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As a part of its distribution partnership with Betatherm, Variohm-Eurosensor is supplying high-reliability thermistors used to monitor critical temperature for extended space flight applications.

The NASA approved and Goddard Space Flight Center (GSFC 311) rated temperature sensor has been supplied to ABSL Space Products based in Abingdon, UK and the US to perform the essential temperature measurement of lithium-ion battery packs that are used to power the life-support system in astronauts’ space suits.

The advanced design of the ABSL Space Products battery pack includes a sophisticated control system with cooling fans and heaters together with the epoxy-encapsulated Betatherm thermistors that maintain the battery temperature within a strict range to provide an optimal operational life.

The battery packs are used to power different types of space suit including the Extravehicular Mobility Units (EMUs) that astronauts typically use when space walking – so the need for the absolute and total reliability from all components used is critical.

Quality control for the NASA-approved range includes re-qualifying products annually by screening visual and mechanical requirements, testing thermal shock, high-temperature storage and insulation resistance to ensure total reliability for space flight and other high-reliability applications.

The working accuracy tolerance for the space suit application is typically better than +/-0.5 per cent over a range of 0C to 70C, with an operational storage temperature range of -55C to +70C.

Betatherm thermistors find applications in demanding temperature measurement, control and compensation applications in biomedical, automotive, aerospace, instrumentation, HVAC, consumer industries and instrumentation.

The range has a reputation for total reliability and accuracy with product features that include interchangeability to +/-0.05C, miniaturised designs to less than 0.35mm diameter, and a high degree of engineering flexibility including rapid prototyping of customised designs.

Betatherm also designs and manufactures high-reliability temperature sensors for European Space Agency (ESA) specified and approved applications.

Variohm Eurosensor

Founded in 1974, Variohm Eurosensor has been the leading single source supplier of sensors and associated electronic systems for over 40 years.
Variohm’s product portfolio includes sensors and transducers for; position, pressure, temperature and load. With a technical sales support team ready for new challenges, Variohm can ensure that the most suitable sensor will be selected for applications in any industry.

Based in Towcester, Northamptonshire, Variohm Eurosensor has been the leading single source supplier of industrial sensors and associated electronic systems since 1974.

With a technical sales support team, receiving regular product training, Variohm has the structure and financial strength to deliver technical support and quality service along with expert up-to-date advice on their entire product portfolio. Variohm’s ability to design, develop, source and deliver a vast range of sensor solutions means that the sales support team is able to work with customers throughout their entire project, enabling customers to influence how their products work.

Variohm’s aim is to provide an efficient, cost effective, flexible service to customers, irrespective of their size, business or geographical location.

Variohm Eurosensor are part of the Variohm Holdings Group. Variohm Holdings as an entity can provide products to suit any sensing application in any industry and is eager to use it’s combined knowledge and skills to solve new applications.

Variohm Eurosensor – Sensors and transducers manufacturer, distributor and supply chain partner
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Variohm Eurosensor’s range of products monitor: –Position, Load, Pressure and Temperature

Position sensors include rotary and linear sensors, cable extension transducers and inclination sensors. Available in various contacting and non-contacting technologies, including Hall effect, incremental and absolute encoders and laser measurement.

Load and force sensing; load cells from 1g to 1000t capacities, available in a wide range of mechanical sizes and designs to suit all applications. High speed bagging controllers, torque transducers to measure both dynamic and static loads, with various mounting and electrical connection options.

Pressure transducers and switches to measure absolute, differential and gauge pressure up to 5000 Bar. These sensors are available is a wide range of outputs and also standard and customised housing options, with IP ratings up to IP69K.

Thermistors and probes offering a wide temperature measurement range, with excellent interchangeability and stability which are also space and flight approved or medically approved where appropriate. Custom and bespoke solutions are available and many are manufactured or modified on site.

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