compensation balance การใช้

• This problem was initially solved through the use of the compensation balance.
• He redesigned the compensation balance and developed two designs that showed promise.
• The compensation balance consisted of a ring of steel sandwiched to a ring of brass.
• Through continuous experimentation, he worked out a way to make an effective but simple form of compensation balance.
• This Patent covered various designs of compensation balance and the invention of a Remontoire for use in Marine chronometers.
• The standard Earnshaw compensation balance dramatically reduced error due to temperature variations, but it didn't eliminate it.
• John Brockbank employed Earnshaw to make his pattern of chronometer, but with Brockbank's design of compensation balance.
• For use as the compensation balance he developed a slight variation of the invar alloy which had a negative quadratic coefficient of expansion.
• Along with the earlier alloy Elinvar, this alloy made obsolete the expensive compensation balance used in precision timepieces in the 19th century.
• Johnson was involved with this, the title of which was " The Compensation Balance and its Adjustment in Chronometers and Watches ".
• Although these probably needed a lot of adjustment, they appear to have worked well compared to his previous attempts at a compensation balance.
• Not only this, but adjustments to the compensation balance and the balance spring could be carried out in a simple, calculated way.
• The bimetallic compensation balance and the spring detent escapement in the forms designed by Earnshaw have been used essentially universally in marine chronometers since then.
• Around 1765, Pierre Le Roy ( son of Julien Le Roy ) invented the compensation balance, which became the standard approach for temperature compensation in watches and chronometers.
• He is also known for his improvements to the transit clock at the Royal Greenwich Observatory in London and his invention of a chronometer escapement and a form of bimetallic compensation balance.
• Even though he produced a number of pocket timekeepers, from around 1772-1778, Arnold was still experimenting with different types of compensation balance and methods of balance spring adjustment.
• Josiah Emery used, with Arnold's permission, an earlier form of his compensation balance and helical balance spring, in conjunction with the detached lever escapement of Thomas Mudge.
• Nevertheless, a year later, in 1783, Earnshaw through another watchmaker, Thomas Wright took out a patent that included Earnshaw's pattern of integral compensation balance and spring detent escapement in the multiple specification.
• The bimetallic compensation balance and the spring detent escapement in the forms designed by Earnshaw have been used essentially universally in marine chronometers since then, and for this reason Earnshaw is generally regarded as one of the pioneers of chronometer development.