| 摘要 |
<p>PURPOSE:To achieve a higher sensitivity by employing dual elements, or single compensation type elements individually as four elements to connect the elements to form two circuits. CONSTITUTION:Elements (a1, a2) and (b1, b2) are connected respectively in series and the element a1 is made up of elements a1+ and a1-, the element a2 made up of elements a2+ and a2-, the element b1 made up of elements b1+ and b1- and the element b2 made up of elements b2+ and b2- as dual elements individually as dual elements. Therefore, the elements a1+, a1-, a2+ and a2- are connected in series to he elements b1+, b1-, b2+ and b2- respectively and bias resistances Rga and Rgb are connected in parallel to the elements. One end thereof is connected to a gate terminal of an FETa and FETb while the other end thereof is connected to a ground terminal to form two circuits. Thus, an output is obtained from two sets of dual elements for entry from any direction thereby achieving a higher sensitivity.</p> |
