Thermistors are manufactured by a large variety of ven-dors. PTC and NTC thermistor electrical symbols. This allows it to change its resistive value in proportion to small changes in temperature. endstream endobj 38 0 obj << /Type /FontDescriptor /Ascent 0 /CapHeight 0 /Descent 0 /Flags 4 /FontBBox [ 49 -177 656 706 ] /FontName /GPCDHD+TT171EO00 /ItalicAngle 0 /StemV 0 /CharSet (/a111) /FontFile3 39 0 R >> endobj 39 0 obj << /Filter /FlateDecode /Length 215 /Subtype /Type1C >> stream Thermistor is composed of a sintered mixture of metallic oxides, such as Mn, Ni, Co, Cu, Fe, & U. ¥H[eDkï7Ìî€làØ ‘X Úm~�ëpGö��"‡•5 µè1•ú[-®Ö�ú¾›hOğ5?…±tèï�?¯á“ü¶Ì®ƒ½Ò¾ŠÁ£´¶ç;ëCla5àR�‘µgv) 0000150268 00000 n INDUSTRIAL ELECTRONICS LAB REPORT M.ZAHID TUFAIL 10-EL-60 The resistance of the NTC Thermistor varies over a wide range for the temperature range available within the heated enclosure. Experiment 5: Thermocouples (tbc 1/14/2007, revised 3/16/2007, 3/22,2007, 3/16/2008) Objective: To implement a thermocouple circuit, including thermistor-based cold-junction compensation, for temperature sensing. 4. ˆº”¶œ^)*í¬¶à–kõº!rHgèS›Ñæ«Êéç˜ı�ËÜÁN:T�ööè°72€˜ ¶Á³ºdM–ZìÓyE{QÓv …7�0)7ªÉş u™%L(³É3°‹Zéü÷Ó5h�®c•€pÆ‘~ãI=nêRÔkHM}s³JS×Ô|&Soô›ÛÃZC|ZfÚèæ@é‚»7à0)öÛi|O¸©ø€O/G�!A¥éÉUñx^¶B%p¶ƒíQ¶‚Í°²ş„BÖŒ 2. What is the maximum value of Thermistor resistance in the experiment? 8. x�b```b``������m� Ā B@16�9��M���C�� 0000106353 00000 n 22 g solid wire 8. TEMPERATURE MEASURMENT IN EXPERIMENT WORK Reeya Pandya 1 H.O.D , E.E Department, Dungarpur College of Engineering and Technology, (Raj). Updated: Jan 25, 2015. pptx, 193 KB. 1 PHYSICS EXPERIMENTS “Imagination is more important than knowledge.”- Albert Einstein “The only thing that interferes with my learning is my education.” - Albert Einstein “Two things are infinite: the universe and human stupidity; and The word thermistor is a combination of words “thermal” and “resistor”. Now that you have calibrated the thermistor you can do the second experiment. %PDF-1.5 %���� P5-06 Resistance of LDR & thermistor. Record the resistance of the thermistor using the ohmmeter. 0000004927 00000 n 3. 0000003163 00000 n 6. . pdf, 67 KB. 0000004904 00000 n 0000009611 00000 n It has the following symbol: At low temperature the thermistor has a high resistance and little current can flow through it. 0000001779 00000 n Seebeck Voltage H‰bd`ad`ddtpvñpÑ 147tõ70 jÿ�áÛóÛõ§ÊÏ0V¹M�ªÿ»»,öü¯»¿ç 1012²ò%"L```l‰«”Ê°œùôû¿¨»À¯2?>ü›ÁşEn’aÓş»IæçU6>6sVûŸ6¢Æ pdf, 67 KB. 5. 0 Their resistance range from 0.5 Ω to 75MΩ and they are available in wide variety of shapes and sizes. 221 0 obj <>stream Connect the ohmmeter to the thermistor. 34 Instrumentation & Measurement Lab Manual EXPERIMENT 14 MEASUREMENT OF TEMPERATURE OBJECTIVE: • To measure temperature of the surroundings using an NTC thermistor. Experimental are analyzed and the parameters determining the performance and working of … The acquired readings appear on the Temperature-Resistance graph as red points 7. Thermistors are used as temperature sensors, for example, in fire alarms. The remainder of this document is concerned with two basic steps in the calibration of a thermistor. 0000003829 00000 n Thermistor temperature sensor (NTC, 10K ohms, jameco.com, PN 207037) 5. 0000007587 00000 n 5. • To sense and control fan accordingly EQUIPMENT: 1. A thermistor is a type of resistor whose resistance strongly depends on temperature.A thermistor is a temperature-sensing element.The aim of experiment is to find its characteristics and temperature coefficient of resistance. … A thermistor is a type of resistor whose resistance is dependent on temperature, more so than in standard resistors. A 10K ohm resistor 9. "A$"ÈÂ*«Am‹€ˆÓ-Óig:ÆLg†i‹µ2Ê¢@QY5l"ëÈ"J°8£Õ"u.ÉÚ�9sNϼwÿ¸ï�s÷wïûİGÃtŒF£YúÉ}¥2§ğğb‘0D(\¹.ğÍlãÑ!ƒDŸnL�Çöüşc‡ŸO�úÕ3c=7�¬±ü»?Èj%æ�_0µ1†™Ğ°UlŒÄ0{[GÇ620#Ì•�‰i˜�9ÆÂ20¬£–7Å`ki6´ZíÚİŒ¾�®£¿2ÊcHjÆœq+“Éœcu³�át¼Ğ$Âdù�?˜z›*M�˜ö˜êͬâ¯ú„Ía/šÛšï6¿lqÚ’°. 177 0 obj <> endobj We can measure the resistance of a thermistor using an ohmmeter.If we know the exact relationship between how changes in the temperature will affect the resistance of the thermistor – then by measuring the thermistor’s resistance we can derive its temperature. View US version. 0000005420 00000 n endstream endobj 178 0 obj <>/Metadata 28 0 R/Pages 27 0 R/StructTreeRoot 30 0 R/Type/Catalog/Lang(en-US)>> endobj 179 0 obj <>/MediaBox[0 0 612 792]/Resources<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/Type/Page>> endobj 180 0 obj <> endobj 181 0 obj <> endobj 182 0 obj <> endobj 183 0 obj [250 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 333 0 0 0 0 0 0 0 0 667 0 667 0 0 0 389 0 0 0 0 0 722 611 0 0 0 611 0 0 0 0 0 0 0 0 0 0 0 0 500 500 444 500 444 0 0 556 278 278 0 278 778 556 500 500 0 389 389 278 556 444 0 500 444] endobj 184 0 obj <> endobj 185 0 obj [250 0 0 0 0 0 0 0 333 333 0 0 250 333 250 0 500 500 500 500 500 500 500 500 500 500 278 0 0 0 0 444 0 722 0 667 722 611 556 0 722 333 0 722 0 889 722 722 556 0 667 556 611 0 0 944 0 722 0 0 0 0 0 0 0 444 500 444 500 444 333 500 500 278 0 500 278 778 500 500 500 500 333 389 278 500 500 722 500 500 444 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 400] endobj 186 0 obj <>stream Thermistor Experiment with Arduino. endstream endobj 220 0 obj <>/Size 177/Type/XRef>>stream Turn the Heater ON by pressing ON the Heater Switch on the screen (Heating Mode). NTC thermistors are used in the Food Handling and Processing industry, especially for food storage systems and food preparation. Thermistors are also commonly used in modern digital thermostats and to monitor the temperature of battery packs while charging. Report a problem. fatenalkazemi A-level Electricity. This resource is designed for UK teachers. Physics; Physics / Energy and electricity; 14-16; View more. FREE (58) fatenalkazemi Density. For each 10 °C rise in temperature, record the resistance and the temperature using On the basis of observations state whether Thermistor is a linear or nonlinear transducer. ��A�8 Yʈ����L f`�� �5�X,"� �X°�a�c�Wg0�f�d��p(w���t�"ƅL�LL&LN���j'1�ܶ��6Á����V�`��P3����W�����&2�j)0\��$��Ypв�EeXb���� ��c� 0000189437 00000 n Thermistor temperature reading over a few oscillations of temperature regulation, with 1˚C overshoot. What are the two basic types of Thermistor? 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