Sensors & Transducers


Cable extension transducer

July 2001 Sensors & Transducers

ATI Systems offers Celesco's complete family of industrial-grade cable-extension transducers. These transducers can be installed in minutes, fitted into precarious or tight areas, and they do not require perfectly parallel alignment. They offer flexibility, a small size-to-measurement ratio, and their makers say they cost less than rod or wand-type measurement devices. Most models are available for immediate shipment.

The benefits of Celesco industrial-grade cable-extension transducers

* Easy to install:

- Bolt transducer housing to fixed surface.

- Attach measuring cable to moving object.

- Make electrical connection.

* Transducer can be mounted remotely from measurement location.

* Cable can be routed over pulleys or through conduit.

* Short height, long measurement range.

* Perfect alignment not required.

* Quick delivery on most products.

Celesco transducers are available in a wide variety of configurations, both mechanically and electrically, to fit specific application requirements.

Measuring the movement and displacement of objects is easy with cable-extension position transducers. All that is needed is to mount the transducer's body to a fixed surface and attach the stainless steel cable to the movable object. As the object moves, the transducer produces an electrical signal proportional to the cable's linear extension (up to 44 m) or velocity for display, recording or feedback to a controller.

How it works

Inside the transducer's housing, a stainless steel cable is wound on a precisely machined constant diameter cylindrical spool that turns as the cable reels and unreels. To maintain cable tension, a spring is coupled to the spool. The spool is coupled to the shaft of a rotational sensor (an encoder or potentiometer). As the transducer's cable extends along with the movable object, it causes the spool and sensor shafts to rotate. The rotating shaft creates an electrical signal proportional to the cable's linear extension or velocity. The signal is in pulses per metre of cable displacement for an encoder and volts per metre of cable displacement for a potentiometer.

Electrical outputs are potentiometric voltage divider, 4-20 mA, 0-10 V and encoder pulses. The enclosures meet NEMA 4, IP65 standards, and can be supplied to meet NEMA 4X, IP67. The transducers are available in either powder-coated aluminium or bar stainless steel. The standard cable supplied is 0,92 mm diameter stainless steel stranded rope. Other diameters and materials are available. Electrical connection: either l6-pin sealed connector or 10' moulded waterproof cable.

Because the PT8600 and PT9600 modules mate with virtually any encoder, it is easy and cost-effective to meet the application's requirements. The client specifies the requirement (resolution, voltage or controller requirements). ATI's systems will mate the specific encoder needed (such as BEI, Hecon, Dynapar) with the right PT8000 or PT9000 module and calibrate the module to fit the encoder. The client then mounts the transducer's body to a fixed surface and attaches its stainless steel cable to the moving object. As it moves the cable extends and the encoder shaft spins - providing hundreds of pulses per inch.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Distance sensor for confined spaces
ifm - South Africa Sensors & Transducers
The O6D100 from ifm has been designed as a powerful all-rounder for typical applications in object detection, distance measurement and positioning.

Read more...
Optimise sludge treatment and reduce operational costs
Endress+Hauser South Africa Sensors & Transducers
Endress+Hauser’s inline measuring devices, the Proline Teqwave MW 300 and the Proline Teqwave MW 500, determine the total solids content of wastewater directly through microwave transmission.

Read more...
Inclination sensors for motion control
ifm - South Africa Sensors & Transducers Motion Control & Drives
The JBC dynamic inclination sensor from ifm offers accurate angle measurement in the most demanding conditions, filtering out motion disturbances such as vibrations, shocks and vehicle dynamics to deliver reliable inclination values via IO-Link or programmable switch outputs.

Read more...
Fully integrated standalone thunderstorm warning system
Senseca Sensors & Transducers Analytical Instrumentation & Environmental Monitoring
Senseca South Africa has introduced its BTD-1 fully integrated, standalone thunderstorm warning system, which detects lightning by monitoring the background quasi-electrostatic field. The system can generate alerts before the first lightning strike, with a detection raterange of up to 83 km.

Read more...
Technology and education are critical to advancing safety in the mining sector
Sensors & Transducers
As mining operations across Africa continue to evolve in scale, complexity and automation, the role of advanced safety technologies has become increasingly important in protecting people, equipment and productivity.

Read more...
Image processing cameras
Vepac Electronics Sensors & Transducers
The intelligent camera series from Vepac is an integrated camera module consisting of a camera and high speed processor. It offers a high-performance image sensing function at the edge device by embedding standard image processing software or the customer’s developed software.

Read more...
OMRON launches non-contact safety door switch
Omron Electronics Sensors & Transducers
OMRON has unveiled its latest innovation in non-contact safety door switches, designed to enhance workplace safety and streamline machinery operations.

Read more...
Conductivity sensing as a cornerstone of South Africa’s water smart industry
ifm - South Africa Editor's Choice Sensors & Transducers
South Africa’s engineers operate at the intersection of resource constraint and industrial ambition. Few parameters illustrate this balancing act as clearly as water quality. Whether in municipal treatment works, food and beverage plants or mining operations, the ability to measure water quality accurately and continuously has become non-negotiable.

Read more...
Futureproofing pharma, one pixel at a time
Omron Electronics Sensors & Transducers
In pharmaceutical manufacturing, there’s no room for error. Omron’s FH-AI and FHV7-AI vision systems introduce AI-powered inspection that adapts to real-world variability, something conventional rule-based vision systems cannot easily achieve.

Read more...
Long-range laser distance measuring sensor
Vepac Electronics Sensors & Transducers
The MS-100A is a long-range laser distance measuring sensor with a range of 150 to 1000 mm. This sensor excels in applications requiring extended measurement capabilities, such as quality control and logistics.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved