TECHNOLOGIES & APPLICATIONS
MICROWAVE CALORIMETER
The microwave calorimeter is used for measuring the energy of nano- and microsecond X-band high-power microwave pulses. The calorimeter comprises a plane wide-aperture microwave absorbing load, a control and measuring unit, a calibrator, and a set of connecting cables. The operation of the calorimeter is based on the expansion of the working liquid in the absorbing load due to microwave energy absorption in the liquid. The load is suspended upstream of the aperture of the receiving antenna of a microwave oscillator. The control and measuring unit ensures preliminary automatic heating of the absorbing load and zero adjustment for calibration and for measurement of the microwave energy. The output signal is recorded with an oscilloscope.
| Operating frequency range | 7–10 Hz |
| Operating frequency range | 7–10 Hz |
| Working liquid | ethanol-based |
| Microwave peak power | up to 2 GW |
| Maximum measurable microwave energy | 500 J |
| Minimum measurable microwave energy | 5 J |
| Operating mode | single and repetitive pulses |
| Time per measurement of microwave energy | no longer than 10 s |
| Ranges of measurable microwave energy | 5–30 J, 30–150 J, 150–500 J |
| Measurement error for microwave energy: 1–30 J above 30–500 J | ± 10 % ± 5 % |
| Microwave reflection coefficient from the absorbing load | no greater than –15 dB |
| Weight of the absorbing load filled with the working liquid | no greater than 23 kg |
| Volume of the working liquid in the absorbing load | 7 liter |
| Overall dimensions of the absorbing load without heat-insulting coating | 715×680×120 mm |
| Overall dimensions of the control and measuring unit | 300×200×85 mm |
| Weight of the control and measuring unit | no greater than 2.05 kg |
| Overall dimensions of the calibrator | 290×155×135 mm |
| Weight of the calibrator | no greater than 4.6 kg |
| The calorimeter is powered from a 50-Hz 220-V ac power supply | |
| The power consumption is no greater than 100 W | |
| Manufacture of S- and L-band calorimeters and adjustment of the parameters to meet customer's requirements are possible. | |
For further information please contact:
Vladislav V. Rostov
Dr. Sci. (Phys. & Math.), Department Head
Phone: (3822) 49-16-41
Fax: (3822) 49-21-34
E-mail: rostov@lfe.hcei.tsc.ru
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