Displacement Transducer

Displacement Transducers with very high accuracy to 0.01% (1 µm/10 mm), measuring range 10 mm or 30 mm, with essentially infinite resolution (non-incremental) for industrial and scientific users, f.e. creep testing machines.


Displacement transducer 4000 series

The Displacement Measurement Range of product consists of measurement transducer and their supporting electonics. UVB´s Dispalcement transducers provide high linearity, excellent long term stability and resolution of up to 1ppm of full range. The 4000 Serie Linear transducers are compact, robust sensors for use in applications ranging from metrology to heavy industry. Compared with other transducer systems, they are more stable, accurate and sensitive than LVDTs; longer lived, more robust and accurate than potentiometers; more compact and robust than optical laser systems. The production of these transducers 4000 Serie is a direct continuation of production of the UK company ASL (Automatic System Laboratories LTD.) in UVB TECHNIK.


  • Excellent Linearity of the transducers < 0.01 % of range, linearity curves are smooth and reach an optimum near to the center of travel
  • Very High Accuracy < ± 1 µm in full range. All transducers are idividually verified by reference to gauge blocks.
  • Excellent Resolution of up to 0.01 µm (1 ppm of range), non-granular
  • The transducers are tolerant of wide temperature ranges, high magnetic fields and radio-active environments
  • The transducers have superlative stability. The sophisticated construction has no windings, bobbins or magnetic circuit limitations
  • The Robust Construction - The design of the internal elements has been optimised to absorb vibration by mounting them within a separate shock resistant cage (no electronic parts, no glas inside)
  • The transducers can be mounted in any orientation
  • Wide dynamic Range - which is supplemented by overtravel of 2 mm at each extreme
Basic technical data:
Parameter UVB 4010 UVB 4030
Range 0 - 10 mm 0 - 30 mm
Accuracy < ± 0.001 mm < ± 0.003 mm
Lenght ( 0 Voltů / 10 Voltů) 122 mm / 132 mm 158 mm / 188 mm
Diamater 12 mm 12 mm
  • Materials: Standard electrode, body and shaft material is stainless steel (TC<12 ppm/°C)
  • Temperature Range: Up to 100°C, storage up to 125°C
  • Cables and Connectors: Three flexible Teflon insulated screened leads 2 mm diameter of standard lenght 3 metres (10 m max.) terminated with BNC plugs
  • Anvils: Removable steel anvils (M 2.5) with ceramic ball tip, sintered diamond as option
  • Return Springs: 100 ± 20 g at electrical zero and 40 ± 10 g at full electrical range (10 V)
  • Bearing type: Precise linear ball bearing with dust excluding bellows
  • Appropriate Signal Conditioner: Single channel UVB 4291 or dual channel UVB 4292

Signal Conditioners 4291, 4292

The Model 4291 & 4292 (upgraded 3291 & 3292) signal conditioners are use with UVB 4000 high accuracy transducers for Linear displacement measurement. These high performance units bring the advantages of these UVB transducers to a wider range of industrial and scientific users. When combined with UVB Transducers these units have great stability, sensitivity and resolution. These systems are robust, linear and high repeatable; have essentially infinite resolution; low temperature coefficient. The 4291 is the highest performance single channel device, 4292 is for dual channel operation. The voltage outputs for dual channel are A & B, (A+B)/2 or (A-B)/2 as option.

Basic technical data:
Parametr Single channel UVB 4291 Dual channel UVB 4292
Linearity < ± 0.001% < ± 0.001%
Outputs Voltage A : 0 - 10 V DC A, B, (A+B)/2: 0 - 10 V DC
(A-B)/2: ± 5V DC
Power Supply 18 - 36 V DC or ± 15 V DC 50 mA 18 - 36 V DC or ± 15 V DC 100 mA
Bandwidth 0 dB at 10 Hz; -1 dB at 130 Hz; - 3 dB at150 Hz =
Output noise 15 µV (Hz)1/2; 150 µV at 100 Hz =
Temperature Coefficient of zero 6 ppm/°C typical; 20 ppm/°C max. =
Temperature Coefficient of Slope 7 ppm/°C typical; 20 ppm/°C max. =
  • All outputs are short circuit protected
  • Resolution with 3 meters cable: 3 ppm at 10 Hz; 10 ppm at 100 Hz; with 10 meters cable: 5 ppm at 10 Hz; 15 ppm at 100 Hz
  • Working Temperature Range: - 10°C to +50°C, Storage Temperature Range -40°C to +100°C
  • Connection: 3 BNC


  • Accurate and stable linear and angular positioning systems
  • Creep measurement and material testing systems
  • Optical Positioning, Direction Control and Setting
  • Servo Controls, Automatic feedback, Control Systems, Guidance
  • Vibration measurement and Monitoring
  • Strain measurement in high temperature and hazardous environments
  • Load Cells, Viscometry, Pressure
  • Inspection, Callibration, Standards Comparators
  • Robotics, Automation, Machine tools
  • Seismographs, Earth Tremor, Medical Tremor