Apparatus for determining the course of stroke, speed, and acceleration on a cam profile

Claim 1

An apparatus for determining the course of stroke, speed, and acceleration on a profile of a plane, rotating cam means, comprising in combination: a. a displacement sensor means cooperating with the cam means for emitting a pulse train, proportional in number to the stroke of the cam means, upon rotation of said cam means, b. a coder means controlled by said pulse train emitted by said displacement sensor means for furnishing a digital signal of the stroke of the cam means, c. a computer means controlled by the digital signal of the stroke for calculating the first and second derivative of said signal and for furnishing digital signals of the stroke, speed, and acceleration of the cam means which are variable in time. d. an angular movement sensor means cooperating with said cam means for emitting a digital signal of angular displacement of said cam means upon rotation of said cam means, e. an X-Y recorder means with an ordinate recording input and an abscissa recording input capable of being controlled by respective analogous signals, and f. a conversion and synchronization circuit means controlled by the signals emitted by said coder means and computer means and by the angular movement sensor means, respectively, for converting said signals into analogous form in accordance with prefixed increments of the signal emitted by said angular movement sensor and for furnishing corresponding analogous signals proportional to said signals for the ordinate input and abscissa input of said X-Y recorder means; said conversion and synchronization circuit means comprising a digital/analogous converter of the signal of stroke, speed, and acceleration, respectively, of said cam means, a digital/analogous converter of the signal of the angular displacement of said cam means, and a stepping circuit comprising divider and coder means of the pulse signal emitted by the angular movement sensor for furnishing the digital signal of angular displacement and also an enabling signal for the two digital/analogous converters in correspondence with the preselected increment steps of the angular displacement of said cam means.

Claim 2

An apparatus for determining the course of stroke, speed, and acceleration on a profile of a plane, rotating cam means, comprising in combination: a. a displacement sensor means cooperating with the cam means for emitting a pulse train, proportional in number to the stroke of the cam means, upon rotation of said cam means, b. a coder means controlled by said pulse train emitted by said displacement sensor means for furnishing a digital signal of the stroke of the cam means, c. a computer means controlled by the digital signal of the stroke for calculating the first and second derivative of said signal and for furnishing digital signals of the stroke, speed, and acceleration of the cam means which are variable in time. d. an angular movement sensor means cooperating with said cam means for emitting a digital signal of angular displacement of said cam means upon rotation of said cam means, e. an X-Y recorder means with an ordinate recording input and an abscissa recording input capable of being controlled by respective analogous signals, and f. a conversion and synchronization circuit means controlled by the signals emitted by said coder means and computer means and by the angular movement sensor means, respectively, for converting said signals into analogous form in accordance with prefixed increments of the signal emitted by said angular movement sensor and for furnishing corresponding analogous signals proportional to said signals for the ordinate input and abscissa input of said X-Y recorder means; said conversion and synchronization circuit means comprising a digital/analogous converter of the signal of stroke, speed, and acceleration, respectively, of said cam means, a digital/analogous converter of the signal of the angular displacement of said cam means, and a stepping circuit comprising divider and coder means of the pulse signal emitted by the angular movement sensor for furnishing the digital signal of angular displacement and also an enabling signal for the two digital/analogous converters in correspondence with the preselected increment steps of the angular displacement of said cam means.

Claim 3

An apparatus for determining the course of stroke, speed, and acceleration on a profile of a plane, rotating cam means, comprising in combination: a. a displacement sensor means cooperating with the cam means for emitting a pulse train, proportional in number to the stroke of the cam means, uPon rotation of said cam means, b. a coder means controlled by said pulse train emitted by said displacement sensor means for furnishing a digital signal of the stroke of the cam means, c. a computer means controlled by the digital signal of the stroke for calculating the first and second derivative of said signal and for furnishing digital signals of the stroke, speed, and acceleration of the cam means which are variable in time, d. an angular movement sensor means cooperating with said cam means for emitting a digital signal of angular displacement of said cam means upon rotation of said cam means, e. an X-Y recorder means with an ordinate recording input and an abscissa recording input capable of being controlled by respective analogous signals, and f. a conversion and synchronization circuit means controlled by the signals emitted by said coder means and computer means and by the angular movement sensor means, respectively, for converting said signals into analogous form in accordance with prefixed increments of the signal emitted by said angular movement sensor and for furnishing corresponding analogous signals proportional to said signals for the ordinate input and abscissa input of said X-Y recorder means; said coder means comprising an interpolation unit serving to convert the pulse signal emitted by the angular movement sensor into a single digital figure representing the increments of the stroke, an up/down counter controlled by a ''''clov'''' signal at the cadence of the pulses of the displacement sensor means, a complementer means of the figure representing increments of the stroke and control circuits controlled by the figure of the increment of the stroke and by the complemented figure of the increment of the stroke, for generating a UDC control signal in the sense of calculating for a counter means, and at the same time, in the sense of further developing said single figure of the stroke, the content of the counter means constituting the digital signal of the stroke.

Claim 4

An apparatus for determining the course of stroke, speed, and acceleration on a profile of a plane, rotating cam means, comprising in combination: a. a displacement sensor means cooperating with the cam means for emitting a pulse train, proportional in number to the stroke of the cam means, uPon rotation of said cam means, b. a coder means controlled by said pulse train emitted by said displacement sensor means for furnishing a digital signal of the stroke of the cam means, c. a computer means controlled by the digital signal of the stroke for calculating the first and second derivative of said signal and for furnishing digital signals of the stroke, speed, and acceleration of the cam means which are variable in time, d. an angular movement sensor means cooperating with said cam means for emitting a digital signal of angular displacement of said cam means upon rotation of said cam means, e. an X-Y recorder means with an ordinate recording input and an abscissa recording input capable of being controlled by respective analogous signals, and f. a conversion and synchronization circuit means controlled by the signals emitted by said coder means and computer means and by the angular movement sensor means, respectively, for converting said signals into analogous form in accordance with prefixed increments of the signal emitted by said angular movement sensor and for furnishing corresponding analogous signals proportional to said signals for the ordinate input and abscissa input of said X-Y recorder means; said coder means comprising an interpolation unit serving to convert the pulse signal emitted by the angular movement sensor into a single digital figure representing the increments of the stroke, an up/down counter controlled by a ''''clov'''' signal at the cadence of the pulses of the displacement sensor means, a complementer means of the figure representing increments of the stroke and control circuits controlled by the figure of the increment of the stroke and by the complemented figure of the increment of the stroke, for generating a UDC control signal in the sense of calculating for a counter means, and at the same time, in the sense of further developing said single figure of the stroke, the content of the counter means constituting the digital signal of the stroke.

Claim 6

An apparatus for determining the course of stroke, speed, and acceleration on a profile of a plane, rotating cam means, comprising in combination: a. a displacement sensor means cooperating with the cam means for emitting a pulse train, proportional in number to the stroke of the cam means, upon rotation of said cam means, b. a coder means controlled by said pulse train emitted by said displacement sensor means for furnishing a digital signal of the stroke of the cam means, c. a computer means controlled by the digital signal of the stroke for calculating the first and second derivative of said signal and for furnishing digital signals of the stroke, speed, and acceleration of the cam means which are variable in time, d. an angular movement sensor means cooperating with said cam means for emitting a digital signal of angular displacement of said cam means upon rotation of said cam means, e. an X-Y recorder means with an ordinate recording input and an abscissa recording input capable of being controlled by respective analogous signals, and f. a conversion and synchronization circuit means controlled by the signals emitted by said coder means and computer means and by the angular movement sensor means, respectively, for converting said signals into analogous form in accordance with prefixed increments of the signal emitted by said angular movement sensor and for furnishing corresponding analogous signals proportional to said signals for the ordinate input and abscissa input of said X-Y recorder means; said computer means comprising: a. a transit memory to be enabled so as to be adjusted to the instant digital value of the signal of the stroke, b. an up/down counter for the stroke serving to count the pulses of an applied clov signal in the sense determined by a UDH control signal of the counting sense, c. a digital comparator serving to confront the respective contents of said transit memory and of said up/down counter for the stroke and to furnish a PIU signal on a first line or a MENO signal on a second line, depending on the fact whether the content of said transit memory is greater or smaller than the content of the stroke counter, d. a speed counter serving to count the pulses of said clov signal and capable of being adjusted to zero by an applied cancellation signal, e. an up/down counter for the acceleration which serves to count the pulses of said clov signal in the sense determined by a UDA control signal of the counting sense and which is connected to the output of the speed counter so as to be adjusted to the instant content of said counter upon application of a transmission signal, f. a divider circuit controlled by the pulse train emitted by said angular movement sensor for emitting a step signal upon completion of rotations of said cam means of preselected angular distance, and g. a control circuit for said computer means started by said step signal so as to emit an enabling signal for said transit memory, the cancellation signal for said speed counter, the transmission signal for said acceleration counter, and the clov pulses, and to further emit said UDH signal to cause said stroke counter to count in increasing sense if said PIU signal is present and in decreasing sense if said MENO signal is present, and to emit said UDA signal to cause said acceleration counter to count in increasing sense if the preceding content of said speed counter was negative and in decreasing sense if said content was positive.

Claim 7

An apparatus for determining the course of stroke, speed, and acceleration on a profile of a plane, rotating cam means, comprising in combination: a. a displacement sensor means cooperating with the cam means for emitting a pulse train, proportional in number to the stroke of the cam means, upon rotation of said cam means, b. a coder means controlled by said pulse train emitted by said displacement sensor means for furnishing a digital signal of the stroke of the cam means, c. a computer means controlled by the digital signal of the stroke for calculating the first and second derivative of said signal and for furnishing digital signals of the stroke, speed, and acceleration of the cam means which are variable in time, d. an angular movement sensor means cooperating with said cam means for emitting a digital signal of angular displacement of said cam means upon rotation of said cam means, e. an X-Y recorder means with an ordinate recording input and an abscissa recording input capable of being controlled by respective analogous signals, and f. a conversion and synchronization circuit means controlled by the signals emitted by said coder means and computer means and by the angular movement sensor means, respectively, for converting said signals into analogous form in accordance with prefixed increments of the signal emitted by said angular movement sensor and for furnishing corresponding analogous signals proportional to said signals for the ordinate input and abscissa input of said X-Y recorder means; said computer means comprising: a. a transit memory to be enabled so as to be adjusted to the instant digital value of the signal of the stroke, b. an up/down counter for the stroke serving to count the pulses of an applied clov signal in the sense determined by a UDH control signal of the counting sense, c. a digital comparator serving to confront the respective contents of said transit memory and of said up/down counter for the stroke and to furnish a PIU signal on a first line or a MENO signal on a second line, depending on the fact whether the content of said transit memory is greater or smaller than the content of the stroke counter, d. a speed counter serving to count the pulses of said clov signal and capable of being adjusted to zero by an applied cancellation signal, e. an up/down counter for the acceleration which serves to count the pulses of said clov signal in the sense determined by a UDA control signal of the counting sense and which is connected to the output of the speed counter so as to be adjusted to the instant content of said counter upon application of a transmission signal, f. a divider circuit controlled by the pulse train emitted by said angular movement sensor for emitting a step signal upon completion of rotations of said cam means of preselected angular distance, and g. a control circuit for said computer means started by said step signal so as to emit an enabling signal for said transit memory, the cancellation signal for said speed counter, the transmission signal for said acceleration counter, and the clov pulses, and to further emit said UDH signal to cause said stroke counter to count in increasing sense if said PIU signal is present and in decreasing sense if said MENO signal is present, and to emit said UDA signal to cause said acceleration counter to count in increasing sense if the preceding content of said speed counter was negative and in decreasing sense if said content was positive.