Series 100
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Linear Velocity Transducers The Series 100 Linear Velocity Transducers provide a simple yet accurate means of measuring linear velocity. They consist of high coercive force permanent magnet cores which induce sizable DC voltage while moving concentrically within shielded coils. The basic design permits operation without external excitation while the generated output voltage varies linearly with core (magnet) velocity. These transducers are ideal for seismology, hydraulic ram speed, drilling rate, and any other application where an instantaneous velocity measurement is required. KEY FEATURES Self-Generating DC Voltage Output Magnetically Shielded High Sensitivity High Frequency Response NOM. OUTPUT SENSITIVITY mV/in/sec (mV/mm/sec) Open Circuit ELECTRICAL IMPEDANCE Coils Connected in Series R Ohms REPLACEMENT MAGNETS Magnet Number * Output voltage is attenuated < 1% of the constant velocity value. Polarity of Output: Voltage at Red lead is positive with respect to that at Black when north pole of magnet is closest to, and traveling towards, lead end of LVT. FREQUENCY RESPONSE* Hz Load = 10R

PERFORMANCE SPECIFICATIONS DIMENSIONAL DIAGRAM Unlike LVDTs, these transducers do not produce a voltage output unless the magnet is moving. This makes it impossible to electrically identify the correct location of the magnet for linear operation. Users must mechanically position the magnet in the LVT at a known reference point. As shown in the Dimensional Drawing, the location of the electrical center of the coils is known, and can be used as a reference point. The midpoint of the linear stroke is found by aligning the center of the magnet, CC, with the electrical center, CA , of the coils....

CORE EXTENSION RODS (SoldSeparately) The recommended core extension rods are made of nonmagnetic stainless steel and are sized to allow the transducers to operate over their full range. Extension rods from models with longer strokes may be used to facilitate installation. Using extension rods shorter than recommended may reduce the LVT's usable measurement range. Both Ends