| 摘要 |
PURPOSE:To obtain the time standard excelling in the frequency-temperature characteristics without lowering the power consumption, support and miniature properties each, by securing the electrically parallel connection for the two crystal oscillators which feature the substantial secondary curve for the frequency-temperature characteristics as well as the secondary temperature coefficients of opposite codes to each other. CONSTITUTION:Each of oscillators 3 and 4 features the secondary curve substantially for the frequency-temperature characteristics and the secondary temperature coefficients of opposite codes to each other. Such two crystal oscillators are connected in parallel and electrically. As a result, the time standard excelling in the frequency-temperature characteristics can be obtained without lowering the power consumption, support and miniature properties each. |
