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Optical temperature measurement systems

Optical fiber optical temperature sensors and optical temperature measuring systems are resistant to RFI, EMI, NMR and microwave radiation (microwave). This makes them suitable for use in high frequencies or a high voltage.

The application areas of these systems are for example in generators, energy transformers, bus bars, R&D, industrial applications, the food industry and (animal) medicine.

For our full range of optical temperature measurement systems, view the options below or contact us for more information.

 

FOTEMP1-H Fiber optic thermometer - Weidmann

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FOTEMP1-H, Fiber optic temperature monitoring system - Weidmann


The fiber optic thermometer FOTEMP1-H is ideal for a huge variety of applications due to its portability.

FOTEMP1-H offers a unique variety. Battery operated for maximum flexibility, the user can move easily from one measurement point to the next. The battery of the handset offers continuous operation for at least 5 hours of electricity and can additionally be loaded with a power supply.

The FOTEMP1-H, Single-channel handheld signal conditioner features a large LCD display with LED backlight and comes with an RS-232 communication port for real-time data acquisition. It can be controlled directly using the front-panel keypad or using the “FOTEMP Assistant” software. One installed LED shows the battery charging status and a second LED the operational readiness of the connected sensor. Temperature can be measured in high electromagnetic interfered environment, in microwave fields and other environments, where measurement with electric temperature sensors is not possible.

The outer jacket of the fiber optic temperature sensors is made out of teflon, at the sensor tip a GaAscrystal (gallium arsenide) is attached. The probe sensor is completely non-conductive. Optocon’s fiber optic sensors offer complete immunity to RF and microwave radiation with high temperature operating capability, intrinsic safety, and non-invasive use. The probes are also designed to withstand harsh and corrosive environments.

Starting at a light wave length of 850nm GaAs becomes optical translucent. Since the position of the band gap is temperature dependent, it shifts about 0.4nm/ Kelvin. The measurement device contains a light source and a device for the spectral detection of the band gap. This guaranties fast, repeatable and reproducible measurements.

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FOTEMP1-OEM Fiber optic thermometer - Weidmann

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FOTEMP1-OEM, Fiber optic thermometer - Weidmann


The fiber optic thermometer FOTEMP1-OEM is ideal for the use in microwave, high frequency and high voltage environments.

FOTEMP1-OEM was designed to be integrated into your own system. Through its compact design a retrofit into existing model series is possible. It is ideal for fiber optical temperature measurement in high electromagnetic interfered environment, in microwave fields and other environments, where measurement with electric temperature sensors is not possible.

The standard analog output and RS-232 communication port allow for real-time data acquisition. The FOTEMP1-OEM, Single-channel-OEM signal conditioner can be controlled directly using the “FOTEMP Assistant” software. Hence, complex temperature profiles can be realized and an excellent monitoring of the results is possible. On the back of the measuring device is an LED, which shows the system status.

The outer jacket of the fiber optic temperature sensors is made out of teflon, at the sensor tip a GaAs-crystal (gallium arsenide) is attached. The probe sensor is completely non-conductive. Optocon’s fiber optic sensors offer complete immunity to RF and microwave radiation with high temperature operating capability, intrinsic safety, and non-invasive use. The sensors are also designed to withstand harsh and corrosive environments. Due to its characteristics, it is perfectly suitable for installation in microwave or drying ovens.

Starting at a light wave length of 850nm GaAs becomes optical translucent. Since the position of the band gap is temperature dependent, it shifts about 0.4nm/Kelvin. The measurement device contains a light source and a device for the spectral detection of the band gap. This guaranties fast, repeatable and reproducible measurements.

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FOTEMP1-OEM-MNT Fiber optic thermometer - Weidmann

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FOTEMP1-OEM-MNT, Fiber optic temperature monitoring system - Weidmann


Due to its very small design and modular components the fiber optic thermometer FOTEMP1-OEM-MNT is ideal for your OEM usage!  

FOTEMP1-OEM-MNT was designed to be integrated into your own system. Due to its very small and compact design even more applications are possible and a retrofit into existing model series is possible. It is ideal for fiber optic temperature measurement in high electromagnetic interfered environment, in microwave fields and other environments, where measurement with common electric temperature sensors is not possible.

The modular electronic components allow an individual OEM usage and device configuration. The standard analog output and RS-232 communication port allow for a real-time data aquisition. With additional modules, e.g. LCD-Display, Touch Graficdisplay and SD-Cardslot this OEM device is individually expandable. The FOTEMP1-OEM-MNT, Single-channel-OEM miniature signal conditioner can be controlled directly using the "FOTEMP Assistant“ software. Hence, complex temperature profiles can be realized and an excellent monitoring of the results is possible.

The outer jacket of the fiber optic temperature sensors is made out of teflon, at the sensor tip a GaAs-crystal (gallium arsenide) is attached. The probe sensor is completely non-conductive. Optocon’s fiber optic sensors offer complete immunity to RF and microwave radiation with high temperature operating capability, intrinsic safety, and non-invasive use. The sensors are also designed to withstand harsh and corrosive environments.
Due to its characteristics, it is perfectly suitable for installation in microwave or drying ovens.

Starting at a light wave length of 850nm GaAs becomes optical translucent. Since the position of the band gap is temperature dependent, it shifts about 0.4nm/Kelvin. The measurement device contains a light source and a device for the spectral detection of the band gap. This guaranties fast, repeatable and reproducible measurements.

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FT-MINI fiber optic thermometer - Weidmann

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FT-MINI fiber optic thermometer - Weidmann

The thermometer FT-MINI with fiber optic sensors is ideal for the use in microwave, high frequency, high voltage and magnetic field or aggressive environments where measurement with metal temperature sensors (RTC, TC, capillary,...) is not possible.

  • Simple one channel device
  • 3.3V-TTL UART interface
  • Small footprint
  • Possible measuring range: -200 °C to +300 °C
  • Possible standard deviation +/- 0,1 K
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FOTEMPMK-19" MODULAR Fiber optic thermometer - Weidmann

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FOTEMPMK-19‘‘ Modular, Fiber optic temperature monitoring system - Weidmann


The fiber optic thermometer FOTEMPMK-19" Modular is ideal for process monitoring.

The new modular fiber optic thermometer FOTEMPMK-19" Modular system offers maximum flexibility for all of your measurement projects and is suitable for applications which require a simultaneous readout of the measurement channels with high speed. The fiber optic thermometer consists of a 19" case which provides place for up to 40 simultaneous channels in a total of 10 modules. Each module can be easily removed or replaced. One simply needs to remove the old module from the slot and insert the new one. We offer a variety of features e.g. 1-4 channels per module, additional analog outputs and display versions.

The FOTEMPMK-19" Modular system can be connected to the computer via a serial interface. Via the software "FOTEMP Assistant" all measurement results can be easily controlled and monitored via computer. The software features direct data logging and data saving to a Microsoft Excel spreadsheet.

The fiber optic thermometer FOTEMPMK-19" Modular system is especially adapted for industrial needs: among other things this includes low maintenance, robust components and the ability to withstand the toughest conditions, the system adapts perfectly to the most stringent environmental conditions with regard to shock, vibration, moisture and variations in pressure and temperature.

All components of the fiber optic thermometer, such as the light source guarantee a long service life. The FOTEMPMK-19" Modular system is compatible with all our fiber optic probes. The outer jacket of the fiber optic temperature sensors is made out of teflon, at the sensor tip a GaAs crystal (gallium arsenide) is attached. The probe sensor is completely non-conductive. Optocon’s fiber optic sensors offer complete immunity to RF and microwave radiation with high temperature operating capability, intrinsic safety, and non-invasive use. The probes are also designed to withstand harsh and corrosive environments.

Starting at a light wave length of 850nm GaAs becomes optical translucent. Since the position of the band gap is temperature dependent, it shifts about 0.4nm/Kelvin. The measurement device contains a light source and a device for the spectral detection of the band gap. This guaranties fast, repeatable and reproducible measurements.

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FOTEMP OEM-PLUS - Weidmann

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FOTEMP1-OEM-PLUS, Fiber Optic Temperature Meter - Weidmann

The thermometer FOTEMP-OEM-PLUS with fiber optic sensors is ideal for the use in microwave, high frequency, high voltage and magnetic field or aggressive environments where measurement with metal temperature sensors (RTC, TC, capillary,...) is not possible.

The measure principle use the change of the optical properties of a gallium arsenide crystal (GaAs) with the temperature. The FOTEMP-OEM-PLUS contains a light source, an optical analyzerand belonging electronic with interface and display. The compact device has a 2.8" coloured display for current measurement values as well as a monitoring of the sensor integrity. Standard analog output (one per channel) and serial communication port  can be used for real-time data acquisition. In addition, the ìFOTEMP Assistantî software is available to  control and monitor FOTEMP-OEM-PLUS directly. The communication protocol is available for own software development.

Depending on the measurement environment, several sensor designs are available with different ruggisation of the fiber tube and sensor tip (see specific data sheets). Customized sensors can be offered.

The system consisting of device and matched probe can be calibrated to achieve an improved accuracy of less than 0.1 K. On request a back-tracing according ISO 17025 can be offered.

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