AC Operated, Light Weight RVDT

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Product Code : R30A

Price And Quantity

Minimum Order Quantity
1 Piece
Price Range
40000.00 - 100000.00 INR

Product Specifications

Product Type
Light Weight RVDT
Color
Silver and Black

Output
Analog Sensor
Operating Temperature
-67F to +300 Fahrenheit (oF)

Product Description

The R30A RVDT (Rotary Variable Differential Transformer) is an angular position sensor that incorporates a proprietary non-contact design which dramatically improves long term reliability when compared to other traditional rotary devices such as synchros, resolvers and potentiometers. This unique design eliminates assemblies that degrade over time such as slip rings, rotor windings, contact brushes and wipers, without sacrificing accuracy.

High reliability and performance are achieved through the use of a specially shaped rotor and wound coil that together simulates the linear displacement of a Linear Variable Differential Transformer (LVDT). Rotational movement of the rotor shaft results in a linear change in the amplitude of the output signal, directly proportional to the shaft angle change, while the phase of this output signal indicates the direction of displacement from the null point. Non-contact electromagnetic coupling of the rotor provides infinite resolution thus enabling absolute measurements to a fraction of a degree.

AC operation eliminates the need for integrated signal conditioning components, thereby offering the user an extremely wide operating temperature range of -55^oC to +150^oC. Factory calibrated to operate over a +30 degree range, the R30A offers a non-linearity of less than +0.25% of full range. Extended range operation up to a maximum of +60 degrees is possible with increased non-linearity. Packaged in a small, size 11 servo mount, aluminum housing with flying lead termination, the R30A is ideal for space restrictive applications.

Also see our other angular position sensor models, R36AS (stainless steel housing, MS style connector), RSYN (high output, shock and vibration tolerant), R30D and R60D (bipolar DC operation), and the RVIT-15 Series (single ended DC operation, voltage or current output).

Details :

AC operation
60 degree angular sensing range
Light weight
Non-contact design
Wide operating temperature range
Size 11 servo mount
Anodized aluminum housing

Features :

High accuracy
Infinite resolution
Long term reliability
Wide -55^o to +150^oC operating temp range
Rugged anodized aluminum housing
Shielded ABEC 3 precision bearings

Application :

Valve position
Machine tool equipment
Rotary actuator feedback
Dancer arm position
Process control

Specification :

Parameter	@10kHz Input Frequency (recommended)			@2.5kHz Input Frequency
Angular range, degrees	+30^o	+40^o	+60^o	+30^o	+40^o	+60^o
Non-linearity, % of FR, max.	+0.25%	+0.5%	+2%	+0.25%	+0.5%	+2%
Output at range ends (*)	87mV/	116mV/V	174mV/V	69 mV/V	92 mV/V	138 mV/V
Sensitivity	2.9 mV/V/degree			2.3 mV/V/degree
Temp coefficient of sensitivity	0.02%/^oF [0.036%/^oC], 20 to +160^oF [-7 to +71^oC]			Not specified
Input / Output impedance	370 / 1300			135 / 600
Phase shift	+3^o			+35^o
Input voltage and frequency	3 VRMS @ 2.5 to 10 kHz (10kHz recommended)
Null voltage	0.5% of FSO, maximum

Environmental And Mechanical Specifications :

Operating temperature	-67^oF to +300^oF [-55^oC to 150^oC]
Mechanical angular range	360 degrees (no stops)
Bearings	Shielded ABEC 3 precision
Shaft diameter	3/16 inch [4.76 mm]
Housing material	Aluminum, anodized
Mounting	Size 11 servo mount per BU-ORD
Moment of inertia	0.53 x 10^-6 inch.lb-force.second² [0.61 x 10^-6 Kg-force.cm.second ]
Maximum torque, unbalance	0.004 inch.ounce-force [0.3 gram-force.cm]
Maximum torque, friction	0.015 inch.ounce-force [1.1 gram-force.cm]
Shaft load capability	10 lb [4.5Kg] Axial; 8 lb [3.6 Kg] Radial
Electrical connection	6 lead wires, AWG 28, PTFE insulation, 12 inches [30cm] long
Weight	1.3 oz [36 Grams]