SU1203616A1 - Meter of residual capacitor of storage battery - Google Patents

Abstract

The invention makes it possible to increase the accuracy of measuring the residual capacity of a battery by using a single pulse loading with a specified current. A rectangular pulse from a single pulse shaper 4 is fed to the input of a current amplitude adjuster 3, which is a regulated current amplifier. From the output of the sensor 3, a current pulse is fed to the input of the sampler 5 of the gating pulse. The gating pulse at the output of the imaging unit 5 unlocks the electronic key 6 of the digital voltmeter 7 at the moment when the established pulsed current flows through the load device 2. The electronic switch 6 for the time of the building pulse connects the input of the voltmeter 7 to the load device 2. In this case, the voltmeter 7 detects the voltage on the battery 1 and in the mode of the pulse load and on the voltage is converted to the residual capacitance. 1 il. (L 8 Yud Od O)

Description

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The invention relates to a measurement technique, and more specifically to measuring residual capacity of a battery.

The purpose of the invention is to improve the measurement accuracy, save energy of the measured object, as well as expand the field of application of the meter,

The drawing shows the scheme of the proposed meter.

The battery 1 is connected to a pulse load device 2, the input of which is connected to the output of the setpoint 3 of the current amplitude. The input of the setpoint 3 current is connected to the output of the former 4 single pulse. The output of the driver 4 pulse is connected to the input of the driver 5 gating pulse, which has at the input an adjustable delay circuit. The output of the gate generator 5 of the gate pulse to the input of the electronic switch 6 connecting the input of the digital voltmeter 7 to the positive terminal of the torus 1. The digital voltmeter 7 is connected through a control circuit to the gate pulse driver 5.

The scheme works in the following way.

A single pulse shaper produces a square pulse at the operator's command. A rectangular impulse from the generator 4 is fed to the input of the setpoint 3, whose input current determines the amplitude of the current pulse through the load device 2. The setpoint 3 is an adjustable current amplifier. The current gain is set by the operator. From the rear output, the atomic current pulse of a certain magnitude enters the input of the load device 2. At the same time, a rectangular pulse from the former 4 arrives at the input of the gateway 5 generator, which is a waiting multivibrator triggered by the forward edge of the former 4 with a delay on Time, the order is chosen, where t | j is the duration of the pulses of the former 4. Gating duration n; its pulse is also chosen to be tp i.e. gating

3 impulse at the output of fordarvatel 5

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unlocks the electronic key 6 and the digital voltmeter 7 at that moment, when a steady-state pulse current flows through the load device 2, and the transients in the load device circuit are stopped by this time. The electronic switch 6 for the time of the gating pulse connects the input of the voltmeter 7 to the load device 2. In this case, the voltmeter records the voltage on the battery in the pulse mode. loads and voltages are converted to residual capacity.

The proposed meter has a wider field of practical application, since the presence of the current setting device allows, at the discretion of the operator, to set the current in the load device of such a magnitude that is necessary to assess the state of various batteries and the proposed discharge mode when measuring battery The torus is subjected to a single pulse loading by the established current, therefore this method of measurement does not lead to a noticeable change in the capacitance of the measured battery, and this increases the accuracy of measuring capacity and minimizes the power consumption of the measured battery.

The presence of the electronic battery and the gate signal generator allows the voltage measurement to be made at the time when the transients in the measurement circuit are terminated, i.e. make a measurement of the voltage measurement in a steady state, which allows the accuracy of the measurement of the absolute value of the voltage, without resorting to its averaging.

Claims (1)

Invention Formula A battery residual capacity meter containing input data for connecting a battery, a pulsed load device and an indicator, characterized in that, in order to improve measurement accuracy, save energy, measure the energy of the measured object and expand the meter application area, a current generator, a single driver impulse, worlds gating impulse. 31203616 4 containing the input controlled connected to the load device delay circuit and electronic key, stvu, output of the driver gating and as an indicator of using a pulse, it is connected to an electronic digital voltmeter, with a switch and a digital input control driver of a single pulse j of a voltmeter, which is measured its output is connected to the input input connected via shaper signaling stronghold key with a positive half-pk of the current setting device, the output of which is the measured source.