Wire strain gages take the heat
Each series offers unique application advantages. In applications where a compensating grid is used to achieve limited-static strain measurements, the iron-chrome-aluminum alloy ZWH series is recommended. When optimal fatigue life is desired, the Nichrome-V alloy ZWN series is typically specified. For those applications where requirements call for a combination of the highest possible oxidation resistance and the highest temperature measurement capabilities, the platinum-tungsten alloy ZWP series fills the bill.
All of the free-filament wire gages have 120 Ω resistance and are packaged with a fiberglass-reinforced segmented tape carrier, which holds the grid and lead patterns intact during installation. They are bonded using either ceramic cement or Roxide flame spray.
Prices for the ZWH, ZWN, and ZWP series of free-filament wire strain gages start at $376 for a package of five gages.
ZWH, ZWN, ZWP series datasheet
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