A monitor apparatus including a monitor and a base to support the monitor. The monitor apparatus further includes a first link provided between the monitor and the base; a second link provided between the monitor and the base adjacent to the first link; a base bracket combined to the base having first and second lower supporting parts to rotatably support lower parts of the first and second links, respectively; a connecting bracket rotatably combined to the monitor having first and second upper ...

Monitor apparatus for monitoring the operation of remote control apparatus for linear or rotary actuators. Signals are derived representative of input commands to the control apparatus, of servo directional output control signals from the control apparatus and representative of actuator response. Logic circuits are provided to effectively compare these signals and give an indication of any error. The arrangement may be such that the monitor apparatus is functioning in a monitoring capacity even ...

A monitor stand for supporting a computer monitor includes a base having a base portion and a support arm extending upward from the base portion, and a support panel attached to the support arm. The support panel may comprise a curved panel having a curved front surface, and the support panel may support a computer monitor at the curved front surface. The monitor stand may include a bracket assembly for attaching the computer monitor to the support panel, such as via a tongue and groove configur...

An apparatus for monitoring whether the combustion system of a gas turbine is working properly includes an annular array of temperature sensors disposed in the gas turbine to monitor the temperature of the hot gas stream at a plurality of spaced positions and a temperature sensor disposed in the gas turbine to monitor the temperature of the compressor discharge flow, a digital computer, a circuit to input signals indicative of the sensed temperatures of a selected sensor to the digital computer,...

A fibrinogen monitor for use in monitoring the concentration of iodinated fibrinogen distribution in the calf and thigh veins of bed-restricted patients. The fibrinogen monitor is an improved scintillation detector which a hospital staff member can manipulate using one hand to detect and record scintillation events at measured points along the leg of a patient while leaving the other hand free to aid in positioning the leg. The output of the monitor is digitized and provided both as a visual dis...

A device for monitoring the electrical arc voltage and arc current being supplied by a welding apparatus. The device includes means, as for instance an electronic circuit, for integrating each electrical quantity being utilized over a selectively variable time period to provide a running weighted average indication of said quantity. The device also includes a means, as for instance an electronic circuit, to provide a memory so that a welder can measure his own parameters.

A power monitor including a high power shunt connected in series with an electrical load to develop a signal proportional to current which is then modulated. A second signal proportional to the voltage across the load is developed by a voltage divider network. The two signals are applied as inputs to an electronic multiplier which produces a modulated output signal which is proportional to the power being dissipated by the load. The ouput signal from the multiplier is fed through an isolation tr...

A system for indicating radiation from a radioactive fluid such as a gas wherein simultaneous indications of the activity concentration of radioactivity of the gas, the radiation dose rate and average energy of the radiation are provided.

A gas monitor comprising means for detecting changes in electron flow between two electrodes caused by absorption of the electrons by an electron capture gas flowing between the electrodes. A carrier gas is supplied to the detecting means at a predetermined velocity. A sample of the gas to be measured is added to the carrier gas by a valve means at a predetermined time which gas sample contains a trace of a first type of electron capture gas. The carrier gas together with any gas sample flows th...

A motion monitor particularly useful for monitoring infant respiration, and comprising an oscillator driving an ultra-sonic wave generator, a receiver for ultra-sonic echoes, a phase detector for detecting phase shift between the outputs of th detector and oscillator and means for recovering the respiration envelope from the output of the phase detector. In a preferred embodiment the system includes a phaselocked loop using selected very low frequencies in the output of the phase detector to con...