Linear position sensor aids ATM design
Pennsauken, NJ - Macro Sensors PR 750 Series of 3/4 inch (19 mm) diameter AC-operated LVDTs are serving as measurement feedback devices in the paper bill detector of automated teller machines (ATM) to ensure proper currency dispensing.
Sensor used to monitor bill output in ATM's
In an ATM, a Macro Sensors’ PR 750 Series of Linear Position Sensor is used to measure the separation of a pair of rollers, whereby bills passing between the rollers displace the LVDT core. As the bills pass between the rollers, the LVDT output changes according to their thickness. As a typical bill measures 0.0003” (0.0075mm) thick, the LVDT will detect any derivation should two or more bills get stuck together.
As the ATM can be used hundreds of times during the course of a day, the repeatability and reliability of the linear position sensor are of key importance. Since there is no contact between the LVDT core and coil of the PR Series, there is no friction to cause inaccuracy or part of the LVDT to wear out during the service life of the ATM. To account for any dirt accumulation on the rollers, a sample readout is made for one complete revolution. Any zero-offset value is stored and, then, compared against the LVDT output as the customer’s currency is measured. This eliminates the risk of passing an unexpected number of bills, while at the same time compensates for any variation of the roller surfaces.
Digital temperature sensor line
August 24, 2009 by admin
Filed under Featured, Temperature
Franklin Lakes, NJ — Digital electronics and precision engineering contribute to the small size of the latest addition to Process Sensor Corp’s IR thermometer line.
Process Sensor DS-40N Temperature Sensor
The DS-40N and DG-40N series of stainless steel pyrometers are 124.5mm long overall by M40×1.5 threaded diameter, operate in a current loop powered mode to produce a linear 4 to 20mA output over selected temperature ranges from an overall span of 250 to 2500°C in two models.
In a 4 wire mode, the sensor also offers green LED, illuminating the exact target size, or laser aiming.
Depending on the model, either DS-40N or DG-40N, and temperature range, selected optics provide small target, close focus e.g. 1.2mm diameter at 210mm distance, or extended focus out to 4m with a 20mm diameter target.
A USB connection gives access to PC adjustments of such parameters as emissivity, response time, temperature sub-range and peak picker, with supplied software.
These non-contact sensor will operate in ambient temperatures up to 70°C without cooling. Adding the optional cooling and lens-purging jacket can extend ambient temperatures higher to 200°C .
The Model DS-40N has a spectral response of 0.8 to 1.1µm, and the DG-40N 1.5µm to 1.8µm, for minimum vulnerability to variable target emissivity, and to optimize the effective emissivity of low radiance targets.
The temperature ranges, optics, rugged construction and signal processing capability will appeal to users in the Steel, Ceramics and Glass Industries, Cement and Refractory manufacture, Induction Heating and Sintering operations.
Process Sensor “PSC Spot Software” supports sensor set-up, multi-tasking, graphic display of temperature trends, and data logging, and in general allows the user to customize the sensor to the application.
IBM Intellegence in sensor data
August 19, 2009 by admin
Filed under Industry News
IBM has introduced software that extracts data from sensor devices found in supply chains and other applications, and then sends the information for processing in business systems.
The WebSphere Sensor Events software can draw data from readers of radio-frequency identification tags on items moving between suppliers, manufacturers and distribution centers. The tags typically contain tracking and authentication data.
In addition, the WebSphere software can be used with s
enors found in other applications, such as monitoring and managing water flow rates, highway traffic, seismic activity, air quality and the flow of energy across power grids.
In capturing data, the IBM technology automates a reaction by a business system based on a set of rules or events established by the customer. “The software is unique in that it spans the entire spectrum of clients’ solution requirements, from capturing information from sensing devices to connecting with systems for analytics, business process management and managing information technology and physical assets,” IBM said in a statement.
WebSphere Sensor Events includes business event processing technology obtained by IBM in the 2008 acquisition of AptSoft. The technology has been integrated with business process management and events management capabilities from WebSphere and Tivoli software.
Data extracted from sensors can be processed through IBM’s Smart Analytics System, which is the company’s combined hardware and software for an analytics-ready data warehouse geared toward business-problem-specific applications. In addition,WebSphere Sensor Events can be used with IBM’s Cognos business intelligence software.
Customers of IBM’s latest product include Volkswagen, which is using the technology in accessing information on the exact location of the shipping containers used to transport parts from suppliers to the manufacturing floor, IBM said. Other customers includeNortura , Norway’s largest meat and egg producer. The company is using the IBM software to track meat from farm to processing plants, and then to distribution centers and stores.
All Sensors Corporation
Miniature Amplified Low Pressure Sensor
The Miniature Amplified Low Pressure Sensor is available in a small package to accommodate tight mechanical constraints. Available pressure ranges are 1-INCH H2O to 30 INCHES H2O full scale. Ideal applications are Medical Instrumentation,
Environmental Instrumentation, and HVAC Control Systems.
ASCX Series Compatible Pressure Sensor
The ASCX Series Compatible Pressure Sensor is a drop-in replacement to the occasionally produced Honeywell/Sensym ASCX Pressure Sensor. The availability of this pressure sensor affords customers a second source when specifying a manufacturer. The pressure ports, mounting holes, and pin geometry are mechanically compatible to the Honeywell/Sensym product. Improvements in packaging include innovative design to reduce package induced parasitic stress and strain. Ideal applications are Medical Instrumentation, Environmental Instrumentation, HVAC Control Systems, and Pneumatic Controls.
Amplified Very Low Pressure
The Amplified Very Low Pressure sensor is available in ¼” and ½” H2O Full Scale pressure ranges. This addition to the All Sensors’ low pressure family is known as one of the lowest, accurate sensors available on the market today. The sensor has a
ratiometric 4V output that is temperature compensated. Ideal applications are Medical Breathing and HVAC Control Systems.
Surface Mount Pressure Sensor
The Surface Mount Pressure Sensor from All Sensors is available in a variety of pressure ranges; 10 INCH H2O, 5 PSI, 15 PSI, 30 PSI, and 100 PSI. Most pressure ranges are available as gage or absolute devices. The Surface Mount is available with a ported and non-ported lid. The footprint measures 0.3” x 0.3”. The
output is ratiometric to the supply voltage and proportional to the applied pressure. This product is available as demand for surface mount pressure sensors is increasing in the market place. Ideal applications are Medical Instrumentation and Industrial Instrumentation.
All Sensors
All Sensors Corporation manufactures and sells pressure sensors for use in medical, military, industrial, and HVAC applications with a focus on low-pressure applications for flow measurement and control. Pressure sensors are provided in various package sizes with electrical outputs of either analog or digital. The sensors are provided with surface mount option in small size for measurement of pressures as low as ¼ inch water full scale.
All Sensors has a senior management and engineering team with 30+ years of pressure sensor experience. Custom board level, value added solutions are also available by request. When accuracy, reliability, and quality are crucial, trust the experts at All Sensors with all your pressure sensor needs. The company is located in Morgan Hill, CA. More information is available at www.allsensors.com.
DC stainless inductive sensor
Minneapolis, MN — Turck announces its complete line of 2 and 3-wire DC ArmorGuard™+ stainless steel front face inductive sensors. The line includes 8, 12, 18 and 30 mm barrel diameters with 1.5 to 10 mm achievable sensing distances.
The sensors feature one-piece construction and IP 68 and IP 68K ratings, making them particularly suitable for food and beverage industry applications requiring frequent washdowns. Select sensors are available with Turck’s proprietary WeldGuard™ protective sensing face material, which resists weld slag build-up and abrasion often found in robotic welding applications, including those in the automotive industry.
The sensors come equipped with an M12 quick disconnect connection or with potted-in 2 m cable for ease of installation on the plant floor.
Turck
www.turck.us
