Measuring amplifier with background adjustment and method therefor
A technology for measuring amplifiers and amplifiers, which is applied to amplifiers, amplifiers, and measuring devices with semiconductor devices/discharge tubes, which can solve the problems of unrealistic hardware consumption, high cost, and complicated structure, and achieve the effect of improving accuracy
Active Publication Date: 2016-06-08
HOTTINGER BRUEL & KJAER GMBH
View PDF16 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
This hardware expense is usually impractical in precision measurement amplifiers
The construction of precision measuring amplifiers is substantially more complicated and expensive than the construction of measuring amplifiers for standard requirements
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0039] figure 1 A simplified block diagram of a measurement system 101 according to a first embodiment is shown, wherein not every detail is shown for reasons of clarity. The measurement system 101 comprises a measurement sensor 102 and a measurement amplifier 103 with channels and high accuracy, eg 0.0005%.
[0040] The measuring sensors 102 may be sensors for mechanical variables, such as force, weight, torque or pressure, which are measured using strain sensors, such as strain measuring tapes, interconnected in a Wheatstone bridge circuit. Converted into an electrical signal, the measuring sensor 102 can also be another sensor.
[0041] The measurement amplifier 103 comprises a voltage source 104 , first reference signal generating means 105 , second reference signal generating means 106 , additional amplifier means 107 , first amplifier means 108 and selection means 109 .
[0042] A supply voltage 110 generated by voltage source 104 is supplied to measurement sensor 102 ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention concerns a measuring amplifier (103) with background calibration and adjustment, as well as a method for performing background calibration and adjustment for a measuring amplifier of this type. The measuring amplifier amplifies, digitizes and processes at least one measurement signal (111) from at least one sensing element (102) by means of at least one amplifier arrangement (108) which can temporarily be replaced with an additional amplifier arrangement (107), enabling its continuous calibration and, if necessary, adjustment. In the case of calibration, both a zero error and an amplification error of the amplifier arrangement are reliably determined. In addition, the amplifier arrangement is calibrated directly, not indirectly, thus achieving a high level of accuracy without interrupting measuring. Furthermore, only one additional amplifier arrangement is generally required, even for a measuring amplifier having a plurality of channels.
Description
technical field [0001] The invention relates to a measuring amplifier with background calibration and background adjustment and to a method for carrying out the background calibration and background adjustment of such a measuring amplifier. Background technique [0002] The electrical input signal is converted into a measured value by means of a measuring amplifier. Components such as amplifiers, analog / digital converters, filters etc. are used here, whereby the input signal is amplified, digitized, filtered etc. in order to obtain usable measured values. The electrical input signal may be provided by one or more measurement sensors. Accordingly, the measuring amplifier can have one or more channels. [0003] The circuit of a measuring amplifier usually has a plurality of individual components, each of which has its own tolerances. Especially in the case of precision measuring amplifiers, the permissible tolerances are only very small. The original tolerances of the comp...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H03M1/10
CPCH03M1/1004H03M1/1028H03M1/12G01D18/004G01D18/00H03F3/45071H03F2200/261H03F2200/375
Inventor M·M·沙克H·基青
Owner HOTTINGER BRUEL & KJAER GMBH