Tilt switches are used to sense movement (tilt) of a device above and below a horizontal axis. The angle through which the switch must move for proper operation – the differential angle – is measured from the point of just make to just break; it is specified as a maximum. Some applications include: thermostats, level controls, appliances, security alarm systems, toys and games, float switches and water-treatment equipment (non-mercury)
Tip-over switches sense tilt over 360° of a vertical axis. A common use is in portable heaters used in the home to prevent electrical shock or fire. When the heater tilts more than a specified angle, the switch operates turning the heater off. This angle, called the operating angle, describes the angle from vertical to the point of contact operation. Both normally closed (tilt to open) and normally open (tilt to close) switches are available. Some additional applications include: portable lamps, PC anti-theft devices, vending-machine alarms and machinery security systems
Different technologies are available.
Tilt switch: Ball contact, Opto-electronics, Electronic tilt, Micro miniature, Non mercury contacts, Surface mount
Tip over switch: Ball contact
Typical applications of these compact sensor modules include precise leveling and angular positioning of everything from X-ray mirrors to electromagnets, telescope frames to race car models in wind tunnels. Geophysicists use them in ocean bottom seismometer/tiltmeter systems and for cancelling noise caused by angular movements of precise magnetometers.
Our Miniature Tilt Sensors consist of one or two of our electrolytic transducers (for single- or dual-axis measurements) potted or fastened to a solid metal block containing holes for vertical or horizontal mounting. Anodized aluminum housings are standard, with 304 stainless steel used in low-outgassing vacuum-compatible versions. Choose from the high-gain Series 755, mid-range Series 756 and Model 84053, and wide-angle Models 84064-02 and 57579-02.
The features of the vacuum-compatible versions of these sensors are described in detail in the application note listed under "Vacuum Applications" in the column to the left.
The IRIS Tilt Switch and Controller is a powerful new control device that enables you to measure and respond to rotational movements in any direction with reference to the unchanging gravity vector. Use IRIS to:
maintain platform levelness,
avoid tipover conditions,
prevent out-of-range movement,
and for many other control requirements.
