35results about "Provision for operation by null methods" patented technology

A motor controller comprising, a detector configured to perform a difference processing for information relating to a counter electromotive force and an induced electromotive force generated by a stepping motor, and to generate a driving control signal based on a result of the difference processing, and a driver configured to drive the stepping motor based on the driving control signal.

There is provided a method of returning a pointer driven by a motor to an origin point disposed between a starting point and an endpoint of a movement range of the pointer, the method comprising the steps of: moving the pointer from an arbitrary point in the movement range to a reference point that is away from the starting point by not less than a distance between the starting point and the origin point; thereafter moving the pointer from the reference point toward the starting point; detecting the pointer by a sensor at a detection point whose relative position with respect to the origin point is known; and stopping, when the pointer at the detection point is detected, the pointer moving from the reference point toward the starting point at a predetermined point of time based on timing of the detection of the pointer at the detection point.

An amplifying device for a sensor (10) delivering a response in voltage or impedance has a voltage controlling means for the sensor and at least an additional impedance (12). The voltage controlling means (22) is connected to output terminals (16, 20) of the sensor to maintain a noticeably constant voltage between the terminals. The additional impedance (12) is connected in series with the sensor within a polarization circuit, between the output terminals (18–16; 18–20) of the device. The amplifying device may be applied to temperatures, irradiation levels and pH measurement.

The device (100) has a current source (103) generating a measuring current (101). Another current source (104) generates a compensating current (105) in order to compensate a part of the measuring current. A detection circuit (106) detects a deviation of the measuring current from a nominal value on the basis of the compensating current, where detection of the deviation is performed using a voltage measurement process. A current-sensing resistor unit (108) is provided such that compensating current flows through the current-sensing resistor unit. Independent claims are also included for the following: (1) a method for the generation and simultaneous monitoring of a measuring current for one of a level meter, a pressure gauge and a flowmeter (2) a program element instructing a processor to perform a method for the generation and simultaneous monitoring of a measuring current (3) a computer-readable medium to perform a method for the generation and simultaneous monitoring of a measuring current.

The invention relates to a method for adjusting the zero position of an electrostatic monitor repeating platform sensor, comprising the following steps: (1) preparation work for zero adjustment of an angle sensor and a position sensor; (2) zero adjustment of the right and stern angle sensors; ⑶. Zero adjustment of bow and left position sensors. The design idea of ​​the achievement of the present invention is ingenious and innovative, and provides a method for adjusting the zero position of the sensor of the electrostatic monitor repeating platform. Using this method can ensure precision assembly accuracy, meet the high-precision requirements of the electrostatic repeating platform, and improve work efficiency. , Guaranteed product quality, has promotional value.

The invention belongs to a sensor debugging technique and relates to the improvement on a zero-debugging method of a sensor for a main control valve of a steering engine actuator. The zero-debugging method is used for carrying out mechanical zero debugging to a sensor [5] and comprises the following steps of: adjusting a gap between a flexible rod [2] and a sensor bush [3]; measuring the change amounts of four-channel output values of the sensor [5]; and adjusting the angle of the sensor bush [3]. The zero-debugging method can solve the problem of the ultra-poor consistency of the four-channel output values of the sensor after the main control valve is installed on the steering engine actuator and improve the assembling and debugging efficiency of the steering engine actuator.

A semi-hidden meter with a sub-meter mileage zero-adjusting mechanism, comprising an instrument body, a zero-adjusting mechanism and an instrument back panel; the instrument body includes an instrument shell and an instrument movement arranged in the instrument shell; the zero-adjusting mechanism It includes a zero-adjustment crossbar and a tooth-type zero-adjustment knob arranged at one end of the zero-adjustment crossbar, and the other end of the zero-adjustment crossbar is connected with the instrument movement in the instrument shell; the instrument back panel is provided with A first window and a second window, the instrument body is sleeved on the first window, and the tooth-type zero adjustment knob of the zero adjustment mechanism is sleeved on the second window. In the semi-hidden meter with the subtotal mileage zero adjustment mechanism provided by the present invention, the meter body and part of the zero adjustment knob can be covered by the meter back panel, which not only improves the overall appearance effect, but also solves the problem when the user washes the car. The possibility that the instrument is easy to enter the water; at the same time, the user's zero adjustment can be adjusted from horizontal to vertical, thereby saving the design space of the whole vehicle.