BMC messsysteme GmbH (bmcm) – innovative measurement technology “made in Germany” Maisach/Munich. The insulating 5B-Messverstarker of the BMC messsysteme GmbH (bmcm) provide optimal signal conditioning, effective noise suppression and protection against high potentials. Accurate and reliable measurements are guaranteed. Is not just measured in measurement technology. So metrics are meaningful, the quality of the measurement Setup is critical. This can be greatly enhanced through the following points: avoiding ground loops have measuring signal, measuring system, PC and supply a different ground connection, a transient flows.
In the most benign case, this distorts the signal. The historical lack of separation of potentials, but is often the cause for the destruction of the measuring system. Isolation is the appropriate action here. Suppression of common-mode voltages a common misconception is the assumption that differential measurements are the solution for interference-free measurement results. In this case is ‘only’ the voltage difference between two Measured analog connections. A static or dynamic increase of the potential of the actual signal voltage is added the so-called common-mode voltage to the measuring signal. This can quickly exceed the permissible input voltage of the measuring system.
When testing a battery, for example the (small) voltage of each individual cell is measured. The common-mode voltages are generated by the rest of the cells of the battery, but not be separated off, this can make useless the measurement signal or be a serious danger to the measuring system. Also in this case, galvanic separation or isolation is the way. Sensors provide signal conditioning often signals in the Millivolt range. Upstream a measurement amplifier allows the optimal adjustment of the signal to the full input range of a measuring system so that can be fully exploited the possibilities of the system and smallest differences of signal detected. Through the use of an insulating measuring amplifier these requirements immediately. The MA-Series 5B measuring amplifier of BMC messsysteme GmbH (bmcm) have a 3 times galvanic isolation between PC measuring system, measuring signal and supply. This provides maximum immunity to interference for the measuring signal and maximum protection for the measuring system. Noisy environments, for example, caused in the industrial sector by machines do not affect the measurement result. The amplifiers have a supply voltage for sensors and different measuring ranges and filter cutoff frequencies, which are set via dip switches on the module. Potentiometers allow the calibration of offset and gain. The manufacturer of measurement bmcm offers the transmitters in three versions: with the MA-U for voltage measurements with high-bandwidth (50 kHz) even the smallest peaks in extremely small signals remain not undetected. The many adjustable measuring ranges of the MA-UI enable an optimal adjustment of voltage and current signals. Worth highlighting is the universal measuring amplifier MA-UNI, with the voltage and current other physical quantities (resistance, temperature, strain gauge, LVDT, etc.) can be recorded. Various applications are possible by setting of dip-switches simply, without requiring the purchase of other measuring amplifier. ger/prgr measamp.html for easy connection of 5b on sensors and PC measuring system offers bmcm different amplifier boxes (AMS series) and backplanes (AP series). University of MA, MA-UI, MA-U: A strong team universal and unique.