Automation Parts

HSTA And HSTAR Sensors Resist Heat And Vibration Macro Sensors' HSTA and HSTAR LVDT-based linear-position sensors offer the environmental resistance and short-stroke sensor body length for cylinder applications where these are critical. While linear-position sensors were once considered too long for hydraulic applications, the development of new winding techniques, such as computerised layer winding and improved microprocessing, has considerably reduced the length of the linear-position sensor body compared with its measurable stroke length. In fact, for short-stroke actuators and cylinders (less than 6in), Macro Sensors' linear-position sensors can be much shorter than a magnetostrictive sensor. These linear-position sensors are hermetically sealed and AC-operated. They measure 3/4in (19mm) diameter and can survive in temperatures up to 200C and withstand high levels of shock and vibration. Coil windings are sealed against hostile environments to IEC standard IP-68. They a...

Three-Phase Stepper Motor Offers Low Vibration Astrosyn International has launched the MY4304-01 three-phase stepper motor, which is said to be suitable for the pan-and-tilt control of stage and other entertainment lighting. The company said the three-phase design is capable of exceptionally quiet operation with a low level of vibration, making it ideal for this type of application. A further advantage is said to be its higher precision, with a full step angle of 1.2 deg compared with the more usual 1.8 deg. The high torque, Nema size 24 hybrid motor also features special bearings for high-temperature operation and its modified shaft has a KK2 keyway. The MY4304-01 can be supplied with Astrosyn's P306 three-phase driver, which delivers an output current of 3.0-5.8A per phase from a direct current input of 18-45V. In addition, eight microstepping resolutions can be selected. Other possible applications where the motor's smooth running and low vibration are crucial include ...

Pneumatic Vibration Isolators Launched By Newport Newport has announced the release of the S-2000 Stabilizer series of pneumatic vibration isolators. The offering incorporates Newport's self-centring pendulum design, laminar flow damping system, and precision auto-levelling valves. In addition, the S-2000 design incorporates enhanced levelling indicators, recessed lifting channels and a lower magnetic permeability design. Newport said the S-2000, with a 2000lb load capacity per isolator, is an ideal solution for isolating optical tables, large inspection equipment, heavy machinery, and large area sub-floors. Newport is also making available a standard offering of fully non-magnetic models as well as clean-room compatible versions in the near future. The initial offering of the S-2000 will be available in six heights ranging from 16-28in all equipped with precision re-levelling valves. The S-2000 Stabilizer performance delivers a 1Hz vertical resonant frequency and a vertical ...

Testing the seriously hazardous effects from vehicle seat and floor vibration is now much simpler with Bruel And Kjaer's new SEAT measurement software for its 4447 Human Vibration meter. With this major update the 4447 makes the assessment of health risks to humans - posed by exposure vibration at work - easier to calculate, as it can measures SEAT (Seat Effective Amplitude Transmissibility) factors to determine the ratio between the vibration levels measured on the seat - and on the floor - then display the SEAT factor. This factor ensures the seat is constructed under specific operational conditions and the finished product complies with strict EU regulations for manufacturers, including EU Directive 2002/44/EC. Bruel and Kjaer's 4447 analyser is a portable system developed using input from several groups concerned about the effects of human vibration, so it is ideal for consultants working with measurements of - and risk evaluations caused by - exposure to occupational vi...