gages were repeatable with the reproducibility within 100 microstrain during three thermal cycles to 600 C and an 11 hours soak at 600 C. The gage fabrication, construction and installation is described. Also, the coating system used for this compensated resistance strain gage is explained. The electrical properties of the strain sensing element and main characteristics of the compensated gage including apparent strain, drift and reproducibility are discussed.
- Research Organization:
- Sverdrup Technology, Inc., Cleveland, OH (USA)
- OSTI ID:
- 7148536
- Report Number(s):
- N-90-13761; NASA-CR--185153; E--5112; NAS--1.26:185153; CONF-890996--
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
440800* -- Miscellaneous Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
ALLOY-NI49CR22FE18MO9
ALLOYS
CHROMIUM ALLOYS
COATINGS
COBALT ALLOYS
CORROSION RESISTANT ALLOYS
DESIGN
ELECTRICAL PROPERTIES
ELEMENTS
FABRICATION
HASTELLOY X
HASTELLOYS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
MATERIALS
MEASURING INSTRUMENTS
METALS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
PALLADIUM ALLOYS
PALLADIUM BASE ALLOYS
PHYSICAL PROPERTIES
PLATINUM
PLATINUM METAL ALLOYS
PLATINUM METALS
STRAIN GAGES
THERMAL CYCLING
TRANSITION ELEMENTS
TUNGSTEN ADDITIONS
TUNGSTEN ALLOYS
47 OTHER INSTRUMENTATION
ALLOY-NI49CR22FE18MO9
ALLOYS
CHROMIUM ALLOYS
COATINGS
COBALT ALLOYS
CORROSION RESISTANT ALLOYS
DESIGN
ELECTRICAL PROPERTIES
ELEMENTS
FABRICATION
HASTELLOY X
HASTELLOYS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
MATERIALS
MEASURING INSTRUMENTS
METALS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
PALLADIUM ALLOYS
PALLADIUM BASE ALLOYS
PHYSICAL PROPERTIES
PLATINUM
PLATINUM METAL ALLOYS
PLATINUM METALS
STRAIN GAGES
THERMAL CYCLING
TRANSITION ELEMENTS
TUNGSTEN ADDITIONS
TUNGSTEN ALLOYS