摘要:
The invention relates to a measurement device for detecting the hydrocarbon content in gases, comprising: devices for subdividing an original gas stream into a first measuring gas steam and a second measuring gas stream; a first reference gas unit for producing a first reference gas stream from a substream of the first measuring gas stream; a second reference gas unit for generating a second reference gas stream from a substream of the second measuring gas stream; a first sensor for determining the content of hydrocarbon in the first measuring gas stream and generating a corresponding first measurement result; a second sensor for determining the content of hydrocarbon in the second measuring gas stream and for generating a corresponding second measurement result; and an evaluation unit for evaluating the measurement results of the two sensors. The first sensor is alternately fed the first measuring gas stream or the reference gas stream prepared by the first reference unit, and the second sensor is alternately fed the second measuring gas stream or the second reference gas stream prepared by the second reference gas unit. Because the two cycles are time-offset, a measurement value is continuously available. The invention further relates to a method for performing continuous measurements for detecting the hydrocarbon content in gases. According to the invention, the evaluation unit can perform appropriate computational operations and routines in order to detect the cause of the deviation. Error analysis program capable of checking all components in the gas path independently. Flushing the sensors with reference gas can also be initiated independently, in regular cycles or due to a deviating or conspicuous measurement result from the measurement device. Because the valves in the gas path are individually switchable, it is also possible to simultaneously switch reference air and measuring air to the sensor and to dilute the measuring gas.
摘要:
The invention relates to a condensate drain for pressurized gas systems, having a condensate collecting chamber (22), which can be connected to the pressurized gas system via a condensate inflow (23) and has a condensate outflow (25) that can be closed by means of an electrically operable valve (24), at least one electronic filling level gauge (26), with which the condensate filling level in the condensate collecting chamber (22) can be detected, and an electronic control unit (27), with which the condensate filling level detected by means of the filling level gauge (26) can be evaluated and the valve (24) can be operated. The condensate drain has at least one battery (33), which provides the power supply for at least the control unit (27), the filling level gauge (26) and the valve (24).
摘要:
The invention relates to a drive device (20) for entrance and exit devices for public transportation vehicles, comprising a drive unit (22) that is arranged in and drives a rotary column (24) rotating about a rotational axis Z-Z during opening and closing operations, said column opening and closing the entrance and exit device. The drive unit (22) is held on the vehicle via a retaining component (40). The retaining component (40) acts as counter bearing for a torque of the drive unit (22). Between the drive unit (22) and the retaining component (40), a coupling device (72) is arranged, which enables a rotation of the drive unit (22) about the rotational axis Z-Z when a threshold value of the torque acting upon the drive unit is exceeded. Between the coupling device (72) and the retaining component (40), a bearing is provided, which enables a tumbling motion of the rotary column (24) with the coupling device (72) and prevents a rotation about the rotational axis Z-Z.
摘要:
A hoof boot for use on a horse that provides efficient locomotion through loose soils is disclosed. The hoof boot includes lugs of a particular shape and angle on the sole of the boot that displace the loose soil providing efficient movement for the horse through loose soils.
摘要:
A storage bag is so designed as to enable accurate confirmation of an amount of a drug left therein. A drug storage container (1) includes a storage bag (2) storing a drug therein, a discharge unit (3), a sealing member and a measurement unit provided with a scale (7) for measuring a residual liquid amount. The discharge unit (3) is attached to the storage bag (2) so as to discharge a drug (M). The sealing member seals an opening of the discharge unit (3). The measurement unit is formed of a tubular member having such a hardness as not to undergo deformation depending on the variation in amount of the drug (M).
摘要:
Provided is a sapphire ingot grower. The sapphire ingot grower includes a chamber, a crucible disposed in the chamber to contain alumina melt, a heater disposed outside the crucible to heat the crucible, and a heat supply unit disposed over an ingot growing within the crucible to apply heat to the ingot.
摘要:
A microfocus X-ray tube (11) for a high-resolution X-ray apparatus comprises a housing (34), an electron beam source (15) for producing an electron beam (14) and a focusing lens (22) for focusing the electron beam (24) onto a target (23). The X-ray tube (11) has an essentially rotationally symmetrical, annular cooling chamber (30) that is designed such that a liquid cooling medium can flow through.