Flange-mounted LVDT displacement sensors combine a robust flange mount with the high accuracy of linear variable differential transformers. The model and specification should match stroke, mechanical fit, electrical output, and environmental protection. Typical models are defined by measuring range, body diameter, flange size, core type, and cable option. Common ranges include 5, 10, 25, 50, and 100 mm, with linearity from +/-0.25% to +/-0.5% FS. Standard excitation is 1 to 10 VAC or 3 to 5 VDC for integrated electronics. AC models output a proportional AC signal, while DC-DC models provide 0-5 V, 0-10 V, or 4-20 mA. Flange mounting ensures stable axial alignment and easy installation on cylinders, test rigs, and industrial frames. Key specifications include repeatability, resolution, hysteresis, temperature drift, shock and vibration resistance, and IP rating. For harsh areas, choose stainless steel housings, sealed connectors, and IP67 protection. Verify flange dimensions, thread, core clearance, and cable routing before ordering. When selecting a model, confirm rated stroke, null position, phase, lead length, and connector pinout. Calibration reports and custom flange drawings help ensure correct fit and repeatable measurements in OEM equipment. A suitable flange-mounted LVDT delivers reliable, non-contact linear feedback for position control, quality testing, and automation.