Specifications
GG01
| Measurand | heat flux |
| Measurement range | (250, 500, 1000) x 10³ W/m² |
| Measurand in SI units | irradiance in W/m² |
| Sensor technology | Gardon |
| Rated cooling water flow (see manual for more information) | > 50 l/h (0.014 l/s) |
| Nominal response time (63 %) at different rated measurement ranges | |
| 250 x 10³ W/m² | 250 x 10⁻³ s |
| 500 x 10³ W/m² | 200 x 10⁻³ s |
| 1000 x 10³ W/m² | 100 x 10⁻³ s |
| Limiting measurement range | 150 % of rated measurement range |
| Output signal | DC voltage |
| Output signal range | > 5 x 10⁻³ V at rated measurement range |
| Full field of view angle | 180° |
| Calibration traceability | to ITS-90 |
| Calibration laboratory | |
| -management system certification | ISO 9001 |
| -accreditation | not accredited |
| Calibration method | secondary calibration method according to ISO 14934-3 |
| Standard cable length | 2 m (see options) |
| Order code standard version | GG01/rated measurement range/cable length |
Options
Downloads
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GG01 measures heat flux in the range of (250 to 1000) x 10³ W/m². Equipped with a black absorber, heat flux sensors of this type are designed for measurement in an environment in which heat flux is dominated by radiation. Using an open detector, GG01 is also sensitive to convective heat flux.
The GG01 Gardon gauge sensor, based on thermocouple materials, generates an output voltage proportional to the incoming irradiance. A type K thermocouple measures the body temperature. The sensor is water-cooled. Water cooling is usually supplied by tap water.
There are 3 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 and GG01-1000 respectively. The body is equipped with a flange for easy mounting. GG01-250 may be equipped with a sapphire window. See options.
Hukseflux invested in brand new manufacturing and test equipment for producing modern Gardon gauges. Each sensor is tested at its rated range.
All GG01s are tested to withstand a cooling water operating pressure of 10 bar.
Optionally GG01 may be equipped with a sapphire window (GG01-250-SW). It allows the user to measure only the radiative component of the heat flux.
Suggested use
GG01 is the sensor of choice for high heat flux measurements.
GG01 Gardon gauge
GG01 has several advantages:
- withstands very high heat fluxes
- fast response time
- equipped with type K thermocouple to measure body temperature
- suitable for use in high vacuum
- safe storage with a practical protection cap
