183 results about "Performance measuring device" patented technology

A device for measuring elastic properties, comprising a long bar-like probe base (42) and probes (50a, 50c) fitted to the probe base (42) driven as to be pressed against and withdrawn from a living body tissue. The probes are so formed that generally semi-spherical contact balls (58) having stress detection bases (56) are fitted to the ends of leaf strings (52) and stress detection sensors (60) are disposed on the stress detection bases (56). Light-receiving elements are fitted to the opposite side of the leaf displacement sensors (62a, 62b). The stress sensors (60) and displacement sensors (62a, 62b) are connected to the device body through signal lines (92, 94), respectively. The profile of the displacement of the tissue is calculated and displayed in a manner indicating correlation with stress.

Footwear for an individual such as a cyclist is provided with a performance measurement device for measuring the individual's performance. A first exemplary article of such footwear includes a shoe in combination with an optional means for substantially immobilizing the shoe to a pedal of a cycle, e.g., a cleat, and the performance measurement device. A second exemplary article of such footwear is a sock in combination with the measurement device. Typically, the measurement device is embedded or located within the footwear and is not mounted to an exterior surface, e.g., the bottom sole surface, of the footwear.

A performance measuring device of a surface light source lamp comprises a horizontal baseboard, a support and a testing table. The support comprises a vertical support and a horizontal support, the vertical support is vertically fixed on the horizontal baseboard, the horizontal support is horizontally arranged on the vertical support and is capable of being in parallel translation vertically, and the horizontal support is provided with a lamp fixing device. The testing table comprises a horizontal disc, a probe and a detector, the horizontal disc is arranged on the horizontal baseboard and capable of rotating for 360 degrees, the horizontal disc is provided with a linear guiderail, the probe is installed on the linear guiderail and capable of moving along the linear guiderail, and the detector is arranged on the horizontal baseboard and connected with the probe. The performance measuring device is simple in structure, eliminates uncertainty in measuring, leads measuring to be standard, and can be used in measuring of parameters including light intensity, spectrum, color temperature, surface temperature and color rendering index of various surface light source lamps including light-emitting diode surface light source lamps, organic light-emitting diode surface light source lamps and electroluminescence surface light source lamps.

The invention relates to a detection device and the method for the thermoelectric electric power generation performance. The detection device is made up of the thermal resource, the cooling end, the DC, the standard load resistance, the multicenter data collector, the computer ,the thermocouple and the vacuum pump. The method is to install the two thermoelectric power generation devices between the thermal resource and the cooling end at the same time, the output of which is connected with the standard load resistance, so it can get the output power by changing the standard load resistance which contrasts to the input power to get the energy conversion efficiency. The invention can avoid the heat loss of the input measurement system by using the double detection symmetrical thermal resource, comparing to the present method, the device has the simple structure and high efficiency, and also it can detect the energy conversion efficiency directly.

Disclosed is an apparatus used for measuring medium insulating property in the gas-liquid phase flow state, a heating device (20) is positioned at the bottom part of an airtight container (10), and a condensing device (90) is positioned at the upper part of the airtight container (10). The condensing device (90) is provided with a water inlet (100) and a water outlet (110) penetrating through the top plate of the airtight container (10). A high voltage electrode (50) and a low voltage electrode (60) are positioned at the middle part of the airtight container (10), and penetrate into the airtight container (10) from two relative directions; and a liquid medium (40) under test is added into the airtight container (10), the heating device (20) heats the liquid medium (40) to boil in the two-phase flow state, the steam generated by the liquid medium (40) after boiling evaporation is cooled by the condensing device (90) to turn into liquid and flow back to the bottom part of the airtight container (10). The apparatus can be used for measuring insulating properties of various liquid media and solid insulation materials in the liquid medium environment under the gas-liquid phase flow state.

This invention provides a test device of material sound-proof property, which comprises signal generator, sound-proof box, and sound degree device, wherein, the signal generator is connected with the loudhailer in the sound proof box with one side fixed with the sound proof board of the test material. The sound degree device is fixed relative to the sound proof board. The test material of the invention is convenient and is suitable to the test of the polymer materials and glass and rock.

The invention belongs to a performance measuring device for a machine tool component, and particularly relates to a performance test bench for an electric spindle. The performance test bench comprises an installation platform, wherein an elevating platform and a cross-shaped platform are fixed on the installation platform; a loading electric spindle is arranged on a V-shaped installation frame ofthe elevating platform; a tested electric spindle is arranged on a V-shaped installation frame of the cross-shaped platform; the two ends of an elastic shaft are connected with the output ends of theloading electric spindle and the tested electric spindle; a plurality of reflecting stripes of the same shape are uniformly sprayed at symmetrical positions on the outer circumferential surfaces of the two ends of the elastic shaft with a reflecting material; an optical fiber focusing lens is arranged on a focusing lens installation frame on one side of the elastic shaft; the loading electric spindle is connected with an energy feedback device; the tested electric spindle is connected with a variable-frequency device; and the optical fiber focusing lens is connected with a measuring circuit through a photoelectric switch. The performance test bench has the characteristics of simple structure, convenience for operating, accuracy in measurement and capability of realizing high rotating speed measurement through a photoelectric detection technology.

The invention relates to a thermoelectric performance measuring device and a measuring method of a thermoelectric refrigeration chip. The thermoelectric performance measuring device comprises a water cooling radiator, a constant temperature bath, a direct current voltage stabilizing and current stabilizing power supply, a thermoelectric refrigeration chip, platinum resistors, a data collector, a computer, a multichannel electric parameter measuring apparatus, a vacuum pump and a vacuum cover, wherein the hot end face of the thermoelectric refrigeration chip is adhered on the water cooling radiator, the water cooling radiator and the constant temperature bath are mutually connected to perform cold-heat exchange, the direct current voltage stabilizing and current stabilizing power supply is connected with the two electrodes of the thermoelectric refrigeration chip, the two platinum resistors are respectively adhered on the cold end face and the hot end face of the thermoelectric refrigeration chip, the platinum resistors are used for collecting temperature values and sending the temperature values to the data collector, and the data collector collects data and sends the data to the computer; the multichannel electric parameter measuring apparatus respectively collects the working voltage, the working current and the thermal electromotive force of the thermoelectric refrigeration chip and sends the data to the computer; and the water cooling radiator and the thermoelectric refrigeration chip are arranged in the vacuum cover, and the vacuum pump is used for pumping the air in the vacuum cover. The device is simple, the cost is low, the testing process is simple and the measuring precision is high.

The invention discloses a measuring device and method for a vacuum sealing performance. The device comprises a first standard leaking hole (1), a second standard leaking hole (2), a third standard leaking hole (3), a getter pump (4), a sealed container (5), an angle valve (6), a current-limiting holes (7), a molecular pump group (8), a first dry mechanical pump (9), a gate valve (10), a vacuum gauge (11), a quadrupole mass spectrometer (12), and a measuring chamber (13). In addition, according to the method, an overall leakage rate of the sealed container (5) is measured by using a dynamic method or a static accumulation method and thus a sealing performance of the sealed container is represented; the dynamic method is suitable for large-leakage-rate measurement and the measuring range is associated with a minimum detectable signal and orifice conductance of the quadrupole mass spectrometer (12); and the static accumulation method is suitable for low-helium-leakage-rate measurement and the helium leakage rate of the sealed container (5) is calculated based on measurement on helium partial pressures accumulated in the room by the quadrupole mass spectrometer.

The invention belongs to the field of structural ceramic sample dielectric performance measurement technology, and relates to a structural ceramic sample dielectric performance measuring device. A microwave sintering device is internally provided with a temperature acquisition device and a sample. Two ends of the sample are provided with parallel plate capacitors. The temperature acquisition device and the sample do not contact each other. Lead wires which are introduced from the sample and the temperature acquisition device are respectively connected with a dielectric performance testing device and a temperature measuring device. A data processing system is connected with the dielectric performance testing device and the temperature measuring device. The dielectric performance testing device and the temperature measuring device respectively transmit obtained data information to the data processing system. The data processing system processes data which are transmitted from the temperature measuring device and the dielectric performance testing device, thereby obtaining the dielectric constant and the dielectric loss of the sample at different frequencies and different temperatures. The structural ceramic sample dielectric performance measuring device has advantages of simple structure, convenient operation and scientific principle. The changing rule of the structural ceramic sample dielectric performance along with the temperature can be obtained in real time.

The invention relates to an activated sludge settling concentration comprehensive performance measuring device and measuring method, and is characterized in that the measuring device comprises a settling column; the settling column comprises an upper-layer chamber and a lower-layer chamber; a drain pipe is arranged on the bottom of the upper-layer chamber; a water suction pump is arranged in the lower-layer chamber; an inlet of the water suction pump is connected with a sampling pipe penetrating through the side wall of the lower-layer chamber; an outlet of the water suction pump is connected with a pipeline extending into the upper-layer chamber; an aerator is arranged in the lower-layer chamber and is connected with an aeration head through a gas pipe extending into the upper-layer chamber; an ultrasonic signal transmitting sensor and an ultrasonic signal receiving sensor are arranged on the top of the upper-layer chamber; an infrared light emission sensor and an infrared light detector are arranged at the middle part of the upper-layer chamber.

The invention discloses a contracting-expanding type earth-rock hybrid normal position mechanical property measuring device, which comprises a feeler lever, a tubular sealing cavity, a base, an expanding lever, an expanding board, a rigid hollow lever, a clamper and the like. The feeler lever has preset length, the tubular sealing cavity can expand along the axial direction, the base is sleeved at the other end of the sealing cavity, one end of the expanding lever is installed on the base in rotating mode, the expanding board is installed on the expanding lever, the rigid hollow lever is sleeved in the feeler lever and the sealing cavity, a nozzle is arranged on a section of the hollow lever arranged in the sealing cavity, and the clamper is arranged at the other end of the hollow lever extending out of the base. The contracting-expanding type earth-rock hybrid normal position mechanical property measuring device can finish expanding in holes and earth-rock breaking, forms a complete breaking surface, adopts high-pressure air or high-pressure water injecting, leads the sealing cavity to expand for supplying lateral pressure, damages normal position earth-rock hybrid through shearing in the process for raising the probe device, monitors and records data, and then changes testing depth so as to achieve testing of different-depth earth-rock normal position mechanical property parameters.

[Problem to be Solved] To provide a property measuring device for measuring a measurement object, which can highly reliably extract an electric signal serving as the measurement object from an electromagnetic field noise or the like generated by an acoustic wave generating source even if the acoustic wave is a continuous wave, while a high spatial resolution is maintained, by using an acoustic wave as a properly measuring means for measuring an object and method thereof.

[Means for Solving the Problem] A property measuring device 100 for measuring a measurement object of the present invention includes: an acoustic wave emitting portion 40 arranged away from a measurement object 90 and emitting an amplitude-modulated acoustic wave; a receiver 50 for receiving an electromagnetic field generated when the acoustic wave is emitted to the measurement object 90; and a measuring portion 60 for extracting at least one type of properties selected from a group consisting of an electric property, a magnetic property, an electromechanical property, and a magnetomechanical property of the measurement object 90, based on at least one measurement selected from a group consisting of measurements of a strength, a phase, and a frequency of the electromagnetic field.

The invention relates to a thermal property measurement device for a semiconductor luminescent device to measure junction temperature, thermoresistance and the like thermal property parameters of the semiconductor luminescent device, which can be matched with other tested components and comprises a light measurement device, a temperature control device, and an electric driving and measuring circuit electrically connected with the light measurement device and the temperature control device; wherein the light measurement device and the temperature control device are arranged up and down; and the electric driving and measuring circuit can be electrically connected with the tested components. The device has the remarkable progress that: 1. as the light measurement device and the temperature control device are arranged up and down, when the semiconductor luminescent device is picked and placed on the device, the opposite position of the light measurement device and the temperature control device can be adjusted, the operation is simple and convenient; 2. a photoelectric measuring instrument can accurately measure light quantity, radiation measurement and the like light parameters; 3. a radiator has reasonable structure, favorable convection environment during work and good radiation effect; 4. a positioning measurement device is arranged for measuring the opposite position of the light measurement device and the temperature control device, which can avoid abnormal operation occurrence.

The invention relates to the field of metallurgy and provides a temperature synchronizing system and method used for a metallurgic performance measuring device. The temperature synchronizing system comprises a temperature measuring system, a furnace temperature adjusting system and a central control module, the temperature measuring system comprises furnace temperature thermocouples and a material temperature thermocouple arranged at the center of an experiment sample in a furnace, the furnace temperature thermocouples are arranged on furnace walls of three heating sections respectively, the furnace temperature adjusting system comprises silicon controlled rectifiers arranged on resistance wires of the heating sections, and the central control module comprises a communication module, a material temperature control PID (proportion, integration and differentiation) algorithm module, a furnace temperature control PID algorithm module and a pulse heating PID control module. Heating processes of the three independent heating sections are unified by adopting an indirect control method and taking temperature increase speed of furnace temperature as a controlled object, so that influence on control accuracy due to difference in heating and cooling capability of each section in a conventional method is eliminated, inter-section temperature difference is reduced greatly, and uniformity in sample temperature is improved.

There are proposed an optical fiber property measuring device and an optical fiber property measuring method which can enhance spatial resolution more than before. In the present invention, in synchronization with frequency modulation applied to x-polarized light, intensity modulation is also applied to the x-polarized light by an intensity modulation means. This makes it possible to increase or decrease the intensity of the x-polarized light at a specific frequency, thereby allowing the effective length of a Brillouin dynamic grating formed by the x-polarized light to be adjusted. As a result, the shape of the reflection spectrum obtained when y-polarized light is reflecting by the Brillouin dynamic grating can also be adjusted optimally, which leads to enhancement of spatial resolution with the y-polarized light.

The invention relates to the technical field of soil infiltration performance measurement, and discloses a farmland plow pan soil infiltration performance measuring device and a method thereof. The device provided by the invention comprises a constant flow water supply device, an infiltration ring, a draining container and two flow sensors, wherein the constant flow water supply device is connected with the infiltration ring through a first water pipe; the infiltration ring is connected with the draining container through a second water pipe; the constant flow water supply device is disposed on one of the flow sensors; and the draining container is disposed on the other flow sensor. According to a water balance principle, the invention brings forward the farmland plow pan soil infiltration performance measuring method and its corresponding measuring device. The method and the device can be conveniently applied in field tests. In addition, the device provided by the invention is convenient to carry, is simple to operate, can be used to obtain data instantly, and automatically operates under the control of a computer, thus saving a lot of time, manpower and material resources.

The invention relates to a negative ion performance measuring device and method for negative ion textile. The negative ion performance measuring device for negative ion textile comprises a cover-shaped glass box body (01) and a box body base (02) arranged below the glass box body (01), a winding press roller (03), a transmission press roller (04) and a heating resistor (05) installed in the glassbox body (01) and located on a box body base, and a temperature sensor (032) and a pressure sensor (042) installed in a winding roller (031) of the winding press roller (03) and a transmission roller(041) of the transmission press roller (04) respectively. The device also comprises an external test controller (06), a negative ion tester (07), an air inlet fan (09) installed on an air inlet of theglass box body, an exhaust fan (11) installed on an exhaust port of the glass box body, and a hollow pipe (071) connecting the negative ion tester and the exhaust port of the glass box body. The testcontroller (06) is electrically connected with the heating resistor (05), motors used for driving the winding press roller (03) and the transmission press roller (04) to rotate, and the temperature sensor (032) and the pressure sensor (042). The negative ion performance of negative ion fiber and negative ion fabric can be accurately measured.