For Test Benches and Condition Monitoring of Machinery and Equipment.

Magnetic Solutions.

Magnetic Solutions.Magnetic Sensors from Sensitec enable versatile Solutions for many different Industries and Applications.

MR-Sensor with Magnet

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Sensor

MR-Sensor

Measurement Parameter

Length

Angle

Current

Magnetic Field

The inherent precision and flexibility of the MagnetoResistive measurement principle opens up new applications for test bench measurement and condition monitoring in addition to the typical applications like industrial automation, medical technology or the automotive sector. For measurement tasks which till now have been very complex or even insoluble our technology offers a completely new approach.

Sensors from Sensitec provide clear information about the status of moving, mechanical components or about the electromag-netic identification of motors or other machine elements. It is even possible that the sensors fulfil two functions simultaneously. In addition to the standard information they provide further data about the condition of the machine. We analyze the machine or equipment with regard to the application of magnetic sensor technology and support you with the integration of the measurement points into the existing system environment.

Test Bench

Condition Monitoring

» Length measurement at difficult measuring points

» Measurement using existing machine components

» Miniaturized sensors for smallest envelopes

» Detection of even the smallest movement » Detection of edges, displacements,

expansion, backlash

Length Measurement – Difficult Measurement in smallest Envelopes.

Test Bench

Condition Monitoring

» Measurement using existing rotating machine elements

» Speed and rotation angle » Absolute measurement over 360 °

» Shaft torsion » Torsional vibration » Imbalance

Angle Measurement in harsh Environment – The major Domain of our Technology.

Test Bench

Condition Monitoring

» High bandwidth current measurement » High precision » Low weight

» Measurement of the electromagnetic fingerprint » Motor current signal analysis

Current Measurement – With nearly unlimited Bandwidth.

Test Bench

Condition Monitoring

» Attitude measurement in space

» Stray field measurement » Measurement of the magnetic fingerprint

Magnetic Field Measurement – Up to the Size of the Terrestrial Magnetic Field.

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Solution Modules

Length/AngleDesign Signal analysis User communication

Signal analysis

Length/Angle

Design

Sensor evaluation

Software

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Valve lift sensor Speed sensor

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11 0 1 0 111 0 1 0 1 0 1

* More channels available on request.

Magnetic Solution for the Optimization of Power Train Components.Highly precise measurement of valve lift and valve rotation in a fired combustion engine.A typical application example of a robust xMR sensor solution is the valve lift or valve rotation measurement directly in fired combustion engines under real operating conditions. This type of measurement belongs to the most demanding measurement tasks in power train components of combustion engines. Until now the valve behavior was measured by means of simulation or using electrically supported motors, i. e. the measurement was not carried out under real operating conditions.

Our sensor including evaluation unit (VTMS) enables a reliable valve train monitoring. The measurement accuracy is equivalent to that achieved by laser-based measurement systems.

Application Example Test Bench

Sensor signals Valve lift Measurement evaluation at customer

Multi Channel evaluationSensor module

Product Description

SPP-3001 ADA Multi Channel evaluation with 4 channels *

GLM711AVB-UA Sensor module with 1.5 m connection cable

Description and Components

Valve motion in real time

Real test conditions

Cost-effective installation

High resolution < 0.25 µm

High accuracy < 10 µm

Up to 32 simultaneous measurement channels

Compatible signal output 0 – 10 V

Features

Valve lift

Valve rotation

Linear and rotational measurement at very difficult measuring points

Application

Magnetic Solution for precise Speed Measurement.Intelligent. Robust. Flexible.

Application Example Speed Sensor

The sensor has been developed for the contactless and precise speed measurement at ferromagnetic toothed wheels with flexibility regarding pitch and air gap.

The unit consists of a sensor head and a remote compact processing unit for signal conditioning. The sensor signals are provided as analog or digital output signals.

Depending on the tooth module and air gap the analog output provides a sine output signal with minimal signal distortion. Optionally the processing unit can be equipped with an UART interface which enables access to further functions.

The sensor head can withstand high operating temperatures and is accommodated in a molded housing. The operation is not affected by dirt or oil.

The teflon-coated connection cables are high- temperature resistant and can be supplied with or without an additional protective sleeve. The connections are designed as “open end” lines by default. We supply the unit with customized plug-in connectors, on request.

Technical Data

Parameter

Operating voltage 7 V - 24 V

Output signals – TTL (speed) – Sinus (speed) – Analog (temperature)

Options

– UART-interface for adjustment of TTL pulse-pause ratio

– Electronic type label – Operating hours counter – Temperature sensor PT1000

Toothed wheel module 0.6 - 4

Air gap 4 mm (module 1 - 4)

Material of toothed wheel Steel (ferromagnetic)

Operation temperature Sensor Evaluation electronics

Up to 150 °C Up to 125 °C

Dimensions Sensor Evaluation electronics

D x L: 10 x 22 mmH x B x D: 10 x 54 x 20 mm

22 mm

open end

Sensor head

10 mm

Evaluation electronics

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Sensitec GmbHGeorg-Ohm-Straße 1135633 Lahnau · GermanyPhone: +49 6441 9788-0Fax: +49 6441 9788-17E-Mail: sensitec@sensitec.comwww.sensitec.com

Valve lift

Valve rotation

Linear and rotational measurement at very difficult measuring points

Application