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LSENSC Fiber Optic Temperature Sensor Product
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Key Features

  • Small tip Polyimide, protected 
  • Outstanding repeatability with High flexibility
  • Complete immunity to RFI, EMI, NMR and microwave radiation
  • Does not require recalibration or complex inputs to operate
  • Cryogenic temperature range  ( as low as 4 °Kelvin ) 

Product Description

LSENSC Fiber Optic Temperature Sensor Summary


The most reliable and cost-effective temperature sensors for accurate measurement of cryogenic temperatures up to 4K. The sensors are calibrated to provide higher accuracy and repeatability of measurement in entire cryogenic range i.e. 4K to 373K. 

The LSENSC sensors are ideal choice for measuring cryogenic temperature under harsh environmental conditions such as high electric, magnetic, microwave and radiation fields. Calibration software can be provided to improve the measurement accuracy at lower cryogenic temperatures.

LSENSC Benefits
    • Sensors do not require any recalibration
    • Suitable for OEM-type applications
    • Customizable according to customer specific applications
    • Available in different cables and sheath options
    • Robust fiber optic temperature sensor
    • Optional spiral wrap
    • No shift over time, high stability
LSENSC Fiber Optic Temperature Sensor Applications

Detailed Overview

A multiuse fiber optic temperature sensor designed for a wide range of applications, especially for the use in demanding applications. The sensor offers complete immunity to RFI, EMI, NMR and microwave radiation. The standard temperature sensor has a response time of 0.2 s. With a standard deviation of +/-0.2 °C it allows precise and repeatable measurements. The coating of the temperature sensor is made of PTFE, and the fiber tip has  0.3 mm x 0.3 mm area with a Polyimide coating. The fiber optic probe consists of a PTFE protected glass fiber and a GaAs-crystal (Gallium Arsenide) at the sensor tip. It is totally free of metal and is immune to external fields. Therefore, the probes are explicitly suitable for use in large temperature ranges as well as in aggressive operating environments. The sensor length can be from several meters to 1 kilometer in length without impacting the accuracy of the measurement result. Other sensor lengths and connector types are available upon request.

Technical Specifications

Temperature rangeDown to 4 °K / Up to +85 °C
Repeatability0.2 °C
Accuracy absolute temperature+/- 0.8 °C
Accuracy relative temperature+/- 0.2 °C
Probe sheathing materialTeflon Coated, except for the sensor tip
ConnectorStainless Alloy / Optional - Dielectric
Response timeUp to 0.2 Sec
Probe sensitive area - Diameter 0.7 mm
Protective Tube - DiameterTeflon / 1.4 mm
LongevityProbe accuracy & repeatability constant over time

Ordering Code

LSENSC Fiber Optic Temperature Sensor Ordering Code

Product Drawing

LSENSC Fiber Optic Temperature Sensor Product Drawing