{"title":"TRANS-TEK INC.","description":"","products":[{"product_id":"trans-tek","title":"Trans-tek Inc.","description":"\u003cp\u003eFor nearly half a century, Trans-Tek, Inc. has been providing the very best Linear and Angular Displacement and Linear Velocity Transducers in the business. Trans-Tek's main focus is Linear Sensors, which are based on LVDT (Linear Variable Differential Transformer) technology.\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"fontsize141\"\u003eFor more information:\u003ca href=\"http:\/\/transtekinc.com\/\"\u003e http:\/\/transtekinc.com\/\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"medital","offers":[{"title":"Default Title","offer_id":14852911750,"sku":"","price":0.0,"currency_code":"ILS","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1148\/4670\/products\/logo__0009_trans_tek.jpg?v=1454322485"},{"product_id":"lvdt-linear-position-transducer","title":"LVDT – Linear Position Transducer","description":"\u003cp\u003eAn \u003cstrong\u003eLVDT\u003c\/strong\u003e, or \u003cstrong\u003eLinear Variable Differential Transformer\u003c\/strong\u003e, is an inductive device containing primary and secondary coaxial wound coils, and a ferromagnetic core. Exciting the primary coil with an AC voltage generates an electromagnetic field. The core links the electromagnetic field of the primary coil to the secondary coils, inducing a voltage in each. The secondary coils are typically wired in series opposition, producing AC voltages 180 degrees out of phase with each other. The magnitude of the voltage in each secondary depends on the position of the core relative to the coils.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1148\/4670\/files\/LVDT_-_1_large.jpg?16408244747103394415\" alt=\"\"\u003e \u003c\/p\u003e\n\u003cp\u003eWhen the physical center of the core is in line with the electrical center of the coils, the voltage in each secondary is equal in magnitude, but opposite in phase. Differencing the two secondary voltages results in “zero” output volts. This is the null position of the LVDT.\u003c\/p\u003e\n\u003cp\u003e \u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1148\/4670\/files\/LVDT_-_2_large.gif?5885026299803646069\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIn reality, there is a small residual voltage left due to factors like winding capacitance and variances in the magnetic materials. Internal or external signal conditioning electronics compensate for this residual voltage, producing a true electrical zero output.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1148\/4670\/files\/LVDT_-_3_large.gif?1234290475625721522\" alt=\"\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1148\/4670\/files\/LVDT_-_4_large.gif?17013927661200215359\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eAn LVDT is designed to have symmetric measurement ranges on each side of null. As the core moves to one side of the null position, the magnitude of one secondary becomes greater than the other. Differencing the two secondary voltages results in a voltage proportional to the core’s distance from null. The phase of this voltage tells us which side of null the core is on.\u003c\/p\u003e\n\u003cp\u003eDC-DC LVDT Operation\u003c\/p\u003e\n\u003cp\u003eSignal conditioning is an important consideration when designing an LVDT into an application. Converting the AC output voltage of the secondaries into a usable DC output voltage requires a demodulator and low pass filtering. Design of the circuitry must take into account frequency response and electrical noise considerations. For convenience and ease of use, Trans-Tek manufactures a complete line of DC-DC LVDTs, also known as DCDTs, containing an integral oscillator\/demodulator.\u003c\/p\u003e\n\u003cp\u003eDiscrete components make up the integral signal conditioner. The oscillator converts the DC voltage input to a high frequency AC voltage, powering the primary coil. A passive demodulator rectifies and differences the AC voltage output from the secondaries before filtering the signal with a low pass RC filter. The magnitude and polarity of the DC output voltage are dependant on the position of the core relative to the null position.\u003c\/p\u003e\n\u003cp\u003eTrans-Tek’s DC LVDTs are input polarity protected, meaning that polarity of the input leads must be observed for proper operation, but the unit will not be damaged by polarity reversal. The DC voltage input can range from 6 to 28 VDC, and must be regulated for best accuracy. The magnitude of the output voltage is controlled by the input voltage. These DC LVDTs also feature input and output circuits isolated both from each other and the coil housing. The result is a transducer which can be used in a floating or ground return system.\u003c\/p\u003e","brand":"Trans-tek","offers":[{"title":"Default Title","offer_id":24867062470,"sku":"","price":0.0,"currency_code":"ILS","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1148\/4670\/products\/LVDT-_Transtek.jpg?v=1469352632"},{"product_id":"lvt-linear-velocity-transducers","title":"LVT- Linear Velocity Transducers","description":"\u003cp\u003eTrans-Tek manufactures and designs Linear Velocity Transducers using inductive technology. Moving a magnet through a coil of wire will induce a voltage in the coil according to Faraday’s and Lenz’ Laws. This voltage is proportional to the magnet’s velocity and field strength. TRANS-TEK LVTs use this principle of magnetic induction, with a permanent magnet and a fixed geometry coil, so the output voltage of the coil is directly proportional to the magnet’s relative velocity over its working range.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1148\/4670\/files\/LVT-_Linear_Velocity_Transducers_large.gif?18199671596726991606\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eDuring operation in the working range of the transducer, both ends of the magnet are inside the coil. With a single coil this would give zero output because the voltage generated by one pole of the magnet would cancel the voltage generated by the other pole. To avoid this, the coil is divided into two sections, so the N (North) pole of the magnet will induce a voltage in one coil and the S (South) pole will induce a voltage in the other coil. These two coils are then connected in series-aiding, to obtain a DC voltage output proportional to the magnet’s velocity.\u003c\/p\u003e\n\u003cp\u003eFor additional information:\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/transtekinc.com\/support\/technical-topics\/lvt-technology\/\"\u003ehttp:\/\/transtekinc.com\/support\/technical-topics\/lvt-technology\/\u003c\/a\u003e\u003c\/p\u003e","brand":"Trans-tek","offers":[{"title":"Default Title","offer_id":24867112582,"sku":"","price":0.0,"currency_code":"ILS","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1148\/4670\/products\/LVT_-_Transtek.jpg?v=1469352802"},{"product_id":"adt-angular-displacement-transducers","title":"ADT - Angular Displacement Transducers","description":"\u003cp\u003eTrans-Tek designs and manufactures a complete line of Angular Displacement Transducers (ADTs) using capacitive technology.\u003c\/p\u003e\n\u003cp\u003eSince the capacitive element is powered by a high frequency AC signal, we include sophisticated electronics in the final assembly to provide convenient DC in – DC out operation. A 3-pole filter on the output signal delivers a desirable mix of low output ripple and high frequency response, making these transducers ideal for applications requiring an absolute, high accuracy, angular position sensing device.\u003c\/p\u003e\n\u003cp\u003eFor more information:\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/transtekinc.com\/support\/technical-topics\/adt-technology\/\"\u003ehttp:\/\/transtekinc.com\/support\/technical-topics\/adt-technology\/\u003c\/a\u003e\u003c\/p\u003e","brand":"Trans tek","offers":[{"title":"Default Title","offer_id":24867139526,"sku":"","price":0.0,"currency_code":"ILS","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1148\/4670\/products\/ADT-_Transtek.jpg?v=1469352836"}],"url":"https:\/\/medital.com\/collections\/trans-tek.oembed","provider":"Medital","version":"1.0","type":"link"}