Miniature, LVDT Linear Position Sensors

The LD400 series are high output, miniature sensors with precision, acetal bearings that are ideal for applications requiring low ranges and smooth, small actuators.

$616.21

Calibration Options

No Calibration

Required Calibration with Product + $85.00

Enquire

Data Sheet (PDF)

Skip to the end of the images gallery

Skip to the beginning of the images gallery

Description

The LD400 Series miniature dc output LVDT transducers provide a method of measuring displacements up to ±5 mm (±0.20 inch) with very high accuracy and infinite resolution. They have a free-guided armature incorporating Acetal bearings, which provide near frictionless motion to detect the smallest movement the associated instrumentation is capable of identifying. These transducers utilize a precision linear variable differential transformer (LVDT) as the measuring source, together with hybrid ICs which include an oscillator, demodulator, and filter; together, they comprise a self-contained unit that accepts dc input and provides dc output relative to armature position. The unit's high linearity and low mass of moving parts is ideally suited to applications in civil, mechanical, chemical and production engineering.

SPECIFICATIONS

ELECTRICAL
Linearity: 0.3% FS
Excitation: 10 to 24 Vdc regulated
Energizing Current at 10 Vdc:
LD400-1: 10 mA
LD400-25: 10 mA
LD400-5: 13 mA
Response Time:
LD400-1 and LD400-2.5 = 5 ms
LD400-5 = 3 ms
Frequency Response: 50 Hz for -3 dB
Ripple: <1% FS
Thermal Effect:
Zero:
LD400-1: <0.02% FS/°C
LD400-2.5 and LD400-5: <0.01% FC/°C
Sensitivity: <0.025% FC/°C
Compensated Temperature Range:-20 to 80°C (-4 to 176°F)
Operating Temperature Range: -20 to 80°C (-4 to 176°F)
Electrical Connection: 2.9 m (9') shielded, color-coded cable
Sensitivity and Linearity Data: Provided with a transducer output impedance of 2.4 kΩ into a calibration load of 20 kΩ at 20°C (68°F); variations in these parameters will change performance

MECHANICAL
Threaded Core: M2 thread
Core Material: Ni/Fe-Radio Metal 50
Case Material: 400 Series stainless steel

CONNECTIONS
Electrical Connections:
Red: + Excitation
Blue: - Excitation
White: + Signal*
Green: - Signal
Yellow: No connection
* White and red in phase for positive inward displacement.