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www.us-tech.com
February, 2016
Macro Sensors: Position Sensors for Pneumatic Cylinders
Pennsauken, NJ — Pneumatic de - vices are used in material handling and processing systems to push, pull, lift, and open and close doors. They are often also used to hold and remove materials and position pieces for manufacturing. Compressed air is used to move pneumatic cylinders, and as it enters the base of the cylin- der, the air pushes the piston and forces it to move. Air on the other side of the piston is vented. To ensure proper operation, pneumatic cylinders employ Linear Variable Displacement Transducers (LVDTs) to measure range of motion. A spring-loaded LVDT is typically
installed on the cylinder tip area to make measurements when the cylin- der is fully extended. Macro Sensors offers the BBP
Series of Air Extended, Spring- Loaded LVDT Position Sensors for these types of applications. The sen- sors include a probe that moves out and makes measurements only near the end of its movement, when it is almost completely extended, and retracts to avoid damage. The 9.5mm (0.375in) diameter
pencil-type gauging probes measure the position of a target surface with a high degree of accuracy. Since the probe measurement is made only
near the end of its movement, a short range LVDT can be used for high res- olution. In this configuration, a short-range LVDT linear position sensor can be used to get the highest resolution, as the full range of the cylinder stroke often does not need to be measured. Many users do not require
measuring the total range of the cylinder, and simply need the probe to avoid damage. In these applica- tions, a one or two inch stroke cylin- der can use a short-range spring- loaded LVDT to measure a nominal ±1mm at full probe extension before the probe retracts.
Spring-loaded probes for pneumatic cylinders.
Contact: Macro Sensors, 7300
Route 130 North, Pennsauken, NJ 07828 % 856-662-8000 E-mail:
sales@macrosensors.com Web:
www.macrosensors.com
ULT: New Unit for Ionization, Extraction and Filtration
Loebau, Germany — ULT AG has introduced the Jumbo Elephant, a system for surface cleaning and removal of electrically charged parti- cles. Ionization, compressed air cleaning, extraction and filtration are combined in the system. The active ionization neutral-
izes surface charges, helping to remove interfering charges and high ion concentrations which may have
Surface cleaning and extraction system.
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an impact on the human respiratory system. An integrated compressed air nozzle removes fine particles from wells and indentations. The particles stirred up as a result are safely filtered and exhausted. The unit’s high filtration rate allows nearly particulate-free purified air to be fed back into the working area. The Jumbo Elephant is a small
and portable device, especially designed for manual workstations. In addition to its ergonomics and handling, it makes a small amount of noise — a maximum of 49dB — and its filter units can be changed indi- vidually.
Contact: ULT AG, Am
Gopelteich 1, 02708 Lobau, Germany % +49-3585-4128-0 fax: +49-3585-4128-11 E-mail:
ult@ult.de Web:
www.ult.de
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