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The G-882 is used for detection and mapping of ferrous objects, including anchors, chains, cables, pipelines, ballast stones, shipwreck debris, munitions (UXO), aircraft and engines, and for geological studies. The datasheet lists the transverse gradiometer as an optional configuration of the G-882.\n\nThe G-882 uses a self-oscillating split-beam cesium vapor (non-radioactive) sensor with an operating range of 20,000 to 100,000 nT. Noise is \u003C0.004 nT\u002F√Hz rms (SX export version: \u003C0.02 nT\u002F√Hz rms), the max sample rate is 20 Hz and heading error is \u003C1 nT over an entire 360° spin. The earth's field vector should be at an angle greater than 10° from the sensor's equator and greater than 6° away from the sensor's long axis, with automatic hemisphere switching. Output is RS-232 at 1,200 to 19,200 baud, and power is 24 to 32 VDC, 0.75 A at power-on and 0.5 A thereafter.\n\nEach G-882 sensor fish is 7 cm in diameter and 137 cm long with fin assembly, and weighs 18 kg including sensor, electronics and one main weight; additional collar weights are 6.4 kg each, up to a total of five. The listed tow cable is 12 mm in diameter and 800 m long, weighs 7.7 kg with terminations, has a break strength of 1,630 kg and a bend diameter of 30 cm. The G-882 is O-ring sealed and rated to 4,000 psi (2,730 m), operates from −35 °C to +50 °C and can be stored from −45 °C to +70 °C. An internal CM-221 Mini-counter provides multi-sensor sync and data concatenation for side-by-side systems, and the system interfaces directly to side scan sonars from major manufacturers for tandem tow configurations.\n\nAccording to the datasheet, standard accessories are an operation manual, shipping\u002Fstorage container, ship kit with tools and hardware, power supply, MagLogLite, MagMap and MagPick processing software, depth transducer and altimeter. MagLogLite data logging software records and displays data and position with automatic anomaly detection. Optional items include steel tow cable to 6,000 m with telemetry, a plastic Pelican case, MagLogPro software and collar weights. Typical detection ranges given include 1 to 2 nT at 30 m for an automobile, 1 to 5 nT at 30 m for a 1000 lb bomb and 0.5 to 2 nT at 4 m for a 5-inch screwdriver.",[235,236,237,238,239,240],"Cesium vapor sensor, 20,000–100,000 nT range","Noise \u003C0.004 nT\u002F√Hz rms","Sample rate up to 20 Hz","Heading error \u003C1 nT over 360°","Depth rating 4,000 psi (2,730 m)","Sensor fish 18 kg, 7 cm Ø × 137 cm","Geometrics",{"_type":243,"asset":244},"image",{"_ref":245,"_type":229},"image-914d4de5391e2cfe5683a7b3ee0461ff6128c386-635x746-png","Rent a Geometrics G882 TVG transverse gradiometer based on the G-882 cesium vapor magnetometer: \u003C0.004 nT\u002F√Hz noise, 20 Hz sampling, rated to 2,730 m.","Geometrics G882 TVG Gradiometer","Geometrics G882 TVG transverse gradiometer based on the G-882 cesium vapor marine magnetometer, with \u003C0.004 nT\u002F√Hz rms noise, sampling up to 20 Hz and a 4,000 psi (2,730 m) depth rating.",{"_type":250,"current":251},"slug","geometrics-g882-tvg-transverse-gradiometer","Cesium Vapor Marine Magnetometer Gradiometer",[254,259,263,267,271,275,279,283,287,291,295,299,303,307,311,315,319,323,327,331,335,339,343,347,351,355,358,362,366,370,374,378,382,385,389,393,397,401,405,409,413,417,421],{"_key":255,"_type":256,"label":257,"value":258},"c65010796d0a","specRow","Base magnetometer","Geometrics G-882 marine magnetometer",{"_key":260,"_type":256,"label":261,"value":262},"f5f684a675b5","Gradiometer configuration","Longitudinal or transverse gradiometer listed as optional",{"_key":264,"_type":256,"label":265,"value":266},"fec0f6399638","Operating principle","Self-oscillating split-beam cesium vapor (non-radioactive)",{"_key":268,"_type":256,"label":269,"value":270},"422ace88135f","Operating range","20,000 to 100,000 nT",{"_key":272,"_type":256,"label":273,"value":274},"5e6f6115e02a","Operating zones","Earth's field vector at an angle greater than 10° from the sensor's equator and greater than 6° away from the sensor's long axis; automatic hemisphere switching",{"_key":276,"_type":256,"label":277,"value":278},"d307c3827277","Noise","\u003C0.004 nT\u002F√Hz rms; SX (export) version: \u003C0.02 nT\u002F√Hz rms",{"_key":280,"_type":256,"label":281,"value":282},"2868c45e9183","Max sample rate","20 Hz",{"_key":284,"_type":256,"label":285,"value":286},"83cd80123247","Heading error","\u003C1 nT (over entire 360° spin)",{"_key":288,"_type":256,"label":289,"value":290},"25bf7e693467","Output","RS-232 at 1,200 to 19,200 baud",{"_key":292,"_type":256,"label":293,"value":294},"4b2cc4d02174","Power","24 to 32 VDC, 0.75 A at power-on and 0.5 A thereafter",{"_key":296,"_type":256,"label":297,"value":298},"7f2dbd0d435d","Multi-sensor sync","Internal CM-221 Mini-counter (multi-sensor sync and data concatenation)",{"_key":300,"_type":256,"label":301,"value":302},"59bb1598c213","Sensor fish dimensions","7 cm Ø × 137 cm (with fin assembly)",{"_key":304,"_type":256,"label":305,"value":306},"91a2261f4d1e","Sensor fish weight","18 kg (includes sensor, electronics and 1 main weight)",{"_key":308,"_type":256,"label":309,"value":310},"b0b8ff5ca39a","Collar weights","6.4 kg each; total of 5 capable",{"_key":312,"_type":256,"label":313,"value":314},"2134c3f8c787","Tow cable","12 mm Ø × 800 m; 7.7 kg with terminations",{"_key":316,"_type":256,"label":317,"value":318},"a855babd91bb","Tow cable break strength","1,630 kg",{"_key":320,"_type":256,"label":321,"value":322},"2629cb211639","Tow cable bend diameter","30 cm",{"_key":324,"_type":256,"label":325,"value":326},"3a2116b56327","Housing","Rugged fibre-wound fibreglass housing",{"_key":328,"_type":256,"label":329,"value":330},"ccbd58ff5edf","Operating temperature","−35 °C to +50 °C",{"_key":332,"_type":256,"label":333,"value":334},"ceeaadf6152e","Storage temperature","−45 °C to +70 °C",{"_key":336,"_type":256,"label":337,"value":338},"1cb9bbaf02c1","Altitude","9,000 m",{"_key":340,"_type":256,"label":341,"value":342},"34ec534dc1c5","Depth rating","4,000 psi (2,730 m)",{"_key":344,"_type":256,"label":345,"value":346},"a6e9f30daa2b","Water tight","O-ring sealed for up to 4,000 psi depth operation",{"_key":348,"_type":256,"label":349,"value":350},"b8179bbab9bc","Standard accessories","Operation manual, shipping\u002Fstorage container, ship kit with tools and hardware, power supply, MagLogLite, MagMap and MagPick processing software, depth transducer, altimeter",{"_key":352,"_type":256,"label":353,"value":354},"ce8b4789b10e","Optional accessories","Steel tow cable to 6,000 m with telemetry, longitudinal or transverse gradiometer, plastic Pelican case, MagLogPro, collar weights",{"_key":356,"_type":256,"label":67,"value":357},"dc494b95283d","MagLogLite data logging (recording and display of data and position, automatic anomaly detection)",{"_key":359,"_type":256,"label":360,"value":361},"89fe71ee560d","Side scan integration","Interfaces to major side scan manufacturers for tandem tow configurations",{"_key":363,"_type":256,"label":364,"value":365},"b7581be8f2a2","Typical detection range: ship, 1000 tons","0.5 to 1 nT at 244 m",{"_key":367,"_type":256,"label":368,"value":369},"9350ff2663ee","Typical detection range: anchor, 20 tons","0.8 to 1.25 nT at 120 m",{"_key":371,"_type":256,"label":372,"value":373},"f234e7cfb571","Typical detection range: automobile","1 to 2 nT at 30 m",{"_key":375,"_type":256,"label":376,"value":377},"2b58c831a2e2","Typical detection range: light aircraft","0.5 to 2 nT at 12 m",{"_key":379,"_type":256,"label":380,"value":381},"1e9945471c5c","Typical detection range: pipeline (12 inch)","1 to 2 nT at 60 m",{"_key":383,"_type":256,"label":384,"value":373},"e0ee50e81a2e","Typical detection range: pipeline (6 inch)",{"_key":386,"_type":256,"label":387,"value":388},"6ad8d5942881","Typical detection range: iron, 100 kg","1 to 2 nT at 15 m",{"_key":390,"_type":256,"label":391,"value":392},"8bef1478d284","Typical detection range: iron, 100 lb","0.5 to 1 nT at 9 m",{"_key":394,"_type":256,"label":395,"value":396},"7afe61f46c9e","Typical detection range: iron, 10 lb","0.5 to 1 nT at 6 m",{"_key":398,"_type":256,"label":399,"value":400},"90a986d12c1f","Typical detection range: iron, 1 lb","0.5 to 1 nT at 3 m",{"_key":402,"_type":256,"label":403,"value":404},"6b564814b586","Typical detection range: screwdriver, 5-inch","0.5 to 2 nT at 4 m",{"_key":406,"_type":256,"label":407,"value":408},"21b82e14d82d","Typical detection range: bomb, 1000 lb","1 to 5 nT at 30 m",{"_key":410,"_type":256,"label":411,"value":412},"348f02c34bb5","Typical detection range: bomb, 500 lb","0.5 to 5 nT at 16 m",{"_key":414,"_type":256,"label":415,"value":416},"26a3861fee61","Typical detection range: grenade","0.5 to 2 nT at 3 m",{"_key":418,"_type":256,"label":419,"value":420},"27a9c5343b7b","Typical detection range: shell, 20 mm","0.5 to 2 nT at 1.8 m",{"_key":422,"_type":256,"label":423,"value":424},"872e8bbe2666","Applications","Detection and mapping of ferrous objects (anchors, chains, cables, pipelines, ballast stones, shipwreck debris, UXO, aircraft, engines); geological studies","Geometrics G882 TVG Transverse Gradiometer"]