High-temperature heat flux sensor GG01

monitoringwater-cooled

GG01 is a water-cooled sensor that measures extremely high heat fluxes, up to 1000 x 10³ W/m². Made from high thermal conductivity copper and copper alloys, this modern all-metal sensor keeps working at heat flux levels where other sensors get toasted. An optional sapphire window allows measurement of radiative heat flux only, excluding the convective heat flux. GG01 features an on-board Type K thermocouple and is available with various dedicated measurement ranges. For lower flux ranges, see our SBG01. GG01 is a modern Gardon gauge sensor that measures heat flux in the range of (250 to 1000) x 10³ W/m². Equipped with a black absorber and water-cooled, the sensor is designed to measure heat flux from strong radiative sources. Using an open detector, GG01 is also sensitive to convective heat flux—a contribution that is often overlooked. The GG01 Gardon gauge sensor generates an output voltage proportional to the incoming heat flux. A Type K thermocouple measures the body temperature. The sensor is cooled, usually via tap water, which keeps the sensor body relatively cool despite temperatures of the surrounding air and the radiant source reaching 1000 °C and higher. There are three versions of GG01, each with a different rated measurement range, sensitivity, and response time. Irradiance ranges are (250, 500, and 1000) x 10³ W/m² for GG01-250, GG01-500, GG01-1000, respectively. The body is equipped with a flange for easy mounting. GG01-250 may be equipped with a sapphire window.