产品介绍

The DMI-A1 Series AC LVDT Indicator is an accurate, high performance, programmable single channel AC LVDT indicator that delivers precise measurement for applications using AC LVDT (Linear Variable Differential Transformer) inputs. The 5-digit alphanumeric LED display provides easy-to-follow setup prompts for all LVDT parameters using the intuitive text configuration menus.

Used in conjunction with AC LVDTs, DMI-A1 Series Indicators make up a comprehensive, reliable, measurement system. The combination can be applied to a wide variety of demanding measurement applications, such as in process gaging in automated assembly machinery, differential measurements in thickness gaging, and other comparative measurements. Utilize the unit's optional relays and you have an economical solution when you need control functions for comparative and direct measurements in smaller automated systems.

The DMI-A1 Series AC LVDT Indicator is designed to be upgradeable for expansion of capabilities. You can order this as an indicator only and if you decide later to add an option like RS-232 to utilize the remote utility software package or to add communication to data acquisition software, it can be done at the factory.

The AC LVDT input module of the DMI-A1 Series AC LVDT Indicator is designed to drive and condition the signal from an LVDT transducer. The module contains 2 high-speed micro controllers and a 16-bit A/D converter. One of the micro controllers generates the sine wave for the AC LVDT excitation frequency. These frequencies are produced as multiples of the line frequency (either 50 Hz or 60 Hz that are selectable via the scrolling text menus).

The 16-bit A/D converter has over 130 dB noise rejection at the excitation frequencies and is capable of 40 Hz averaged output on 45 samples. Scrolling text menus provide quick access to a range of configuration modes for easy AC LVDT application setup.