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TY - CONF AU - Araujo, W.R. AU - Errada, M.B. AU - Galante, D. AU - Paulino, G. ED - Schaa, Volker RW TI - Implementation of a Precision Logarithmic Ammeter J2 - Proc. of PCaPAC2016, Campinas, Brazil, October 2528, 2016 C1 - Campinas, Brazil T2 - International Workshop on Personal Computers and Particle Accelerator Controls T3 - 11 LA - english AB - A precision and low cost ammeter is in development for the acquisition of sensor signals such as photodiodes, gold mesh (by photoelectron effect) and ionization chambers. One of the problems of conventional ammeters is the automatic scale selection, which hinders many measurements performed in ample energy range. The ammeter in development is based on a different methodology than present on most commercial systems, using a logarithmic amplifier. This choice of can provide a logarithmic response output in the range of pico to milliamperes. In addition, the system will have a trigger input for synchronism with external events and a Ethernet interface with EPICS driver. The electronic board is in development by LNLS, and is being installed and tested at the TGM Beamline. PB - JACoW CP - Geneva, Switzerland SP - 97 EP - 100 KW - ion KW - experiment KW - electron KW - operation KW - controls DA - 2017/09 PY - 2017 SN - 978-3-95450-189-2 DO - 10.18429/JACoW-PCaPAC2016-THPOPRPO05 UR - http://jacow.org/pcapac2016/papers/thpoprpo05.pdf ER -