Electroceramic Sensors – Applications of Electroceramic Senors by Morgan Technical Ceramics

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Topics Covered

Background

Sensor Types

Applications for Electroceramic Sensors

Ultrasonic Sensors

Accelerometers

Arterial Pressure Transducer

Wheel Balancing Sensors

Impact Sensors

Background

Morgan Electro Ceramics is a world leader in the field of electroceramics and manufactures a wide range of specialised piezoelectric transducers and sensors for mechanical, electrical and electronic applications. With design centres and manufacturing locations in Europe and the USA, Morgan Electro Ceramics specialises in designing and manufacturing complete solutions for OEM applications. Many of our customers find that Morgan Electro Ceramics’ complete Sensor and Transducer divisions offer a Total Solution to their needs. Main markets served included medical, aerospace, industrial and defence.

AZoM - Metals, ceramics, polymers and ceramics - Electro Ceramic Sensors from Morgan Electro Ceramics

Sensor Types

Sensor types include:

         Ultrasonic Sensors

         Accelerometers (passive)

         Blood pressure sensor

         Wheel balancing

         Impact Sensors

Applications for Electroceramic Sensors

Morgan Electro Ceramics range of custom designed sensors find applications in many markets in particular Medical, Industrial and Aerospace. Key applications include level, flow, vibration and dynamic pressure measurement. The sensing principals used in Morgan sensors are either acoustic (active) and piezoelectric (passive)

Electronics form a key part of every sensor and Morgan Electro Ceramics offer sensors comprising of the sensing element only or design incorporating a level of electronics integration. Electronics design and manufacture is done in co-operation with our partner companies which include APEX in the USA and others in Europe.

Designing a drive circuit to match transducer characteristics is critical for good system performance. Morgan’s transducers are fully tested to ensure consistent electrical and mechanical characteristics to ensure good compatibility with our customer’s drive circuits.

Ultrasonic Sensors

AZoM - Metals, ceramics, polymers and ceramics - Ultrasonic Sensors from Morgan Electro Ceramics

AZoM - Metals, ceramics, polymers and ceramics - Ultrasonic sensors from Morgan Electro Ceramics

AZoM - Metals, ceramics, polymers and ceramics - Ultrasonic sensors from Morgan Electro Ceramics

Ultrasound Sensors use either time of flight measurement, doppler or acoustic transmission principles to measure a wide range of parameters.

         Level sensors

         Flow sensors

         Air in line sensors / bubble detectors

         NDT sensors

Morgan Electro Ceramics considerable expertise in key technologies for ultrasonic sensors is used to design custom sensors for OEM applications. Examples range for fuel level sensors for Boeing aircraft and probes for patient monitoring.

Morgan Electro Ceramics Engineers have expert knowledge of the fundamentals such as acoustics, matching layers, damping and adhesive technology which are all key to good transducer design.

A large portfolio of materials are used to design the optimum sensor in terms of acoustics, electro-mechanical properties and environmental resistance.

Designing a drive circuit to match transducer characteristics is critical for good system performance. Morgan Electro Ceramics transducers are fully tested to ensure consistent electrical and mechanical characteristics to ensure good compatibility with our customer’s drive circuits.

Accelerometers

AZoM - Metals, ceramics, polymers and ceramics - Accelerometers from Morgan Electro Ceramics

AZoM - Metals, ceramics, polymers and ceramics - Accelerometers from Morgan Electro Ceramics

AZoM - Metals, ceramics, polymers and ceramics - Accelerometers from Morgan Electro Ceramics

Morgan Electro Ceramics stable and high sensitivity materials form an excellent basis of accelerometers. The piezo electric materials can be used in either compression or shear mode to form single or multi-axis accelerometers. Accelerometers can be housed in standard housing (e.g. transistor cans) or custom made packages.

Morgan Electro Ceramics bimorph materials can also be used where increased sensitivity is required.

Arterial Pressure Transducer

AZoM - Metals, ceramics, polymers and ceramics - Arterial pressure transducers from Morgan Electro Ceramics

Piezoelectric technology provides ultrasensitive readings

The Arterial Pressure Transducer (APT) is a piezoelectric transducer that provides fast, accurate blood pressure readings. Like all of Morgan Electro Ceramics’ ultrasonic transducers, it has been designed using our world leading piezo materials. These materials have extremely good electrical loss properties, high coupling and excellent mechanical properties.

We design our transducers using in-house modeling software backed by extensive test and measurement capabilities, including laser vibrometry for displacement measurement. All of Morgan Electro Ceramics’ transducer solutions are designed and manufactured to meet the requirements of customer specifications, for reliable performance in the most demanding environments.

The APT’s 1.25” diameter probe has a resonant frequency of 1.8khz, capacitance of 2000pf, and an output of 3 volts/Newton. It can be used with blood pressure cuffs, works well as a microphone, and comes with a shielded cable. It is available in O.E.M. quantities from stock.

A leader in piezoelectric technology

Morgan Electro Ceramics is a subsidiary of the Morgan Crucible Group Plc and forms part of the Morgan Technical Ceramics division. Morgan Electro Ceramics is a world leader in the design and manufacture of piezo components used in medical electronics applications, including:

         gas and liquid flow sensors

         doppler probes for fetal monitoring

         air in-line sensors

         actuators for miniature pumps

         ultrasonic imaging

         pacemakers

Wheel Balancing Sensors

Morgan Electro Ceramics’ over-moulded sensors for wheel balancing can be found in many garage workshops around the world. Many OEM manufactures of wheel balancing equipment have found that Morgan Electro Ceramics design offers and excellent solution in terms of value for money, robustness and accuracy. These over-moulded sensors are available in a number of versions. Transducers are generally supplied with exposed (solderable) connectors. Upon request custom versions with either IDC or flying leads (with or with out connector) can be manufactured.

AZoM - Metals, ceramics, polymers and ceramics - Wheel balancing sensors from Morgan Electro Ceramics

Sensing material

Type

No. of sensing elements

Part No.

Contacts

Leaded version

5A2

Compression

2

0911/000

pdf

upon request

403

Compression

2

0911/001

pdf

upon request

As well as over-moulded designs Morgan Electro Ceramics also offers custom solutions using other housing methods to specific customer requirements.

Impact Sensors

AZoM - Metals, ceramics, polymers and ceramics - Impact sensors from Morgan Electro Ceramics

 

Impact sensors use the piezo-electric effect to sense forces (dynamic) and rate of force application. Example applications of impact sensors are coin validation equipment and firmness testing (e.g. fruit). In designing these sensors great care is taken to ensure that the signal response is consistent in a variety of conditions, angle of impact, temperature etc. Morgan Electro Ceramics Engineers are able to design custom sensors meeting all your requirements.

 

Source: Morgan Technical Ceramics

 

For more information on this source please visit Morgan Technical Ceramics.

 

Date Added: Feb 16, 2007
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