The range to which a given measurement agrees with the standard value for that measurement the ability of a scale to provide a result that is as close as possible to the actual value. Example, if a known calibration standard weight of 100.000 grams was placed on the SciTech SP250 and the display shows 100.002 grams we could say the accuracy of the equilibrium is 0.002 grams or 2 milligrams. Accurateness tells how close a balance gets to the real value.
The accuracy of the scale is very delicate to the calibration process. But in an ordinary weighing machine it displays 100.87 grams, which shows the difference of both the mechatronic weighing has an accuracy of +/_0.002 But for ordinary the scale goes quit more with is less precise and can’t be used for precise weighing.
Key point comparing both weighing machine. (Development)
• Development process digital weighing machine has given a correction setting with can be altered according to the +/_ of the display showing.
• Some of them comes with a glass casing to ignore the effect of air in the weighing system.
• Accuracy in the digital weighing machine is more as compare to ordinary weighing machine.
• The working principle of digital weighing machine is that its works on the principle of strain gauges.
• That is when minute load is applied on strain gauges it is detected and interpreted so it is more accurate because it can detect variation in microns.
• In case of conventional it’s not that much accurate working.
Application of digital weighing machine
It is used in places such as gold or jewellery maker who needs an accurate weighing system because of the expensiveness of the material he has to be precise of the weighing.
It is also used for laboratory purpose where a correct amount of reactant or material is use for experiment
Task 3(b)
Welding operational robot.
COST EFFICIENT
• Peripherals reamers, wire cutters, neck inspection tools and clutches or solid mounts are all supplementary equipment that can protect the robotic welding system investment, maximize its effectiveness and reduce costs.
• To protect consumables against costly damage before even placing them on the robotic MIG gun, it is significant to employ proper storage and handling practices.
• Preventive maintenance (PM) is another risky way to save money on robotic welding, primarily by preventing unscheduled downtime, poor quality parts and costly repairs. It can even help avoid failures that require equipment replacements. The robot, as well as the robotic MIG gun, cables and consumables can all benefit.
• To prevent problems like bird-nesting or poor wire feeding both issues that lead to downtime and added costs it is important to select the right MIG gun liner and install it properly.
RELIABILITY & EFFICIENCY
• A reliable estimate of the total loss of efficiency in construction work due to harsh ambient conditions requires a thorough analysis of the meteorological data – humidity, precipitation, temperature and wind velocity and its changes throughout the year and the working day, in the various geographical regions.
• Robotic welding is commercially available and used vehicle manufacturing. This application can and should be include robotic welding.
• Another way automotive robots have changed the industry is by meeting industry anticipations.
• Robots used in the auto industry can complete not just one task but a variety of tasks such as welding, finishing, painting, and many more.
• They are capable of being programmed to perform complex jobs like welding. New industry ideals call for lighter cars, but with this comes the need for tighter welding.
• This can only be proficient through robots to ensure there is no rattling (another industry standard) and that the vehicle is safe,
• Robotic is key in producing new, advanced, and high quality cars.as industry repeatability specifications become more accurate, robots are meeting them at faster speeds making them more efficient than humans.
ASSEBLING ROBOT (Warszawski, 2015)
Robots are used in the automobile industry to assist in building car. These high powered machine have mechanical arms with tools, wheels and sensors that make them ideal for assembly line jobs.
Cost implication.
Development costs include all expenses associated with labour, materials and facilities used for, testing, researching and evaluating of the various alternatives of robotic solutions. The development costs, if incurred by the isolated sector, are included in the ultimate price of the
product.
If they are financed by the public resources – can be defensible by indirect benefits accrued to the society both in terms of general productivity increase, and of functional and basic knowledge assimilated during the development process.
• Not only do robots save more money in manufacturing costs, but they also perform tough task at a pace no human
Robot also make car manufacturing safer because they can take on dangerous and difficult job in place humans.
• Automotive industry robot is capable of performing a wide range of task such as installation, painting and welding.
Reliability
• Most construction work is carried out outdoors, and its productivity is there for very much affected by the prevailing weather conditions.
• Surface mounted device are particularly relevant for assembly by robots.
• These devices differ from the conventional electronic components because they do not have long wire lead which contact to the broad of the PWB. The conventional component lead are inserted through drill hole.
Efficiency
• In a production plant for complex assembled products there could be up to several hundred robots implemented for handling and joining operations. Thus, improvements in robot motion can have a huge impact on energy consumption and equipment utilization.
• By merging recent algorithms for collision free numerical optimal control and for optimal sequencing.
• The algorithm has been successfully applied to several industrial cases demonstrating that the proposed method can be used effectually in practical applications to find fast and energy efficient solution.
Cutting operational robot.
Cost implication
Investment costs – include depreciation and the interest on investment. The parameters which must be known for their assessment are the cost of new equipment, its economic life, the salvage value at disposal, and the interest charged on investment. The anticipated economic life of 5-10 years for industrial robots may be somewhat shorter for construction
Robots operating under rugged environment conditions.
Reliability
• The provisional reliability estimation is extended to real-time applications using time-series analysis techniques to bridge the gap among physical measurement and reliability prediction.
• The model is based on empirical measurements, self-generating, and valid to online applications.
• This approach has been demonstrated to the sample level Physical performance is measured and forecast across time to estimate reliability. Time-series analysis is adapted to forecast performance.
Efficiency
Because of computer aided this machines are precise and take less time for a job
It is efficient for finishing and polishing applications, the parts are frequently smaller.
For these applications, robots from MH line are a good choice for the task.