SU429354A1 - DIGITAL MEASURING DEVICE - Google Patents

Description

The invention relates to digital instrumentation.

Digital measuring devices are known that include a pulse counter, an information output unit, a reference signal generator, a frequency divider, a phase constant generator, and a control device.

The proposed digital measuring device differs in that it is equipped with a block for recording the initial state of the bits of the frequency divider containing the driver for gating pulses, the readout key ii of the KEY for the installation. The inputs of the gating pulse generator are connected to the outputs of the control device and the constant generator, and the output is connected to the inputs of the keys, the second input of the offset switch is connected to the bus of the clock pulses of the constant generator, and the output is connected to the inputs of the splitter bits. The second inputs of the installation keys are connected to the outputs of the constant generator, and the outputs are connected to the reset inputs of the divider.

This simplifies and improves the reliability of the device.

The drawing shows a functional diagram of a digital measuring device.

It contains a pulse counter 1, the outputs of the bits of which are connected to the information output unit 2; a generator of 3 reference signals, connected by its output to the input of the preliminary divider 4, one of the inputs of the latter is connected to the input of the generator 5 phase constants connected to the information output unit 2. The outputs of the preliminary splitter 4 and the generator 5 of the constants are connected to the input of the control device 6, one of the inputs of which is connected to the terminal 7 of the input signals.

In addition, the device contains serially connected bits 8 of a divider, the input of the first of which is connected to the output of control device 6, and their outputs are connected to the input of device 6; Block 9 records the initial state of the bits 8 of the divider, which includes the shaper pulse shaper W, its input and output connected to the control device, as well as the preset key 11, the inputs of which are connected to the shaper 10 and the preliminary splitter 4. Output key P the calculation is connected to the inputs of all bits 8 of the divider.

The digital measuring device also contains installation keys 12, one of the inputs of which is connected to the output of the imaging unit 10, and their second inputs, in accordance with the installation value, are connected to the outputs of the constant generator.

At the end of the information output time, the control device generates a reset signal for the counter / and the start of the generator 10 gating pulses. Both switching on and turning off the imaging device MO is performed by a signal, which coincides with a bullet constant, as a result, a packet of ten synchronizing signals is formed at the output of the key /: /. If these signals are applied to the inputs of bits 8, then the absence of an effect on the bits of the control signals after the end of the state of bits 8 will remain unchanged. If the divider bit is reset to the zero state in the process of recalculation of the specified lacquer, the pump is synchronous with the third pulse, then at the end of the bit bit 1d the bit will be set to the seventh state, if you reset the sync .POHHO bit with the pulse, state four, etc.

Signals that coincide with the desired burst of a burst are generated using keys 12, the inputs of which receive the pulses of phase coefficients from the generator. At the time of recording the initial state of the bits of the 8 divider, the input signals arriving at the first digit of the divider are blocked by the gating pulse from the heater, which enters the input of the control unit 6.

At the end of the installation process, the signals to be divided begin to arrive at the input of the divider. If, for example, the number 9998 is recorded in bits 8 of the divider, then at its output a pulse is formed synchronously with the second input pulse, which is the signal to start counting. It is fed to the input of the control device 6. The next pulse (counting) from the same output, the divider is formed after 104 input pulses. After the end of the account follows

stage information output. A corresponding signal is generated in the control device 6. A new measurement cycle starts by starting the gate pulse generator and resetting the counter.

Putting down the block of recording the initial state of the splitter bits allows recording of an arbitrary state of the splitter bits when installing triggers for decades.

only in the zero state.

This makes it possible to use the simplest unified decades, for example, phase-impulse circuits, and bodies (as the most significant

device, increase its reliability, reduce the cost.

Subject invention

A digital measuring device containing a pulse counter, an information output unit, a reference signal generator, a frequency divider, a phase constant generator and a control device, characterized in that, in order to simplify and increase the reliability of the device, it is equipped with a frequency divider recording unit containing a gating pulse shaper, an adjusting switch and an installation key, with the gating pulse shaper inputs connected to the outputs of the control device and the constant generator, and the output connected to the inputs of the aforementioned keys, while the second input of the increment key is connected to the clock clock pulse impulse of the constant generator, and the output to the inputs of the splitter bits, the second inputs of the installation keys are connected to the outputs of the constant generator, and the outputs Dov divider.

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