eddy current sensors for displacement, distance and position non-contact eddy current sensors or inductive measurement systems also kown as oszillation sensors, flatness sensor, position sensor, dislocation sensor, displacement sensor, distance sensor, small miniature sensors for measurement in motors, heavy industry, heat resistant, stable, robust, industry sensor, measurement system for motor optimisation, top dead centre of the piston, dislocation needle lift, fuel injection, spindle movement, thermal drift, axial movement of crankshaft, speed sensor for turbo chargers, gap, measurement system for elongation, also for customer-specific oem sensors, automotive engineering test and test-rigs, automotive sensors eddy current and inductive measurement system and sensors with micrometer resolution for linear measurement and displacement, distance and position
02 the eddyncdt 3010 ( on- ontacting isplacement ransducers) is a non-contacting displacement measuring system operating on the eddy current principle. it is used for measuring targets made of electrically conductive materials which may be either ferromagnetic or non-ferromagnetic. a high-frequency alternating current flows through a coil cast in the sensor housing. the electromagnetic coil field induces eddy currents in the conductive target which alters the ac resistance of the coil. this change in impedance produces a linear electrical signal proportional to the distance of the target from the sensor. temperature-dependent measuring errors are reduced to a minimum by a unique electronic compensation method. the temperature operating range of the 3010 sensors ranges from -50 c up to 150 c. in the case of fluctuating ambient temperatures a stable output signal is very important for reliable measurements. due to a patented temperature compensation method the eddyncdt series 3010 offers a unique thermal stability, which no other system can offer. nc d t temperature compensation typical applications 1 - vibration, amplitude, clearance, run-out 2 - displacement, distance, position, elongation 3 - deflection, deformation, waviness, tilt 4 - dimensions, measuring tolerances, sorting, part recognition 5 - stroke, deformation, axial shaft oscillation 6 - bearing oscillations, lubricating gap, wear, displacement advantages ? wear and maintenance free ? excellent linearity <0.25 % fso ? active temperature compensation (<150 ppm/f) ? flexible field calibration ? multi-channel applications by synchronization eddyncdt 3010 non-contact displacement measuring systems 4 3 t he eddyncdt 3010 is designed for industrial use in production plants, for machine control and for measuring and testing during in-process quality assurance. illustrated are examples showing only a small selection of the numerous possibilities. 1 2 5 6 10 10 10 20 20 20 30 30 30 40 40 40 50 50 50 0 0 0 2 2 2 4 4 4 6 6 6 8 8 8 10 10 10 65 65 65 c c c temperature error (% fso) temperature error (% fso) temperature error (% fso) common inductive sensor with ferrite core best practice: ncdt eddy 3010 with temperature compensation common eddy current sensor without temperature compensation temperature error by comparison
system structure the eddyncdt 3010 is a compact, single-channel system consisting of an eddy current sensor, a sensor connecting cable and an amplifier electronics (signal conditioning unit). in multi-channel set-ups, synchronization of separate channels is possible. the system is matched to a reference target material (aluminum or steel aisi 4130) and is adjustable for ferro- or non-ferromagnetic material. synchronization if several channels of series 3010 operate simultaneous close to one another, a mutual interference is possible because of slight differences in the oscillator frequencies. this can be avoided by synchronization. two smc- connectors at the electronic box, one for oscillator signal output (sync out) and one for input (sync in) are standard equipment. the electronics operate independently as long as they are not interconnected. lf connected together, they automatically switch to synchronized operation and are controlled by the first electronics (master). any quantity of units can be synchronized by serial connection. series eddyncdt 3010 is a non-contact displacement measuring system using the eddy current principle: 1) power and output cable (accessory) 2) amplifier electronics 3) sensor cable 4) sensor amplifier electronics sync in out amplifier electronics sync in out sc30 ? synchronization cable (accessory) amplifier electronics sync in out 13 24 03
eddyncdt 3010 technical specifications 04 technical specifications are valid for the aluminum or mild steel aisi 4130 reference materials at 20 c (70 f). the data may deviate for other materials. eddyncdt 3010 systems can be individually linearized and calibr accessory: micrometer calibration device to gain best performance the eddyncdt 3010 supports a field calibration. this is neccessary to get best measuring results in respect to also with the field calibration the measuring range can be extended. linearization and calibration ated . therefore optimum accuracy can always be achieved even with special target materials or critical sensor mounting conditions. the adjustment is carried out at 3 distances (1, 2, 3) which are measured by an independent reference. by simple 3-point adjustment why is field calibration needed? - different target materials - b: target size (measuring spot) - c: target shape - side load - target tilt a: d: e: 1/1 1/1 1/2 1/2 output 3 1 sensor offset range (displacement) 3-point calibration range range signal signal a c b e d a c b e d common sensor without field calibration best practice: eddy 3010 with micro-epsilon field calibration ncdt 0.25 % fso 2 target
05 technical data sensor model u05 u1 s1 s2 u3 u6 u15 dt3010-a dt3010-m mm0.51123615 inch 0.02 0.04 0.04 0.08 0.12 0.25 0.60 mm 0.05 0.1 0.1 0.2 0.3 0.6 1.5 inch 0.002 0.004 0.004 0.008 0.012 0.025 0.060 linearity static repeatability m 0.05 0.1 0.1 0.2 0.3 0.6 1.5 m 0.025 0.05 0.05 0.1 0.15 0.3 0.75 frequency response temperature compensation range signal output power supply electromagnetic compatibility (emc) synchronization protection class fso = full scale output 1) static resolution at midrange sensor model * u05u1s1s2u3u6u15 shielded sensors ? ? unshielded sensors ? ? ? ? ? g 0.6 1.5 5 9 7.5 22 24 ounce 0.02 0.05 0.2 0.3 0.25 0.8 0.85 m3333333 ft 10 10 10 10 10 10 10 m6666666 ft 20 20 20 20 20 20 20 * customized sensors / ranges available temperature range electronics sensor weight (appr.) without cable standard sensor cable length optional sensor cable length electronics ip 54 sensors ip 65 0.05% fso / c ? 0.03% fso / f 0 ... 10 v / 10 ma and 4 ... 20 ma 24 vdc (9 ... 30 v) / 205 ma acc. en 50081-2 ? en 50082-2 with cable sc 30 (accessory) temperature stability sensors ( midrange) non-ferromagnetic target (reference target: alu) ferromagnetic target (reference target: st37) 0.25% fso 25 khz (-3db) 0.005 % fso temperature range sensors and cables temperature stability electronics ( midrange) measuring range * offset distance operation: 10 to 50 c / 50 to 125 f storage: -25 to 75 c / -15 to 170 f operation: -50 to 150 c / -60 to 300 f storage: -50 to 150 c / -60 to 300 f 0.025% fso / c ? 0.015% fso / f 10 to 65 c / 50 to 150 f resolution 1
06 the , are designed with a coil located directly behind the face of a non-metallic cylinder. they provide maximum sensitivity in non-flush installations. unshielded sensors u05, u1, u3 and u6 the has to be mounted on a metal plate with a minimum diameter of 2 times the diameter of the sensor. the are encased in a stainless steel housing with mounting thread right up to its face. this shields the coil from the influence of adjacent metal parts. these sensor models are especially suitable for mounting flush with metal surfaces. unshielded sensor u15 shielded sensors s1, and s2 sensor connecting cable systems equipped with sensors u1 and s1 have a 3 meter (10 ft) integral cable. all other sensors are connected by a 3 meter (10 ft) long coaxial cable with an smc socket on both ends. systems with a 6 meter (20 ft) sensor connecting cable are available optionally. all cables are tuned to the same capacitance and therefore have a tolerance of 15% in length. eddyncdt 3010 sensors and sensor cables sensor unshielded u05 to u6 3 x sensor ? shielded s1 to s2 1.5 x sensor ? sensor unshielded u15 3 x sensor ? sensor ? 8.9 (0.35) ? 8.9 (0.35) ? 4.6 (0.2) ? 4.6 (0.2) ? 3 (0.12) ? 3 (0.12) c3: 3 0.45 m (10 0.15 ft) c6: 6 0.9 m (20 0.3 ft) c3/90: 3 0.45 m (10 0.15 ft) c6/90: 6 0.9 m (20 0.3 ft) 16 (0.6) 16 (0.6) 20 (0.8) 20 (0.8) electronics electronics sensor sensor 15 (0.59) eddyncdt 3010 sensor cables models c3 and c6 for sensors u05, s2, u3, u6, u15 dimensions (mm/inch) connecting cables
07 eddyncdt series 3010 sensor dimensions (mm/inch) s2 nut size 19 mm m12x1 thread 20 (0.80) wrench size 10 mm ? 12 (0.47) u3 nut size 19 mm m12x1 thread 6 (0.24) 20 (0.80) wrench size 10 mm ? 9 ( 0.35) u6 nut size 27 mm m18x1 thread 6 (0.24) 25 (1.0) wrench size 16 mm ? 14 (0.55) ? 37 (1.46) u15 12 (0.47) ? 4.2 (0.16) 3 mounting holes on bolt circle ? 20 (0.8) u1 nut size 8mm m5x0.8 thread ? 8.9 (0.35) ? 4.6 (0.2) ? 3 (0.12) 4 (0.16) 20 (0.8) 10 (0.4) 3 0.45 m (10 1.5 ft) integral cable ? 4 (0.16) 16 (0.63) 20 (0.8) ? 4 (0.16) u1 s1 nut size 13 mm m8x1 thread ? 8.9 (0.35) ? 4.6 (0.2) ? 3 (0.12) 18 (0.7) 12 (0.47) 3 0.45 m/10 0.15 ft integral cable ? 4 (0.16) 16 (0.63) 20 (0.8) ? 8 (0.32) s1 s2 u3 u6 u15 u05 u05 nut size 5.5 mm m3x0.35 thread ? 2 (0.08) 4 (0.16) 13 (0.5) 8 (0.3) 0.25 0.03 m 0.8 0.1 ft ? 2.5 (0.1) ? 2 (0.08)
electronics dimensions / accessories dimensions in mm (inch), not to scale - all inches are rounded pc3/8 power- and output cable ,3m/10ft long, 8-pin synchronization cable 30 c m/1ft long sc30 csp 301 digital signal processing and display unit up to 2 channels mounting holes for m4 or 3/16'' screws 138/5.44 38/1.50 64/2.52 mc2.5 (e) mc2.5 micrometer calibration fixture range 0 to 25 m m/0to1 inch (e), division 2 m / 0.001 inch (e), adjustable offset (zero), for sensors u1 - u15 micrometer calibration fixture range 0 to 2.5 m m/0to0.1 inch, division 1 m for sensors u05, u1, s1 and s2 accessories output/power 150 (5.90) 54 (2.13) sensor sync out sync in info@micro-epsilon.com www.micro-epsilon.com info www.micro-epsilon.co.uk @micro-epsilon.co.uk micro-epsilon info icro-epsilon.us www.micro-epsilon.us @m certified din en iso 9001 : 2000 modifications reserved / y9761168-a030018jkr
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