
QTC Cable provides a very simple & convenient method of detecting applied pressure at an object boundary which can be used to provide switching or sensing capabilities. Omni-directional its round coaxial construction means that it can easily be deployed along curved boundaries detecting pressure from all or specifically selected directions depending on the physical integration into the device. Electrically QTC cable is a variable resistor in standard coaxial cable form. When pressure is applied to the outside of the QTC cable the resistance of the QTC core changes from greater than 10 Mandohm to less than 10andohm thus allowing current to flow from the outer braid to the inner central wire. Voltages exceeding 24V or currents exceeding 100m A should not be used.QTC Cable is reliable in operation of over many thousands of cycles since the QTC core prevents failure of the sensor due to air gap collapse & consequential short circuit. Supplied in 100mm lengths.