How much does a fiber optic temperature measurement cable cost

Fiber optic temperature measurement cables typically range from $10 to $100 per meter, depending on technology, length, and environmental specifications.Factors Affecting PriceTechnology TypeDistributed Temperature Sensing (DTS) cables use Rayleigh or Raman backscatter to provide continuous temperature profiles along the fiber and are generally more expensive due to high-resolution measurement capabilities and long-range monitoring (up to 60 km) .Fiber Bragg Grating (FBG) sensors allow multipoint temperature measurement along a single fiber and are priced based on the number of gratings and sensor multiplexing .GaAs-based fiber optic probes are designed for high-accuracy measurements in EMI/RFI environments and are often used in high-voltage or industrial applications .Cable Construction and CoatingStandard polyacrylate-coated fibers for moderate temperatures are less expensive.Polyimide or metal-coated fibers for high-temperature or cryogenic applications increase cost .Armored or metal-tubing cables provide mechanical protection and are more costly than flexible, metal-free options .Length and Spatial ResolutionLonger cables and higher spatial resolution (sub-meter or sub-millimeter) increase the price. For example, a 10 km DTS cable with 0.7 m spatial resolution can cost several thousand dollars .Shorter, multipoint FBG cables for laboratory or industrial use may cost a few hundred dollars for a few meters .Environmental and Application RequirementsHarsh environments (high voltage, magnetic fields, chemical exposure) require specialized cables, which are priced higher .Embedded or structural monitoring applications may require custom cable integration, affecting cost .Typical Price RangesShort laboratory or industrial FBG cables (1–10 m): $100–$500 per cable .Medium-length DTS cables (100 m–1 km): $10–$50 per meter .Long-range DTS or armored cables (1–60 km): $50–$100 per meter, depending on resolution and environmental protection .Specialty GaAs probes or high-temperature fibers: $500–$2,000 per sensor, excluding interrogator systems .Additional CostsInterrogator or readout systems are required for both DTS and FBG systems and can range from $5,000 to over $100,000 depending on range, resolution, and number of channels .Installation and integration costs vary based on environment, cable routing, and protective measures. In summary, the price of fiber optic temperature measurement cables depends heavily on technology, length, environmental protection, and measurement resolution, with typical costs ranging from $10 to $100 per meter for standard applications, and higher for specialized or long-range systems.