Temperature Measurement


Dual wavelength sensors

December 2009 Temperature Measurement

Ratio pyrometers for hot metal processing applications.

Measurement technology company Micro-Epsilon has extended its range of temperature sensors with a new ratio pyrometer. This non-contact temperature sensor is dependent on the emissivity ratio, but not on the absolute emissivity. The sensor measures by using two short wavelengths close to each other and forms a ratio from these. The emissivity of the target is therefore no longer required for measurements. Even when the IR radiation is obscured up to 95% by steam or smoke, an accurate measurement is possible with this method. The sensor provides a measuring range of 700 to 1800°C, at a maximum ambient temperature of 250°C without cooling, and is primarily used in metal processing applications.

The thermoMETER CT ratio sensor is connected to the electronics and evaluation unit via an optic fibre. Electromagnetic radiation thus does not influence the sensor. A sighting laser which enables constant mapping of the real measuring spot size is projected onto the target by the lens of the sensor. The standard focus of the lens is at a distance of 60 mm. By using an additional, variable focussing lens, the user can set the focus point between 65 and 300 mm. The pyrometer can be used as a standard single-channel IR sensor or as a ratio pyro­meter. The electronics and evaluation unit allows for connection to Profibus, Ethernet, USB, RS232 or RS485.

For more information contact Associated Technology, +27 (0)11 802 3320, [email protected], www.evanet.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Proven indicators monitored in three dimensions
ifm - South Africa Temperature Measurement
The VVB30x continuously detects vibrations in three measurement axes and uses them to calculate proven indicators for evaluating machine condition.

Read more...
Three ways to conduct thermal inspections
Comtest Temperature Measurement
There’s no universal solution for all infrared inspections with a Fluke thermal camera, also known as a thermal imager. You need to match your method to the type of equipment you’re inspecting and the level of detail you require.

Read more...
Modern N1020 temperature controller
Temperature Measurement
Temperature control is a fundamental aspect of maintaining the integrity and quality of products in industries such as food processing, pharmaceuticals and healthcare. The N1020 temperature controller, designed for precision and reliability, addresses the stringent requirements of these sectors by offering advanced features and robust functionality.

Read more...
Safer, simpler temperature measurement
ABB South Africa Temperature Measurement
ABB has launched an enhanced version of its NINVA TSP341-N non-invasive temperature sensor, delivering safer and simpler temperature measurements for applications in the chemical, oil and gas industries.

Read more...
Smart high-precision pyrometers
Temperature Measurement
LAND, a business of AMETEK, has expanded its range of SPOT+ smart high-precision pyrometers with the launch of the M390, M3-5 and TMT for wider temperature measurement capabilities.

Read more...
Detecting lubrication issues in gearbox testing by IR monitoring
Temperature Measurement
Lubrication is crucial for every transmission gearbox. Thermal imaging cameras such as Instrotech’s PI 640i can quickly and accurately detect temperature variations to ensure that gearboxes are appropriately lubricated.

Read more...
Primary concerns for measuring temperature with thermocouples
Vepac Electronics Temperature Measurement
Temperature values are one of the most common elements measured in any data acquisition system.

Read more...
Is the HVAC market in SA missing the big picture?
Iritron Temperature Measurement
The South African HVAC market is currently grappling with a pervasive mindset that prioritises lowest cost over value for money and technical excellence. However, this approach overlooks the significant benefits that come with investing in high-quality HVAC solutions.

Read more...
Temperature monitoring in dairies
ifm - South Africa Temperature Measurement
Milk is a natural product whose processing requires precise temperature settings. The Berchtesgadener Land dairy uses innovative temperature sensors from ifm in key process areas.

Read more...
Measuring temperature, relative humidity and dew point temperature
Senseca Temperature Measurement
Senseca’s range of passive or active transmitters measures temperature, relative humidity, and dew point temperature.

Read more...