{"product_id":"dcs540-optical-chopper-system","title":"DCS540 Optical Chopper System, 20 Hz–5 kHz, 0.01 Hz Resolution","description":"\u003cdiv class=\"wq-pdp__lbtek-desc\"\u003e\n\u003cp\u003e\u003cem\u003eOptical chopper with interchangeable blades that modulates light for lock-in detection, with TTL\/CMOS reference I\/O.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe DCS540 optical chopper modulates a light beam at frequencies set with 0.01 Hz resolution, providing the reference signal for lock-in detection. A 2.4-inch LCD and a single encoder knob handle local operation, and all functions can also be controlled and read over USB. Interchangeable blades with 2 to 60 slots cover different frequency ranges, including a dual-frequency inner\/outer blade.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eChopping frequency 20 Hz–5 kHz; blade options from 1 Hz (2-slot blade)\u003c\/li\u003e\n\u003cli\u003e0.01 Hz frequency resolution, 250 ppm\/°C typical frequency stability\u003c\/li\u003e\n\u003cli\u003e2.4-inch 320 × 240 LCD with 6-digit frequency display\u003c\/li\u003e\n\u003cli\u003eSingle photoelectric encoder knob for operation\u003c\/li\u003e\n\u003cli\u003eBNC input and output, standard TTL\/CMOS compatible\u003c\/li\u003e\n\u003cli\u003eRS-232-to-USB interface; all functions controllable via USB\u003c\/li\u003e\n\u003cli\u003eSix blade options, including a dual-frequency 5\/7-slot blade\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLock-in detection of optical signals\u003c\/li\u003e\n\u003cli\u003eModulating light for PbS, InSb and MCT infrared detectors\u003c\/li\u003e\n\u003cli\u003eMonochromator-based spectral measurements\u003c\/li\u003e\n\u003cli\u003ePhosphorescence measurements with photon counters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eModel Overview\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable style=\"border-collapse:collapse;width:100%;font-size:13px\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #d0d7e2;padding:4px 6px;background:#f2f5f9;text-align:left\"\u003eBlade\u003c\/th\u003e\n\u003cth style=\"border:1px solid #d0d7e2;padding:4px 6px;background:#f2f5f9;text-align:left\"\u003eSlots\u003c\/th\u003e\n\u003cth style=\"border:1px solid #d0d7e2;padding:4px 6px;background:#f2f5f9;text-align:left\"\u003eFrequency Range\u003c\/th\u003e\n\u003cth style=\"border:1px solid #d0d7e2;padding:4px 6px;background:#f2f5f9;text-align:left\"\u003eStandard\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eDCS540-01\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e2\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e1–99 Hz\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eDCS540-02\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e10\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e20 Hz–1 kHz\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eDCS540-03\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e15\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e30 Hz–1.5 kHz\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eDCS540-04\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e30\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e60 Hz–3 kHz\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eDCS540-05\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e60\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e120 Hz–5 kHz\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eDCS540-06\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eInner 5 \/ outer 7\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eInner 10–500 Hz \/ outer 14–700 Hz\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/dcs500pa-digital-lock-in-amplifier\"\u003eDCS500PA\u003c\/a\u003e — Digital Lock-in Amplifier\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all: \u003ca href=\"\/collections\/lbtek-light-analysis-lock-in-amplifiers\"\u003eLock-In Amplifiers\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eModels: DCS540, DCS540-01, DCS540-02, DCS540-03, DCS540-04, DCS540-05, DCS540-06\u003c\/strong\u003e · Contact WaveQuanta for a quote, configuration advice and lead time.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":68106328015002,"sku":"DCS540","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/wq-dcs540-optical-chopper-system-1.jpg?v=1794127862","url":"https:\/\/waveqvanta.com\/products\/dcs540-optical-chopper-system","provider":"WaveQuanta","version":"1.0","type":"link"}