G 132
CAP. 60)
Import and Export (Strategic Commodities) Regulations
[1988 Ed.
[Subsidiary]
IL 1570
IL 1571
Technical Notes:
Open circuit sensitivity
The slope of straight line that passes through the point of origin and through the point ug i at B B in the characteristic is defined as the open circuit sensitivity (where u Hall voltage, open circuit;
Uzo
B
Control current;
Rated value of applied magnetic control field.
(m) Specially designed components and test equipment (including adaptors, couplers, etc.) for the above.
Thermoelectric materials and devices, as follows-
(a) Thermoelectric materials with a maximum product of the figure of merit (Z) and the temperature (T in degrees K) in excess of 0.75;
(b) Junctions and combinations of junctions using any of the materials in (a) above;
(c) Heat absorbing or electrical power generating devices containing any of the junctions in (b) above, and specially designed components therefor;
(d) Other power generating devices, and specially designed components therefor, which generate in excess of 22 W per kg (10 W per pound) or of 17.70 kW per cubic metre (500 W per cubic foot) of the device's basic thermoelectric components;
Technical Note:
The figure of merit (Z) equals Seeback coefficient square divided by the product of electrical resistivity and thermal conductivity.
Notes:
1.
2.
See also Item IL 1205(c).
The weight and cubic measurements in sub-item (d) above are not intended to encompass the complete device but to include only the thermoelectric elements and assembly and the components for pumping calories. Other components, such as heating and cooling sources of containers, device frames or stands and control equipment are not to be included in the calculations.
Magnetometers, magnetometer systems and related equipment, as follows, and specially designed components therefor-
(a) Magnetometers and magnetometer systems having or capable of having a sensitivity better than ±1.0 gamma (±10-5 oersteds), except magnetometers having sensitivities not better than 10.1 gamma (±10-6 oersteds) where the reading rate capability is no faster than once per half-second;
(b) Magnetometer test facilities able to control magnetic field values to an accuracy of 1.0 gamma (10-5 oersteds) or less;
(c) Magnetic compensation systems utilizing "digital computers", non-magnetic platforms and calibration systems;
(For optical fibres, see Item IL 1526(c) and (d)).
Technical Notes:
(1) Sensitivity is defined as the visually recognized minimum sinusoidal signal in the frequency range of 0.025 Hz to 1.5 Hz when signal-to-noise ratio is higher than 1.
(2) The term 'specially designed components therefor' is intended to include non-magnetic pumping lamps and heating coils, cryogenic magnetic componentry, enhanced resonance gases, and any form of dynamic signal-processing gradient compensation provided as part of, or designed for use with, magnetometer, embargoed by this Item. Enhanced resonance gases are gases of isotopes of cesium, rubidium and other metals which exhibit very sharp bands of response to pumping frequencies in optically pumped magnetometers.
(3) Magnetometer systems use magnetic sensors, including those designed to operate at cryogenic temperatures, compensation systems, displays, recorders and associated electronics for signal processing, target parameter detection, gradient compensation and dynamic range control.