Queen's University at Kingston

Other

Roy A Young

Gerald E Loeb

David B Layzell

Stephen Hunt

Adrian N Dowling

Samuel S McKee

Kevin H Hood

The invention provides a hoof angle measuring device for use on horses. A base is configured to be held against the bottom of a horse hoof and a pivoting arm can then be aligned with the forward edge of the hoof to define the hoof angle. Without physical or electrical contact with the base or arm, an enclosed sensor detects relative angular position between the base and arm. Supporting circuitry also provided in an enclosure accepts signal voltage from the sensor and provides a protected digital display of the measured angle magnitude for the user.

Horse hoof angle measuring device

A method and apparatus for measuring differential and absolute concentrations of a selected gas, preferably oxygen, in two flowing gas streams is described. A reference gas and a sample gas in separate gas flow paths are passed at selected temperature, pressure and flow rate over a pair of gas sensors, connected in series with their cathodes or anodes connected together, which produce output signals proportional to the differential selected gas concentration between the sensors and the absolute selected gas pressure in each sensor. The output signals may be amplified and recorded by any conventional means.

Differential gas analyzer

In monitoring systems for acquiring data about a subject, such as are used, for example, in the medical, scientific and engineering fields, determination of temporal relationships between data acquired from multiple monitoring devices is facilitated by means of an interface unit which interconnects the monitoring devices with tape recorders for storing the data and a computer for processing the data. The interface unit generates various timing and control signals including a time code signal. The interface unit supplies the time code signal to the recording devices for recording simultaneously with the data. The time code signal may be a linear time code (LTC) derived from a video sync signal generated by the interface unit for synchronizing a camera. A sampling clock signal for controlling digitizing of the analog data acquired by the system is derived from the time code signal. The time code signal may comprise a common temporal reference signal, for example the SMPTE used with NTSC format video or its European equivalent EBU used with the format. The video synchronization signal may itself be synchronized to and external timing signal, perhaps derived from one of the monitoring devices.

Monitoring system and interface apparatus therefor

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Odessa, Canada

Roy A Young