App096 en--synchronized-lifting-system--wire
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The document describes a precision synchronized lifting system that uses draw-wire displacement sensors to measure the travel displacement of each hydraulic cylinder and synchronize their movement. The sensors provide accurate measurements to a PLC controller proportional to the cylinder displacement. This enables heavy loads to be precisely raised and lowered or large components to be fed forward in a controlled manner. The draw-wire sensors are well-suited for this application as they are compact, easy to mount, and provide high accuracy measurements for synchronized control of the lifting system.
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The document discusses the use of non-contact eddy current displacement sensors from Micro-Epsilon to measure flatness in metal rolling mills. Flatness refers to the evenness of a metal sheet's surface. Conventional contact sensors can damage the sheet surface or require downtime for maintenance. The discussed non-contact system uses sensors to detect tiny vibrations in the sheet induced by fans and calculate tensile stress across the width without contact. This increases quality and availability by eliminating sensor wear and damage to the precision sheet surface.
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This document describes inductive displacement and position sensors that can be used inside hydraulic cylinders and gas pressure springs to monitor and control movement. The sensors use eddy current technology with an aluminum target to provide linear displacement measurement over a range of 20-200mm with high accuracy even in temperatures from -40 to 150°C. They can be customized for integration directly into cylinders and springs used in applications like vehicle tailgates and washing machines to provide compact, low-cost sensing solutions.
Sensors
Sensors are the first element in a measuring system that takes information about a variable being measured and transforms it into a suitable form. Sensors directly measure a physical quantity and transducers convert one form of energy into another. Sensors are essential in robotics for safety monitoring, work cell control, quality inspection, and collecting data. Common sensors used in robotics include position sensors like potentiometers and encoders, proximity sensors, force/torque sensors, and range finders. Temperature can be measured by resistive sensors like thermistors or thermocouples that relate a change in resistance or voltage to a change in temperature.
Field transmitters
1) The document discusses field transmitters, providing information on their introduction, classification, operation, installation guidelines, and specifications.
2) Transmitters are used to transmit sensor signals over long distances in a standardized format and include features like HART communication.
3) The document covers transmitter components, calibration procedures, and specifications for factors like range, output, power supply, and temperature limits.
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App164 en monitoring-thermal-expansion-pipelines-power-stations
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App096 en--synchronized-lifting-system--wire
- 1. A096_e Draw-wire displacement sensors wireSENSOR Precision synchronized lifting system Synchronized lifting systems enable the raising and The output signal from the displacement sensors lowering of heavy loads controlled for distance and which is proportional to the displacement (resistance force or the controlled forward feed of large value, voltage, current or increment) is fed into a PLC components. To achieve this, eight or more cylinders which controls the synchronism of the cylinders. are connected to a central high pressure hydraulic On the synchronized lifting system, the system (700 bar). The travel displacement of each measurements are displayed via a PC and the individual cylinder must be measured as the actual parameters for the lifting/lowering and the value for the synchronized movement and supplied permissible tolerances and limits for the travel to the closed/open loop controller. displacement adjusted. The displacements Draw-wire displacement sensors of the wireSENSOR (positions) can also be output via digital panel- Series P60 are employed for this task. Due to their mounted displays (accessories). compact shape, they are easy to fit even under tight spatial conditions. Complicated alignment is not System setup necessary. The measuring wire is simply attached to 4 x WDS-500-P60-SR-U the load or component with a hook. 4 x DD800
- 2. Application Reasons for the system selection - Draw-wire sensors are easy to mount without any particular effort. - The space required is small. - The sensor length is proportional to the momentary measurement displacement (actual value). - High accuracy for an economical sensor price. - Flexible sensor range (measurement ranges, models, output signals) for the most varied requirements. Technical details - Measuring range: 500 mm (100 and 1000 mm) - Accuracy: ± 1 mm - Resolution: 0.1 mm - Bandwidth: 50 Hz Ambient conditions - Temperature: 10 - 40 °C target potentiometer displacement hydraulic cylinder draw wire displacement wire sensor MICRO-EPSILON A member of micro-epsilon group. Koenigbacher Str. 15 Tel.: 0 85 42/1 68-0 info@micro-epsilon.com Certified DIN EN ISO 9001 : 2000 94496 Ortenburg / Germany Fax: 0 85 42/1 68 90 www.micro-epsilon.com Modifications reserved Y9781096