Abstract: A sensor uses an accelerometer to measure acceleration values in two axes to detect if a tip-over angle of a system has exceeded a tip-over threshold angle ?. Each acceleration value is respectively multiplied by a corresponding factor a, b. The two factors a, b are chosen as a function of the tip-over threshold angle ?. Two values are calculated and each calculated value is compared to zero. Depending upon which values are greater than or less than zero determines whether the tip-over angle has been exceeded. The detector, upon sensing of a tipped-over condition, provides a signal indicative of that condition. The output signal can be employed to trigger an alarm or to shut down a device that has tipped over or to otherwise denote the tipped-over condition.

Abstract: A multiple-axis accelerometer for use with a blood pressure monitor or a blood pressure measuring device (BPM) to determine an inclination associated with the point of fixture. The accelerometer is attached to a substrate that is structured and arranged in a vertical or substantially vertical plane. The accelerometer includes a first accelerometer portion that is adapted to generate a first output based on acceleration in a first direction in the vertical plane (Ax); and a second accelerometer portion that is adapted to generate a second output based on acceleration in a second direction, orthogonal to the first direction, in the vertical plane (Ay). The first and second outputs provide a measure of the inclination about an axis that is orthogonal or substantially orthogonal to the vertical plane. The measured inclination is a roll angle (?) is given by the formula: ?=arctan(Ay/Ax).

Abstract: A multiple-axis accelerometer for use with a blood pressure monitor or a blood pressure measuring device (BPM) to determine an inclination associated with the point of fixture. The accelerometer is attached to a substrate that is structured and arranged in a vertical or substantially vertical plane. The accelerometer includes a first accelerometer portion that is adapted to generate a first output based on acceleration in a first direction in the vertical plane (Ax); and a second accelerometer portion that is adapted to generate a second output based on acceleration in a second direction, orthogonal to the first direction, in the vertical plane (Ay). The first and second outputs provide a measure of the inclination about an axis that is orthogonal or substantially orthogonal to the vertical plane. The measured inclination is a roll angle (?) is given by the formula: ?=arc tan(Ay/Ax).

Abstract: A system and device for detecting inclination that eliminates the need to compensate for the acceleration of the vehicle is disclosed. The system includes a multi-axis acceleration sensing device that is fixedly attached to the object such that each sensing axis of the multi-axis acceleration sensing device lies in a common plane with the forward-aft axis of the object and the sensing axes are orthogonal to one another and each sensing axis is oriented 45 degrees from the forward-aft axis.

Abstract: A system and device for detecting inclination that eliminates the need to compensate for the acceleration of the vehicle is disclosed. The system includes a multi-axis acceleration sensing device that is fixedly attached to the object such that each sensing axis of the multi-axis acceleration sensing device lies in a common plane with the forward-aft axis of the object and the sensing axes are orthogonal to one another and each sensing axis is oriented 45 degrees from the forward-aft axis.

Abstract: In a method of fabricating an aluminum surface for applying mirror-smooth fabrication to the surface of aluminum or aluminum alloy by combining an electrolytic anode dissolving effect to the surface and a polishing effect of removing the protruded portions of passivated films formed on the surface to be fabricated by lapping with abrasive grains, the voltage between the aluminum material and the tool electrode is set within 2.1.+-.0.3 V, an electrolyte at less than 10% concentration is used as a passivation type electrolyte, the urging pressure of the tool electrode to the surface is set to less than 2.0 kgf/cm.sup.2 and free abrasive grains with the average grain size of less than 1.0 .mu.m are used as the abrasive grains. The temperature of the electrolyte is preferably set to lower than 15.degree. C. The polishing material may comprise non-woven abrasive cloth made of ultrafine fibers.