Flexpoint Sensor Systems, Inc.

Flexpoint -Ā Model BXS - Battery Expansion Sensor

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Flexpoint Sensor Systems (FLXT) is a leading supplier of thin-film sensing technology to many industries, including automotive, medical, industrial controls, and consumer products. Flexpoint manufactures a patented new flexible sensor that has also proven to be an extremely durable switch. The single-layer Bend Sensor® product allows for the measurement of mechanical movement, airflow, water flow, or even vibration. In addition, it has been tested to over 35 million cycles without failure. It can be used as a range of motion sensor or as a very durable, very reliable switch in most harsh environments. The Bend Sensor has no moving parts, is completely silent in operation, and is adaptable to a wide range of applications. The breadth of applications for our sensor is limited only by one`s imagination.

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  • Single Layer Construction
  • Does not require enclosure pressure to actuate
  • Excellent in harsh environments
  • Resistant to liquids, dust and dirt
  • Durable, tested to over 30 million cycles
  • I2C Interface (Up to 400kbps)
  • 8-bit resolution (0 to 255)
  • Up to 10 Samples per Second
  • Super low shutdown current
  • Wide voltage range (1.71V – 5.5V)
  • -40º C to 85º C rated (can be configured to 200 ºC operating temp)

Flexpoint’s patented BXS device consists of a single layer, thin, (0.005” typ.) flexible piece of material that is coated with a proprietary carbon/polymer-based ink. This type of resistive element is commonly used to make thick film resistors, resistor networks, slide potentiometers and transducers. Flexpoint’s proprietary inks are primarily printed on thin plastic films.

The BXS’s resistance increases when it is bent. Therefore, when the BXS is adhered to the expanding surface of the battery the sensor’s resistance increases when the surface of the battery expands creating a bent or dome surface. The more the battery expands the higher the BXS resistance increases.