{"product_id":"esr-nmr-control-unit","title":"ESR-NMR Control Unit","description":"Experimental topics that can be studied with the unit include:\u003cbr\u003e\u003cbr\u003e• Resonance absorption of a high-frequency oscillating circuit\u003cbr\u003e• Dependence of resonance frequency on magnetic fields\u003cbr\u003e• Resonant line widths\u003cbr\u003e• Electron and proton spin\u003cbr\u003e• Magnetic moment of atomic particles and nuclei\u003cbr\u003e• Determination of nuclear g-factors\u003cbr\u003e• Nuclear-spin tomography\u003cbr\u003e \u003cbr\u003e \u003cbr\u003eThe ESR\/ NMR control unit is used in conjunction with the ESR module (1022705) to investigate electron spin resonance (ESR) in DPPH (diphenyl picryl hydrazyl) and with the NMR module (1022706) to study nuclear magnetic resonance (NMR) in glycerine, polystyrene and Teflon. \u003cbr\u003eResonances can be observed as a result of transitions induced by high frequencies due to changes in an external magnetic field. Reso-nance absorption curves can be viewed using a simple dual-channel oscilloscope. \u003cbr\u003eThe control console provides control and pow-er-supply voltages for the test probe being used and for the pair of coils. It also provides a suitable signal for an oscilloscope and displays the value of the high-frequency signal in Hertz. \u003cbr\u003eThe ESR\/NMR control unit numbered 1022700 is designed for 230 V\/ 50-60 Hz (±10 %) mains voltage supplies, while 1022702 is for 115 V\/ 50-60 Hz (±10 %).\u003cbr\u003e \u003cbr\u003e \u003cbr\u003eEquipment supplied:\u003cbr\u003e1 Control console\u003cbr\u003e1 Plug-in power supply, 12 V AC (230 V, 50\/60 Hz)\u003cbr\u003e \u003cbr\u003eTechnical data:\u003cbr\u003eControl console\u003cbr\u003eProbe input: 4-pin Lemo socket\u003cbr\u003eCoil connectors: Sawtooth current source, 0 − 250 mA, 50 ms, pair of co-axial connectors\u003cbr\u003eMagnetic field output: proportional to coil cur-rent, 0 to 1 V, BNC socket\u003cbr\u003eSignal output: Resonance signal, 0 to 1V, BNC socket\u003cbr\u003eFrequency range: 45 to 75 MHz approx.(ESR)\u003cbr\u003e11 to 15 MHz approx. (NMR)\u003cbr\u003e \u003cbr\u003eGeneral data:\u003cbr\u003ePower supply: Plug-in power supply 12 V AC, 2.0 A, coaxial power connector 5.5 x 2,5 mm, cable length: 2m\u003cbr\u003eOperating temperature: 5 °C till 40 °C\u003cbr\u003eMaximum relative \u003cbr\u003ehumidity: 80 % \u003cbr\u003eDimensions: console \u003cbr\u003e170x105x45 mm³\u003cbr\u003ePlug-in power supply\u003cbr\u003e100 x 90 x70 mm³\u003cbr\u003eWeight: approx. 1050 g incl. power supply\u003cbr\u003e \u003cbr\u003eElectromagnetic compability:\u003cbr\u003eEmission: EN 55011:2009\u003cbr\u003eImmunity: EN 61326-1:2013\u003cbr\u003e \u003cbr\u003eElectrical safety:\u003cbr\u003eSafety regulations:\u003cbr\u003e                            DIN EN 61010-1\u003cbr\u003e                            DIN EN 61558-2-6\u003cbr\u003eTransformer: safety transformer ac-cording to DIN EN 61558-2-6 \u003cbr\u003eAppliance class: 2\u003cbr\u003ePollution severity: 2\u003cbr\u003eType of protection: IP20\u003cbr\u003e \u003cbr\u003e \u003cbr\u003eAdditionally required equipment:\u003cbr\u003e1 ESR module 1022705 \u003cbr\u003eor\u003cbr\u003e1 NMR module 1022706\u003cbr\u003e1 Digital oscilloscope, 2x30 MHz 1020910\u003cbr\u003eor\u003cbr\u003e1 PC Oscilloscope, 2x 25 MHz 1020857\u003cbr\u003e2 High-frequency cables 1002746","brand":"3B Scientific","offers":[{"title":"Default Title","offer_id":49419166810389,"sku":"3BS1022700","price":2664.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/1022700_01_ESR-NMR-Control-Unit.jpg?v=1761031928","url":"https:\/\/unitedsupplycorp.com\/products\/esr-nmr-control-unit","provider":"United Supply Corp.","version":"1.0","type":"link"}