B33 Double integrating volmetri | Engineering, engineering, materials, papers, development
The main advantage of these voltmeters is their greater noise immunity. Noise immunity is an important feature of modern appliances defining sposobostta to work with preserved metrological characteristics alex and ani in terms of electromagnetic interference. This feature is especially important when using industrial alex and ani appliances in Slovenia and measurement of small signals.
The structural diagram of the timing diagram dvoynointegrirashtiya voltmeter are shown in Figure 1. The main blocks in it are BK- block commutation; N- Integrator University Compilation device (comparator); IOP exemplary source of tension; BL- block of logic; IG- pulse generator; SS -shema matching; BR- counter; TSOU- digital alex and ani reading device.
The block of logic BL produces trigger pulse at time t0 and block switching BC missed the entrance of the analog integrator and measurement voltage Ux. Uu output voltage of the integrator increases from zero to the value
It is constant and determined by the period To = 1 / fo pulse generator IG and the capacity (the maximum number of pulses) H1 counter PCS. To increase noise immunity duration of the first cycle of integration is selected alex and ani equal to or multiples of the period of the main (network) interference 20ms.
At the moment t1 BL switches BC so that the entrance of the integrator to do exemplary voltage Uo with opposite polarity Ux. Simultaneously, the counter is reset PCS. The output voltage alex and ani of the integrator starts decreasing:
From descriptions principle of action and the resulting expression it is clear that dvoynointegrirashtite voltmeters refer to a group of vremeimpulsnite voltmeters alex and ani with intermediate conversion of the measured voltage in time.
Created opportunity is the perfect expression of performance that does not reflect methodological error of discretion and the instrumental error of the imperfection of individual blocks. The main sources alex and ani of instrumental errors are: parasitic parameters of block commutation; non-linearity and zero drift of the integrator; unstable work exemplary source of tension; nechustvielnost threshold and zero drift of comparison device;
In the structural diagram of Figure 1 is not shown major input amplifier to which actually provides the measured voltage Ux. It does not affect the essence of ATsPreobrazuvane, but it depends on the input resistance of the voltmeter.
All digital devices, in which SG, value is converted in the period of time in the phase difference in the frequency or the average value using generators with stable frequency, in the analog blocks and in zifrovata part.
Each generator Race 3 blocks fig1 (main amplifier unit positions Feedback-BPOB Block Negative feedback-BOOV- serves to stabelizirane of amplitudaa of ref. Signal and to prevent ba uslivaelya of polarization, ie by cut on deep saturation).
Deisv. alex and ani resistance. R Played role of denials. Countdown. ELEM connection and prevent falling into deep saturation mode. Instrumenalnata error Taqwa kind of generator is around 10 -7: 1. Much more accurate are the so-called quantum generaori.Pri them this error may reach 10 -11 10 -12. These quantum generaori. These quantum eneratori may be cesium, hydrogen and others. They use the following alex and ani phenomenon fig3
Function generators - in tyanoto classic performance produces 3 naprezheniya- alex and ani pravagalni impulses trionobrazni pulses alex and ani and sine impulsi.HG produced in integrated performance and represents inegrator and comparator covered by one general denials feedback
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Automation Analysis Activities Electric Power Electronics Measurement Testing Measurement Survey calculation Inverters Classification Project Lectures Material Mechanics Method alex and ani Methods Determination Crib Crib Project Design Protocol Working Essence Technology Management Device types of high-voltage electrical design project materials machinery power converters AC systems engineering technology transport electricity transformers
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The main advantage of these voltmeters is their greater noise immunity. Noise immunity is an important feature of modern appliances defining sposobostta to work with preserved metrological characteristics alex and ani in terms of electromagnetic interference. This feature is especially important when using industrial alex and ani appliances in Slovenia and measurement of small signals.
The structural diagram of the timing diagram dvoynointegrirashtiya voltmeter are shown in Figure 1. The main blocks in it are BK- block commutation; N- Integrator University Compilation device (comparator); IOP exemplary source of tension; BL- block of logic; IG- pulse generator; SS -shema matching; BR- counter; TSOU- digital alex and ani reading device.
The block of logic BL produces trigger pulse at time t0 and block switching BC missed the entrance of the analog integrator and measurement voltage Ux. Uu output voltage of the integrator increases from zero to the value
It is constant and determined by the period To = 1 / fo pulse generator IG and the capacity (the maximum number of pulses) H1 counter PCS. To increase noise immunity duration of the first cycle of integration is selected alex and ani equal to or multiples of the period of the main (network) interference 20ms.
At the moment t1 BL switches BC so that the entrance of the integrator to do exemplary voltage Uo with opposite polarity Ux. Simultaneously, the counter is reset PCS. The output voltage alex and ani of the integrator starts decreasing:
From descriptions principle of action and the resulting expression it is clear that dvoynointegrirashtite voltmeters refer to a group of vremeimpulsnite voltmeters alex and ani with intermediate conversion of the measured voltage in time.
Created opportunity is the perfect expression of performance that does not reflect methodological error of discretion and the instrumental error of the imperfection of individual blocks. The main sources alex and ani of instrumental errors are: parasitic parameters of block commutation; non-linearity and zero drift of the integrator; unstable work exemplary source of tension; nechustvielnost threshold and zero drift of comparison device;
In the structural diagram of Figure 1 is not shown major input amplifier to which actually provides the measured voltage Ux. It does not affect the essence of ATsPreobrazuvane, but it depends on the input resistance of the voltmeter.
All digital devices, in which SG, value is converted in the period of time in the phase difference in the frequency or the average value using generators with stable frequency, in the analog blocks and in zifrovata part.
Each generator Race 3 blocks fig1 (main amplifier unit positions Feedback-BPOB Block Negative feedback-BOOV- serves to stabelizirane of amplitudaa of ref. Signal and to prevent ba uslivaelya of polarization, ie by cut on deep saturation).
Deisv. alex and ani resistance. R Played role of denials. Countdown. ELEM connection and prevent falling into deep saturation mode. Instrumenalnata error Taqwa kind of generator is around 10 -7: 1. Much more accurate are the so-called quantum generaori.Pri them this error may reach 10 -11 10 -12. These quantum generaori. These quantum eneratori may be cesium, hydrogen and others. They use the following alex and ani phenomenon fig3
Function generators - in tyanoto classic performance produces 3 naprezheniya- alex and ani pravagalni impulses trionobrazni pulses alex and ani and sine impulsi.HG produced in integrated performance and represents inegrator and comparator covered by one general denials feedback
Links Green Energy Dog Plastic Technology Abstract Search for: Tags
Automation Analysis Activities Electric Power Electronics Measurement Testing Measurement Survey calculation Inverters Classification Project Lectures Material Mechanics Method alex and ani Methods Determination Crib Crib Project Design Protocol Working Essence Technology Management Device types of high-voltage electrical design project materials machinery power converters AC systems engineering technology transport electricity transformers
May 2015 P In With P P With H "July 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Categories Architecture Uncategorized Electronics Electrical Machinery Make DIY radio Construction Transportation Technical Sciences Physics Chemistry Search for:
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