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SGR Series Rotary Transducer For Torque, Speed & Power Measurements - External Electronics

Quick Overview

These SGR Series Transducers can be used to monitoring bi-directional rotary or static torque with an external electronics box. An integrated speed sensor enable the direct measurements of transmitted power and RPM. The SGR Series Transducers operate using a four-element strain gauge wheatstone bridge, which connects to a microcontroller to process the bridge output signal and measure the torque applied to the shaft. Using the full bridge helps to diminish errors from any off-axis forces and increases the sensitivity and temperature performance of the strain measurement. Available with ranges 0-1Nm to 0-13,000 Nm. The SGR53x units come with fixed analogue outputs for torque measurements, whilst the SGR54x units also has RS232, CANbus or USB output to interface with TorqView Windows software, which provides a PC real time graphical display and full data logging facility, plus allowing you to make changes to the.analogue outputs.

The SGR Series replaces the previous RWT Series Torque transducers.

View Options

Details

Operating Principles

The SGR series transducers operate using a four-element strain gauge wheatstone bridge, which is connected to a miniature shaft mounted analog to digital converter and microcontroller. The microcontroller conditions and measures the strain gauge bridge output as close to the gauges as possible, eliminating any possible external noise pick up in the gauge wiring.

The shaft mounted electronic module is wirelessly powered by a radio frequency source which drives a stator coil, the output of which is received by a rotor coil on the shaft thus making the system completely contactless. This eliminates the need for slip rings and their associated wear and noise problems.

The shaft microcontroller outputs a digital serial stream that is transferred back from rotor to stator by modulating the impedance of the rotor coil and detecting the impedance changes at the stator coil. A secondary high-performance microcontroller receives the serial stream from the shaft microcontroller, which then performs calibration and temperature compensation before outputting the results digitally via RS232, CAN bus or USB. A 16-bit digital to analog converter also outputs the sensors data as a fully calibrated and compensated analog voltage or current.

SGR Schematic

Key Benefits

Any full scale torque can be specified within the standard range: 1Nm through to 13,000Nm
Large fully functional overrange capabilities of 250% (SGR 541)
Separate digital electronics
Minimal side and end load errors
Low Linearity deviation of ±0.05% FSD
Low Hysteresis error of ±0.05% FSD
Zero variation in torque signal with rotation (Cyclic Variation)
Non-contact signal transmission, no slip rings to wear out.
High digital sample rate of 4,000 samples per second
Adjustable torque data smoothness, low pass filter (SGR541)
Wide Power Supply range 12-32vDC
Lifetime Warranty

TorqSense SGR53x Series transducers offer:

Fixed analogue voltage or current outputs
BIT Self-diagnostics for letting the manufacturer know that the transducer torque or speed ratings have not been exceeded and the transducer's last calibration date
Sensors to monitor shaft temperature for better compensation and accuracy
Simple 'Sensor Status' output pin

The TorqSense SGR541 transducers offers, these additional features:

2 x user selectable voltage or current analog outputs (one for torque and the other for speed, power or peak torque)
Digital outputs such as RS232, CANbus and USB for interfacing with modern instrumentation and laptops
Digital input for configuring transducer via PC
BIT Self-diagnostics for letting users know data is trustworthy, that the transducer torque or speed ratings have not been exceeded and the transducer's calibration date
Transducer configuration software to allow user to changes transducer variables
Sensors to monitor shaft temperature for better compensation and accuracy
Simple 'Sensor Status' output pin
Ability to connect up to 10 transducers using USB

Torque ranges available at any full scale torque: 1Nm to 13,000Nm, with above 13,000Nm on request.

First Annual Recalibration is included in the purchase price. Units must be returned to Omni Instruments for Recalibration

Availability: In stock

Price range : £2,169.00 - £7,812.00

Price as configured: £0.00

Type*: Qty:
Torque Range*: Qty:
Analogue Output Options*: Qty:
Digital Output Options: Qty:
Shaft Fittings*: Qty:
Bearing Type: Qty:
Sealing: Qty:
Link Cable Length*: R - Cable Length between Sensor and Electronics. (Min 2m) +£18.00
Qty:

* Required Fields

Price as configured: £0.00

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Part Builder

Description	SGR TorqSense Transducer for torque and power or speed measurements with external electronics.

Type*
Torque Range*
Analogue Output Options*
Digital Output Options
Shaft Fittings*
Bearing Type
Sealing
Link Cable Length*
Quantity

Components / Downloads

For further information, technical advice, or a quotation please call or email us. If you are not sure which product you need one of our technical sales advisors will be happy to discuss your application. We also accept company purchase orders by fax or post. Credit card orders can also be placed over the phone for any product.

REF	DESCRIPTION	DOWNLOADS	PRICE	ORDER ITEM

TorqSense Transducers
SGR531	SGR531 TorqSense Torque sensor with a fixed analogue outputs for torque and RPM measurements with external electronics. Torque ranges from 0-1Nm to 0-13,000 Nm.	Datasheet Size: (1.52 MB)	£1,955.00	Not Available online
SGR533	SGR533 TorqSense Torque sensor with a fixed analogue outputs for torque and power measurements with external electronics. Torque ranges from 0-1Nm to 0-13,000 Nm.		£1,955.00	Not Available online
SGR541	SGR541 TorqSense Torque sensor with a variable analogue outputs for torque and RPM or power measurements with external electronics. Torque ranges from 0-1Nm to 0-13,000 Nm.		£2,680.00	Not Available online

TorqSense Connector & Lead Options
ACC-01	12 Pin female Lumberg connnector for the analogue outputs.		£22.00	or call us for a quote
ACC-03	Analog Lead (Length 2.5m) 12 Pin Lumberg (female) to 15 way D type connector (female). For connecting SGR/RWT to users system via 15 pin D connector.		£68.00	or call us for a quote

TorqSense Connector & Lead Options - Digital Outputs
ACC-02	12 Pin male Lumberg connnector for the digital outputs with flying leads.		£22.00	or call us for a quote
ACC-04	Digital Lead (Length 2.5m) 12 Pin Lumberg (male) to 15 way D type connector (male). For connecting SGR/RWT to users system via 15 pin D connector.		£68.00	or call us for a quote
ACC-05	Digital Lead Adapter (Length 1m) 15 Way D type (female) to RS232 and Power Connector. For connecting SGR/RWT to PC via RS232. Also needs Digital Lead (ACC4) to connect to SGR/RWT		£39.00	or call us for a quote
ACC-06	Digital Lead Adapter (Length 1m) 15 Way D type (female) to RS232, USB and Power Connector. For connecting SGR/RWT to PC via USB (Option G) or RS232, Also needs Digital Lead (ACC4) to connect to SGR/RWT		£43.00	or call us for a quote
ACC-08	Digital Lead Adapter (Length 1m) 15 Way D type (female) to CANbus and Power Connector. For connecting SGR/RWT to PC via CANbus (Option H). Also needs Digital Lead (ACC4) to connect to SGR/RWT		£39.00	or call us for a quote
ACC-09	Digital Lead Adapter (Length 1m) 15 Way D type (female) to CANbus, USB and Power Connector. For connecting SGR/RWT to PC via USB (Option G) or CANbus (Option H). Also needs Digital Lead (ACC4) to connect to SGR/RWT		£39.00	or call us for a quote

TorqView Software
TORQVIEW	TORQVIEW Advanced Torque Monitoring Software available to operate in conjunction with the SGR or RWT Series Transducers and any of the E102, E202 and E302 series Transducer Display Interfaces to provide a flexible display, real time plotting and data recording facility.		£417.99	or call us for a quote

TorqSense Accessories
PSU-01	AC Mains Adapter Power Supply, 12-32vDC.		£24.00	or call us for a quote
SBU-01	Transducer Signal Breakout Unit. The Breakout Box is an optional accessory which when plugged in, provides easy access for terminals and all of the inputs and outputs in one place. The Breakout Box provides 4mm sockets to output an analog torque and speed signal and allow communication with a PC via the built-in USB and RS232 ports (if supplied from the sensor).		£522.99	or call us for a quote
ETD	Transducer Display ETD. Primarily used to display torque and peak torque, it can also display speed and power, provide access to the analog outputs from the transducer and connect the transducer to a PC for use with TorqView and the Transducer Control Program.		£638.00	or call us for a quote