Device for measuring time - has frequency generator and liquid crystal display supplied by dry battery
Номер патента: FR2278108A2
Опубликовано: 06-02-1976
Автор(ы): Henri Courier De Mere
Принадлежит: BICOSA RECHERCHES Ste
Опубликовано: 06-02-1976
Автор(ы): Henri Courier De Mere
Принадлежит: BICOSA RECHERCHES Ste
Реферат: The frequency generator employs two silicon transistors (15, 18) of opposite type, connected in a resonance circuit, which is powered by a battery connected to the input terminal (14). An inductor (19) is used so as to form an oscillator (10), the frequency of which is several times greater than the control frequency of the display circuit (11). The first transistor (18) has the resonance inductor (19) connected in its load circuit, with a variable precision capacitor (20) coupling this transistor (18) with the base of the second transistor (15). The capacitance of the variable capacitor (20) is less than that of the inherent capacitance of the two transistors (15, 18) the latter providing the capacitance for the resonance circuit.
Multichannel device for measuring time intervals
Номер патента: RU2627136C1. Автор: Николай Анатольевич Грязнов,Евгений Николаевич Соснов,Сергей Иванович Артамонов,Виктор Иванович Купренюк. Владелец: Федеральное государственное автономное научное учреждение "Центральный научно-исследовательский и опытно-конструкторский институт робототехники и технической кибернетики" (ЦНИИ РТК). Дата публикации: 2017-08-03.