Linear Displacement Transducer (LHS-X-XX)

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  • The Linear Non contact hall’s effect Displacement transducer is used to detect the displacement of system which correspondence to the Linear motion of the shaft of the sensor.
  • The Output signal correspondence to 0 to maximum stroke length with standard stroke length as 5mm,10mm, 20mm, 25mm and 30mm. Customization in the stroke length is possible.
  • Since the Product is based on Contactless Hall's effect Technology it has very long life.
  • Linear Hall effect transducer is a economical product with highly good accuracy and resolution of 12bit over a full range.

VARIANTS


  • 12 bit resolution 5V input and 0.5 to 4.5Vdc Analog Ratio matric Output.
  • 12 bit resolution 24V input and 0 to 10Vdc / 4-20mA Analog Ratio matric Output.
  • 12 bit resolution +/- 15Vdc input and +/- 5Vdc output.
  • 12 bit resolution PWM Output.
  • Hollow shaft, Shaft on both sides and Threaded shaft to have variable shaft tops available.
  • Metal housing of 18 X18 alluminum housing version available.

BENEFITS


  • Non Contact Linear Position Sensor based on Hall Effect Tenology.
  • Accurate Linearity upto 1% F.S. or 0.5% F.S (on request)
  • Extremely Long Life.
  • Extremely Compact in Size.
  • Short Circuit, Overvoltage and Reverse polarity protected.


Mounting

For best performance of LHS-X-XX below points needs to be taken into consideration.
1) The Centering diameter of 8.1mm need to be perpendicular to the linear motion.
2) The PCD (pitch Circle Diameter to mount the sensor should be 33.5mm with a hole of 5mm dia.

Magnetic Cross Talk

If two LHS units are to be installed closer than 2 inch (measured between the center of both shaft), a magnetic shield, such as a small steel plate should be installed in between to prevent one encoder from caus ing smal l changes in reported pos ition through magneti c field c ros s -tal k .

Material

Component Material
Housing Glass Filled Nylon
Shaft Stainless

Environment

Parameter Value
Operating Temperature -40 to 75 deg (standard) -40 to 140 deg ( on request)
Storage Temperature -40 to 75 degC

Ordering Information

MECHANICAL

Parameters Range
Starting Torque
Maximul Radial Load 1Kg.
Maximum Shaft Speed 100 Shaft Stroke / min
Bearing Life cycles 200 X 10^6 @rated radial Load
Weight of sensor
Shaft Dia 5mm

Parameter Results
Supply Voltage (Vsupply) 5Vdc(+/- 10%) // 6 to 35Vdc
Supply Current 20mA // 50mA
Response time 50mS
Resolution 12bit @ full stroke
Load Resistance Minimum 10k ohms (preferred >100k ohms)
Output (Voutput) 10% to 90% Vsupply (Ratiomatric) @ 5V supply 0.5 to 4.5Vdc @ 6 to 35Vdc supply.
Linearity 1% Independent Linearity ( Available 0.5% on request)

  • Signal Converter cards are available for 0 to 10Vdc, 4 to 20mA or any other digital communication protocol based on requirement.
Parameter Results
Supply Voltage (Vsupply) 5Vdc (+/- 10%) // 6 to 35Vdc
Supply Current 20mA // 35mA
Frequency 200Hz, 500Hz, 1K Hz or 2 Khz based on requirement
Resolution 12bit
Output (Voutput) 10% to 90% duty Cycle
Linearity 1% Independent Linearity ( Available 0.5% on request)

Redundant Analog Output

The Graph is just for indicative purpose. Offset between Output 1 and Output 2 can be change or made

Parameter Results
Supply Voltage (Vsupply) 5Vdc
Supply Current 50mA
Electrical Angle Default 359.92 deg. (Customization possible)
Response Time 1kHz
Resolution 12bit
Output (Voutput) 0 to 5Vdc ( Redundant Output) (ideally 3% to 97% Vinput)
Load Resistance Minimum 10K Ohms
Linearity 1% Independent Linearity ( Available 0.5% on request)

Incremental Output

Parameter Results
Supply Voltage (Vsupply) 5Vdc / 3.3Vdc
Supply Current 20mA
Incremental Output
Electrical Speed 10000RPM Max.
PPR (Pulse Per Revolution)(A&B) 25,50,100,200,256,300,400,500,512,1000,1024 A & B Pulse Lag each other by 90deg.(TTL)
Output (Voutput) 0 to 5Vdc ( Redundant Output) (ideally 3% to 97% Vinput)
Index pulse Z 1 pulse per RPM (TTL)

Low Speed Quadrature Output


Parameter Results
Supply Voltage (Vsupply) 5Vdc / 3.3Vdc
Supply Current 20mA
Incremental Output
Electrical Speed 400RPM Max.
PPR (Pulse Per Revolution)(A&B) 8,16,32,64,128,256,512,1024,2048 A & B Pulse Lag each other by 90deg.(TTL)
Output (Voutput) 0 to 5Vdc ( Redundant Output) (ideally 3% to 97% Vinput)
Index pulse Z 1 pulse per RPM (TTL)

Serial Peripheral Interface Sensor

The RHSS12-XSPI is a Absolute encoder which acts as a slave and communicate with master micro controller as per the standard Protocol of SPI.
As per standard protocol of SPI RHSS12-XSPI communicate with master protocol when the MOSI pin is active high or 3FFF hex data is sent on the bus and the CS pin need to toggle from low to high for only one clock pulse.
RHSS12-XSPI communicate in 16 Bit of Transmission. After each cycle of communication it is compulsory to toggle CS pin from high to low.
RHSS12-XSPI has a provision of Dual Output first SPI communication and PWM mode of communication 14 Bit and 12 Bit of Resolution respectively.
Number of sensors can be connected in daisy chain mode of 4 wire or (n+3 wire connection). please contact Mr. Pavan Kinariwala(pavankinariwala@gmail.com) for more information on the same.
RHSS12-XSPI will communicate the angle information in below pattern.

Parameter Results
Input Voltage (Vinp) 5Vdc / 3.3Vdc
Maximum clock Frequency 50k Hz.
Digital pin Input / output level including address pins.
VDD- 5Vdc (Vinp 5Vdc)
VDD- 3.3Vdc (Vinp -- 3.3Vdc)
1 -- VDD (5V or 3.3V) -0.7V
0 -- GND +0.4V
PWM Frequency 1 Khz.

Two Wire Communication sensor

The RHSS12-XSPI is a Absolute encoder which acts as a slave and communicate with master micro controller as per the standard Protocol of SPI.
As per standard protocol of SPI RHSS12-XSPI communicate with master protocol when the MOSI pin is active high or 3FFF hex data is sent on the bus and the CS pin need to toggle from low to high for only one clock pulse.
RHSS12-XSPI communicate in 16 Bit of Transmission. After each cycle of communication it is compulsory to toggle CS pin from high to low.
RHSS12-XSPI has a provision of Dual Output first SPI communication and PWM mode of communication 14 Bit and 12 Bit of Resolution respectively.
Number of sensors can be connected in daisy chain mode of 4 wire or (n+3 wire connection). please contact Mr. Pavan Kinariwala(pavankinariwala@gmail.com) for more information on the same.
RHSS12-XSPI will communicate the angle information in below pattern.

Parameter Results
Input Voltage (Vinp) 5Vdc / 3.3Vdc
Maximum clock Frequency 10k Hz.
Digital pin Input / output level including address pins.
VDD- 5Vdc (Vinp --6 to 35Vdc or Vdc)
VDD- 3.3Vdc (Vinp -- 3.3Vdc)
1 -- VDD (5V or 3.3V) -0.7V
0 -- GND +0.4V
PWM Frequency 1 Khz.

Sensor with connector

Threads on shaft.


Linear sensor of variable stroke length with spring return.(Sensors without spring/ Free fall version available)