BMC 31

The BMC 31 was developed for applications which requires a maximum independence of a computer. The BMC 31 can store up to 250 measurement values in a non-volatile memory. As soon as the system is connected to a computer, the measured values can be transmitted to the computer with the delivered software. With the supplied IR remote control, the BMC 31 can be used with all it's functions completely independent of a computer.

The following can be set and controlled by using the remote control:
Setting the measuring base, gain, threshold, velocity in m/s or ft/s, sensor check, remote control test, deletion of the last measured value, deletion of the whole series.

Calculations such as
Minimum, maximum, average, standard deviation, extreme spread, number of the measurements and much more.   The BMC 31 can also be controlled completely by a PC through the included software .

The Possibilities
Device control via IR remote control or PC-Software. Single Shot and Full Auto mode measurements. Direct indication of velocity, energy and Rate of Fire via IR Remote control and PC-Software. In the Software, the measurement values can be indicated in tabular or graphic form.

The Hardware
The BMC 31 has specially designed hardware, which makes it possible to get measurements without the main processor. This special hardware, together with the digital controlled light screen amplifiers allows the BMC 31 it's unique accuracy. The extremely precise measurement clock of 40MHz makes measurement resolution of 0.05m/s at a speed of 1000m/s possible.

Interfaces
The BMC 31 is delivered with 3 interfaces. There are 2 serial interfaces; RS 232, RS 485 and a USB 2 interface. As an option, there is also a wireless interface available, that allows a connection within hundreds of meters, depending on the environment.

Light screen amplifier
The light screen amplifier is used to filter, boost and digitize the signals generated by the light screens when a bullet passes. The amplifier can be controlled completely digitally with the IR- Remote control or PC-Software. Since using completely digitally controlled amplifiers without mechanical parts, like potentiometers, the reliability of our systems has increased. The BMC 31 self checks, and if neccessary regulates, its light screens and amplifier every 5 seconds to ensure always the best amplifier adjustments. Thus, the BMC 31 systems are completely independent from ambient conditions and are capable of functioning in complete darkness and sunlight. The permanent available, optimized setup gives the BMC 31 its superior accuracy. The new measurement controller includes a highly effective real time blast wave supressor. This supressor is useful mainly with large light screen systems, but can also be useful to eliminate electrical disturbances.

Calibration
Calibration is a basic requirement within a QM system. In this case, the BMC 31 is optimally equipped and can be calibrated. With our specially built calibration system the BMC 31 is able to be calibrated and easily tested . The calibration scheme used is testing not only the BMC 31 main unit but includes also the light screen and the amplifier path in the testing and calibration process. This gives the user the highest confidence of extremely accurate measurement.

The Software
The win32 Software, delivered with the BMC 31 system is developed for Win2000 ®, WinXP ® and Windows7 ®. The user friendly software includes configurable database for the user, weapon, ammunition and other data. The software allows the use of two BMC 31 systems at the same time. This feature is to be used for e.g. redundant measurements and ballistic coefficient calculation.

All Variables, used in the software, like database entries, series information, user text, statistic values and pictures can be used in the report generator as well as a formula parser to create user defined printouts.

To the delivery standard belongs a infrared remote control unit, that can be used to control the BMC 31 completely.

The standard light screen LS 260 already allows very precise measurements.
Because of the new, digital controlled light screen amplifiers, it is very ease, to connect different light screens to the system.