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Background
The RTY Series and RTP Series Hall-effect Rotary Position
Sensors provide non-contact sensing in harsh transportation
and industrial applications at a competitive cost.
• RTYSeries:Theseshaftactivatedproductsareavailable
intwoversions:anintegralshaftwithorwithoutalever.
Thelevermayallowcustomerstoreducethenumberof
mechanical linkages required for their applications, which
may reduce the cost of the overall customer solution.
• RTPSeries:Takesnon-contactsensingtothenextlevelby
separatingthemagnetfromthesensorbody.Theabsence
of the actuator shaft removes the wear and tear on the
bearingscausedbyradialforces.Achoiceofabareora
housedmagnetisavailable.
Theseproductsuseamagneticallybiased,Hall-effect
integrated circuit (IC) to sense rotary movement of the actuator
over a set operating range. Rotation of the actuator changes
themagnet’spositionrelativetotheIC.Theresultingflux
density change is converted to a linear output.
The IC, together with conditioning and protection circuitry, is
sealedinanIP69K-qualifiedruggedpackagefordurabilityin
most harsh environments.
Eight operating ranges from 50° to 360° are tolerant to over-
travel and allow use in most common applications. Low voltage
and high voltage versions cover an input voltage range of 4.5
Vdc to 30 Vdc.
Honeywell’sindustry-leadingcapabilitiesinresearchand
development provide the customer with known quality and
support.
Application Note
RTY Series and RTP Series Hall-effect Rotary Position Sensors
Sensing and Control
Solutions
TRANSPORTATION
Position and Movement Detection: Maybeusedtosense
angular position of pedals, throttles, gear shift, levers, steering,
linkages,andhitchesintrucks,buses,off-roadvehicles,cranes,
and industrial/construction/agricultural vehicles and equipment.
Customer Benefits: Enhances fuel economy, equipment and
engine performance, and safety.
Which product to use? Either the RTP Series or the RTY Series
maybesuitable,dependingoninstallationspecifications.The
RTPSerieswouldbeconducivetoapplicationswithexposure
toharshenvironments.Aninstallationlocationprotectedfrom
environmental conditions could accommodate the RTY Series.
Bus/Truck Suspension/Kneeling Position:Maybeusedto
sense angular travel of the suspension system.
Customer Benefits:Accuratesensingvalidatesthecorrectheight
for the application’s system requirements, potentially aiding
vehicleingress/egress(liability),trailerheightforwarehouse
docking(fasterturnsandliability),andsuspensionperformance
monitoring (diagnostic check). The IP69K rating and EMC testing
meet customer requirements. The infinite life cycle helps reduce
warranty concerns.
Which product to use? The RTP Series’ two piece design
eliminatesbearingwearandtearcausedbydebris,
misalignment, or contamination.
Tilt/Trim Position: Maybeusedtosensethepositionofthe
boatenginetilt/trim.
Customer Benefits:Accuratepositionreportinghelpsthe
operatortomaintainpeakperformanceoftheboatandprotects
against propeller damage. The IP69K rating, EMC testing, and
AMPsealconnectorprotectagainstmarineconditions.The
35 M (RTY Series) or infinite (RTP Series) life cycle helps reduce
end user replacement requirements.
Which product to use? Either the RTY Series or the RTP Series
wouldbesuitableasthesensoristypicallyinstalledinan
enclosed, protected environment.
