{"id":76578,"date":"2024-02-08T13:50:24","date_gmt":"2024-02-08T13:50:24","guid":{"rendered":"https:\/\/essays.homeworkacetutors.com\/linear-variable-differential-transformer-and-strain-gauge-transducer\/"},"modified":"2024-02-08T13:50:24","modified_gmt":"2024-02-08T13:50:24","slug":"linear-variable-differential-transformer-and-strain-gauge-transducer","status":"publish","type":"post","link":"https:\/\/www.colapapers.com\/us\/linear-variable-differential-transformer-and-strain-gauge-transducer\/","title":{"rendered":"Linear Variable Differential Transformer and Strain Gauge Transducer"},"content":{"rendered":"
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There are many types of transducers displacement measurements, Linear variable differential transformer (LVDT), capacitive transducer, potentiometer transducer, resistive transducer, optical transducer, etc. For our experiments purpose we use the LVDT, since it\u2019s able to produce high output for relatively small displacement and for strain measurement we use the strain gauge transducer.<\/p>\n

Linear Variable Differential Transformer(LVDT):<\/h2>\n

The linear variable differential transformer (LVDT) is a type of electrical transformer used for measuring linear displacement. The transformer has three solenoid coils placed end-to-end around a tube. The centre coil is the primary, and the two outer coils are the secondary\u2019s. A cylindrical ferromagnetic core, attached to the object whose position is to be measured, slides along the axis of the tube, the figure below shows the construction of the LVDT. When an alternative current is applied into the primary coil, a voltage is induced in each secondary core; those voltages are directly proportional to the mutual inductance induced with the primary.<\/p>\n

As the core moves, these mutual inductances change, causing the voltages induced in the secondary\u2019s to change. The coils are connected in reverse series, so that the output voltage is the difference between the two secondary voltages. When the core is in its central position,the distance between the two secondary\u2019s is equal ,hence equal but opposite voltages are induced in these two coils, so the output voltage is zero.<\/p>\n

When the core is displaced in one direction, the voltage in one coil increases as the other decreases, causing the output voltage0 to increase from zero to a maximum. This voltage is in phase with the primary voltage. When the core moves in the other direction, the output voltage also increases from zero to a maximum, but its phase is opposite to that of the primary. The magnitude of the output voltage is proportional to the distance moved by the core (up to its limit of travel), which is why the device is described as \u201clinear\u201d. The phase of the voltage indicates the direction of the displacement. Because the sliding core does not touch the inside of the tube, it can move with little friction, making the LVDT a highly reliable device. LVDTs are commonly used for position feedback in servo-mechanisms, and for automated measurement in machine tools, control systems, robots, and many other industrial and mechanical systems.<\/p>\n

Strain Gauge:<\/h2>\n

Strain gauge transducers are kind of sensors that transduce(convert) strain applied into an electrical signal ( usually voltage) for the purpose of pressure sensors applications, force and torque measurements. It was invented by Edward E. Simmons and Arthur C. Ruge in 1938, the most common type of strain gauge consists of an insulating flexible backing which supports a metallic foil pattern. A strain gauge is simply a resistor, whose value varies with strain in the material to which it is bonded. They can be used in various fields when a readable value needed to be modeled from a force or strain applications. The construction of the strain gauge sensor is as shown in the following figure. As seen in the figure it has a fine resistance wire, sensitive for load weights.<\/p>\n

Objectives:<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

There are many types of transducers displacement measurements, Linear variable differential transformer (LVDT), capacitive transducer, potentiometer transducer, resistive transducer, optical transducer, etc. For our experiments purpose we use the LVDT, since it\u2019s able to produce high output for relatively small displacement and for strain measurement we use the strain gauge transducer. Linear Variable Differential Transformer(LVDT): […]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5811],"tags":[5676,9877,9801,9873,9867,9838,9799,9868],"class_list":["post-76578","post","type-post","status-publish","format-standard","hentry","category-engineering","tag-1500-words-assessment-task","tag-assignment-write-a-page-essay-in-apa","tag-best-writers-per-hour","tag-ca","tag-create-a-paper-using-the-following-criteria","tag-help-writing-week-discussion-post-responses","tag-research-essay-pro","tag-usa-essay-ultius-writer"],"_links":{"self":[{"href":"https:\/\/www.colapapers.com\/us\/wp-json\/wp\/v2\/posts\/76578","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.colapapers.com\/us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.colapapers.com\/us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.colapapers.com\/us\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.colapapers.com\/us\/wp-json\/wp\/v2\/comments?post=76578"}],"version-history":[{"count":0,"href":"https:\/\/www.colapapers.com\/us\/wp-json\/wp\/v2\/posts\/76578\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.colapapers.com\/us\/wp-json\/wp\/v2\/media?parent=76578"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.colapapers.com\/us\/wp-json\/wp\/v2\/categories?post=76578"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.colapapers.com\/us\/wp-json\/wp\/v2\/tags?post=76578"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}