Platinum has been used in the construction of the world's smallest combined pressure and temperature sensor.

The device from Kulite Sensors measures just six millimetres in diameter, reports Electropages.

Platinum is used in the construction of the temperature sensor. A platinum resistance temperature detector element is located beside a diaphragm in order to detect media temperature.

It is capable of measuring temperatures from as low as -55C to 175C.

The pressure transducer on the miniature threaded device is constructed from a patented silicon on silicon design. The two sensors are designed to work independently.

The robust design of the device is said to be able to make sure it has long-term stability, while its wetted parts are resistant to all forms of common aircraft and automotive fluids.

The whole sensor weighs just 15g without its cable.

It is not the first time that the precious metal has been used in the construction of ultra-small devices. It is already in the Guinness Book of Records for being used in the construction of the world's smallest fuel cell, made by Toshiba.

The direct methanol fuel cell was just 2.2cm by 5.6cm and is 0.45cm thick.

Ÿ Adfero Ltd