Then, different weights were hung in the middle. The distance between the two ends was changed to apply a pre-strain. Thirdly, the simulated results are experimentally verified by using an FBG fixed by its two ends. It is found that the induced-strains at the maximum amplifications approximately equal to the pre-strains. The horizontal coordinates, the induced-strains at the maximum amplifications, are the requirements to obtain the maximum amplifications. The vertical coordinates are the maximum amplifications at the pre-strains. Secondly, the horizontal and vertical coordinates of the peaks are located in the simulated results. There is a peak in every curve, which is the stationary point of the curve. Firstly, at 3 different pre-strains, the relationships between the induced-strains and amplifications are simulated by 3 curves, respectively. How to obtain the maximum amplification at a given pre-strain? What is the maximum amplification? As far as we know, these problems have not been solved yet. Diagram of the string transverse-force amplifier The amplification was different for different transverse forces or at different pre-strains.ДЇig. As the transverse force increases, the string becomes longer and its strain increases.) 0.10 and 0.68N transverse forces were amplified 9.60 and 5.05 times at в€ј0.00004 pre-strain and 3.15 and 3.84 times at в€ј0.00155 pre-strain, respectively. (Strain is the ratio of the length change to the original length, and pre-strain is the strain when the string is fixed. However, the pre-strain is often not negligible. The amplification would be infinite if the pre-strain could be negligible and the transverse force could be infinitesimal. The transverse force is amplified and converted into the axial force. Then, when a transverse force is applied to the middle, a much stronger axial force along the string can be induced. ДЇigure 1 shows that a weightless string is lightly stretched and fixed by its two ends. When a 1.76-gram inertial object was moved axially and transversely, its sensitivity in the transverse direction was 24 times that in the axial direction. To further improve the sensitivity while using the same inertial object, the inertial object was moved transversely to the FBG. To improve the sensitivity, an FBG was fixed by its two ends, and an inertial object was moved axially along the FBG. The original FBG accelerometer was developed by embedding/attaching an FBG to a base and transferring the strain change of the base to the FBG. FBG is sensitive to its strain change, based on which many FBG accelerometers have been proposed. IntroductionДЇBG (fiber Bragg grating) has many inherent advantages such as frequency modulation and easy multiplexing. В© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement 1. This revelation improves the understanding of FBG accelerometers using transverse forces. Here, we theoretically prove and experimentally verify that the maximum amplification occurs when the strain induced by the transverse force approximately equals the pre-strain. At a given pre-strain of the string, the maximum amplification and requirements to obtain it have not been clearly demonstrated. So, the transverse force is amplified and converted into the axial force. When a transverse force is applied to a lightly stretched string fixed by its two ends, a much stronger axial force along the string will be induced. Note: Author names will be searched in the keywords field, also, but that may find papers where the person is mentioned, rather than papers they authored.ДЇiber Bragg grating (FBG) accelerometers using transverse forces are very sensitive.Use a comma to separate multiple people: J Smith, RL Jones, Macarthur.Use these formats for best results: Smith or J Smith.For best results, use the separate Authors field to search for author names.Use quotation marks ' ' around specific phrases where you want the entire phrase only.Question mark (?) - Example: 'gr?y' retrieves documents containing 'grey' or 'gray'.Asterisk ( * ) - Example: 'elect*' retrieves documents containing 'electron,' 'electronic,' and 'electricity'.Improve efficiency in your search by using wildcards.Example: (photons AND downconversion) - pump.Example: (diode OR solid-state) AND laser.Note the Boolean sign must be in upper-case. Separate search groups with parentheses and Booleans.Keep it simple - don't use too many different parameters.

X force amplifier