Key Features of Precision Electronic System For Hard Bearing Dynamic Balancing Machines

• High resolution - It has resolution of upto 0.05% of fullscale reading which goes for accurate unbalance indication. The effective resolution for angle indication works out tobe better then 0.2 degree.
• Digital tachometer - It is provided with a digital electronic speed indicator [Tachometer is supplied with multispeed machine only]
• Automatic Speed Tracking Filters [Synchronous Filters] - The electronics is provided with synchronous filters with photoelectric scanning which eliminates all spurious vibrations and signals. There is no need to manually tune these filters as this is done automatically by the electronics. This system is much superior to the stroboscopic system which requires manual tuning to balancing speed. This would be apparent from the following paragraph from the International Specifications ISO 2953."
• Balancing machine electronics can give `supression of unbalance` due to internal electrical offsets and some other reasons.
• This means that the machines can show zero or a small reading while the rotor assembly has a large unbalance present in it.
• This phenomenon results in inferior balancing. In the DT-100 electronic unit has an auto zero system correct zero offsets and internal errors.
• Secondly, the filter automatically tracks the balancing speed and, therefore, there is no error possible due to incorrect manual tuning.
• Thirdly, the zero setting switch helps in checking the exact zero points.
• Fourthly, it is also easy to compensate for drive errors and other errors without the need for vector calculations as the readings are in component [caretesian] from.
• Digital Unchanging Memory - The electronic unit has a digital memory which will not change with time.
• The stored readings will remain exactly the same after 10 or 20 hours or even after several days.
• Permanent Calibration- The electronics system is suitable for permanently calibrated `hard bearing` machines. No trial of calibration runs are required. The rotor data is simply fed-in and the very first balancing run gives unbalance values. The rotor data is fed-in by the use of a programmer switch and potentiometers. This method is a well tried out method and is found convenient by unskilled operators.
• Solid State Pickups - The electronics system works with Solid State Force Pickups. Unlike electromagnetic pickups [moving coil & magnet pickups ] which have moving parts. These are sealed pickups and no dust particles or chips can get into them giving them greater reliability.
• Polar Indication - Amount and angle indication in provided for addition / removal of weight.