37results about How to "Reduce the amount of error" patented technology

A method for using visual marker point to locate the 3D object to be connected includes such steps as creating a coordinate system of probe by 4 marker dots, determining the coordinate of probe tip in the coordinate system, calculating the relation between the coordinate systems of world and probe, and coordinate transforming to obtain the coordinate information of probe tip in world coordinate system.

The invention relates to a current balancing circuit and a backlight module with the same. The current balancing circuit comprises a current balancing unit, a control unit and a detection unit, wherein the current balancing circuit is coupled to a plurality of light-emitting units so as to stabilize the current of the plurality of light-emitting units not be influenced by input voltage; the detection unit is coupled to the plurality of light-emitting units and the current balancing unit so as to be beneficial to detecting the minimum operation voltage of the light-emitting units; and the control unit is coupled to the current balancing unit so as to control the operation of the light-emitting units.

The invention relates to a method for determining at least one property of a fuel, in which the closing duration of an armature of a solenoid valve which moves through the fuel is measured during at least one actuation period, and is determined from the measured closing duration. A factor representing at least one property of the fuel is obtained.

The invention provides a wavefront sensor based on adaptive fitting. The wavefront sensor comprises a wavefront sensor, a wavefront fitting device and a wavefront recovery device. The wavefront sensor is used for receiving to-be-detected wavefront and carrying out segmentation and gathering processing on the to-be-detected wavefront so as to obtain a light spot array. The wavefront fitting device is used for carrying out recovery processing on the light spot array so as to obtain recovery wavefront and carrying out space iteration fitting processing on the recovery wavefront so as to obtain recovery wavefront compensation quantity reaching a stable value. The wavefront recovery device is used for carrying out recovery processing on the recovery wavefront compensation quantity which has reached the stable value so as to obtain recovery wavefront with high precision. The wavefront sensor carries out cycle measurement on error quantity subjected to compensation fitting under the effects of the wavefront fitting device, so when the cycle index is increased, error quantity fluctuations are reduced, the measurement precision is improved and high-precision measurement of the recovery wavefront is achieved.

In order to solve the technical prejudice, the present invention provides a weight-volume mixing method for automotive refinish paint with accurate color masterbatch, which includes the following steps: (1) Find the weight formula of the refinish paint used; (2) According to the weight formula of the refinish paint and The measured color masterbatch specific gravity is converted to the corresponding repair paint volume formula; (3) Calculate the type of color masterbatch required and the volume and weight required for each color masterbatch; (4) Find any one of the color masterbatches according to the required color masterbatch type For the color masterbatch barrel corresponding to masterbatch A, take more than half of the volume V required by color masterbatch A 1 , weighing M 1 ; Subtract M from the weight M required by the color masterbatch 1 The resulting weight M 2 Calculate the volume V according to the specific gravity of the color masterbatch measured in step (2) 2 , take the volume as V 2 Complete the retrieving of color masterbatch A; (5) complete the retrieving of other color masterbatches in sequence according to the method in step (4); mix and stir the obtained color masterbatch.

The invention discloses a micro-sugar online measuring system and a measuring method thereof. The online measuring system includes a pretreatment device, a photoelectric detection module and a single-chip microcomputer control module. The output end of the pretreatment device is connected to the photoelectric detection module, the output end of which is connected to the single-chip microcomputer control module. The pretreatment device comprises a mixer, a heater and a first cooler that are connected in order. The outlet of the first cooler is connected to the input end of the photoelectric detection module. The heater is a lightwave infrared heater. The system and the method provided in the invention utilizes a photoelectric detecting technique to conduct micro-sugar content online measurement, the measuring accuracy is high, and at the same time, the lightwave infrared heater is employed to heat a mixed solution of steam condensate and ammonium molybdate, the heating efficiency is high, temperature rise is very fast, and the mixed solution of steam condensate and ammonium molybdate can be heated to a reaction temperature within several seconds to tens of seconds, so that the measurement time is greatly shortened, continuous monitoring of the sugar content in the steam condensate can be guaranteed, and potential safety hazards of production can be solved.