Device for measuring the active power in a load circuit, constructed as resonance circuit, of an electrical static converter
Номер патента: DE3625011A1
Опубликовано: 21-05-1987
Автор(ы): Hans-G Dipl Ing Matthes, Klaus Ing Grad Reiffenrath
Принадлежит: AEG Elotherm GmbH
Опубликовано: 21-05-1987
Автор(ы): Hans-G Dipl Ing Matthes, Klaus Ing Grad Reiffenrath
Принадлежит: AEG Elotherm GmbH
Реферат: From the input power supplied to the rectifier (1) and the voltage present across the load circuit (5), a measurement value for the active power is formed in a multiplier (15), taking into consideration the polarities of this load circuit voltage and of the current supplied to the load circuit (5). This measurement value can be measured in a simple moving coil measuring instrument. Apart from the medium frequency range which can also be detected with expensive crossed-coil measuring instruments, measurements at low frequencies below 50 Hz and high frequencies above 20 kHz can also be carried out using the invention. <IMAGE>
System and method for measuring the thickness or temperature of a circuit in a printed circuit board
Номер патента: US20030001593A1. Автор: James Kronrod. Владелец: Broadcom Corp. Дата публикации: 2003-01-02.