Gearbox role for rotary position sensors
A
Penny and Giles product story
Edited by the Engineeringtalk editorial team
May 2, 2005
Penny + Giles has secured orders for its SRS280 rotary position sensors from sequential gearbox indicator manufacturer Geartronics.
Penny + Giles has secured orders for its SRS280 rotary position sensors from sequential gearbox indicator manufacturer Geartronics.
Designed for high reliability in extreme temperature, high vibration and shock environments, the SRS280 is competitively priced, and as a result Geartronics has been able to produce high quality products and pass on the cost benefits to its customers.
Geartronics was initially attracted to Penny + Giles by the price of the sensors.
Neil Wallace, proprietor of Geartronics says: "There are few rotary position sensor manufacturers who offer such a reliable and accurate sensor at such a reasonable low price at the volumes I require".
"I have been able to reduce costs significantly and pass on those savings to customers, making our products an attractive choice for gearbox manufacturers and end users alike".
Sequential gearbox indicators combine a set of electronics and the SRS280 rotary position sensor fitted to the selector barrel.
The action of the gearstick rotates this barrel to set a position corresponding to the selected gear and the SRS280 measures this position precisely and allows the electronic control unit to calculate and display which gear is selected.
This method of sensing the selected gear offers highly reliable and repeatable results, compared with microswitches to count the number of times the gearstick has been knocked forwards or backwards by the driver.
With sequential transmissions becoming ever more popular in the motorsport arena, the SRS280 is proving to be the sensor of choice for motorsport professionals.
The harsh conditions to which traditional sensors are routinely subjected commonly lead to problems with signal continuity as a result of broken casings, intermittent shaft contact or ingress of dust or fluids.
"We have conducted extensive research in Formula One and other motor racing markets to identify these issues and develop solutions", says Ray New, Managing Director, Penny + Giles Industrial Sensors.
"The SRS280 is based on Penny + Giles' proven hybrid potentiometer track technology, which is widely used in linear position sensing systems all over the world".
"The technology is known for its stability in extreme environments, its virtually infinite resolution and its durability - in excess of 50 million operations".
SRS280 offers a range of innovative features which overcome the shortcomings of competitive products and set a new standard of reliability for the industry.
SRS280 was the first rotary sensor of its kind to offer a range of thirty-five different models with angles from 10 to 350 degrees allowing the user to match the sensitivity of the system to the application, for better data acquisition and closer control.
The sensors are available with dustproof and waterproof casings sealed to IP50 or IP66, and all versions have an integral moulded cable assembly which negates the need for a heat-shrink boot.
Crushproof mounting flanges feature steel inserts which protect the casing from the possibility of damage from mounting bolts.
As a result, SRS280 can be repositioned as many times as necessary, making it a much better investment than traditional designs which often have to be discarded after only one use.
In motorsport applications the rugged rotary position sensors are also ideal for the position monitoring of fuel control systems, suspension and steering.
The sensors are also suitable for use in industrial applications, for example for the position monitoring of powered actuators in flow control valves.
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