1. A measurement assembly for reading out in parallel SPR sensors that in form of a plurality of waveguides (13) form a waveguide array (10), in which the distances between the individual waveguides (13) correspond to a regular matrix and each individual waveguide (13) has an SPR-compatible sensor area (16), which may be associated with a respective sample, characterized in that a wavelength-selective assembly (5) and an optical imaging system (L2, L3) are arranged downstream of a light source (3), said optical imaging system (L2, L3) being configured so that it ensures a parallel illumination of the light entrance sides of said waveguides (13) at a first wavelength, and the light emerging from the individual light waveguides (13) may simultaneously be imaged onto a CCD chip (20) via an optical system (L4; L6, L7) in such a way that the light emerging from each individual light waveguide (13) is respectively detectable by several adjacent CCD pixels of the CCD chip (20), and from these pixel areas a respective light intensity value is calculable by means of image processing software, and, after data storage of an intensity value, a set wave length and coordinate in the waveguide array (10), an adjustment of the wavelength-selective assembly (5) to a second, arbitrarily providable, further light wavelength is performable by means of a computer (30) via a control line (31).
2. The measurement assembly as set forth in claim 1, characterized in that a polarisator (6) is arranged downstream of said wavelength-selective assembly (5).
3. The measurement assembly as set forth in claim 1, characterized in that said waveguides (13) are configured comb-shaped and their matrix is adapted to the well arrangement of a microtiter plate (60), at least the bottom portion (62) of said wells being configured optically transparent so that light from said waveguide array (10) incident in said wells (61) is detected.
4. The measurement assembly as set forth in claim 1 or 3, characterized in that dispersing means (9) are assigned to the light exit side of said waveguide array (10).
5. The measurement assembly as set forth in any of the claims 1, 3 or 4, characterized in that masking andor absorption means are assigned to the light entrance side of said waveguide array (10).
6. The measurement assembly as set forth in claim 5, characterized in that masking means in the form of a perforated mask (8) are assigned to said light entrance side of said waveguide array (10).
7. The measurement assembly as set forth in claim 3 or 5, characterized in that said masking andor absorption means are assigned to ensure that the light enters only the bottom portion (62) of said wells of a microtiter plate (60) in which the SPR-compatible sensors are arranged.
8. The measurement assembly as set forth in claim 3 or 5, characterized in that said absorption means assigned to said light entrance side of said waveguide array (10) take the form of a microtiter plate whose well sidewalls are fabricated of a light-absorbing material.
9. The measurement assembly as set forth in claim 5, characterized in that said absorption means assigned to said light entrance side of said waveguide array (10) take the form of a light-absorbing cast separating said waveguides (13) from each other.
10. The measurement assembly as set forth in claim 1, characterized in that said wavelength-selective assembly (5) is formed by an incrementally variable monochromator and said optical imaging system (L2, L3) is followed by a folding mirror (7) ensuring parallel illumination of said light entrance side of said waveguides (13) at a suitable angle.
11. The measurement assembly as set forth in claim 1, characterized in that said wavelength-selective assembly (5) is formed by an incrementally variable monochromator and said optical imaging system (L2, L3) ensures parallel perpendicular illumination of said light entrance side of said waveguide array (10), each optical waveguide (13) being provided upstream with a lens (L5) ensuring divergent illumination of said SPR-compatible layers (16) of said waveguides (13).
12. The measurement assembly as set forth in claim 10, characterized in that said light exit side end of said waveguide array (10) is additionally provided directly downstream with a further folding mirror (71) ensuring imaging of said waveguide array (10) on a CCD chip (20) inclined to the optical axis.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A construction machine, having a frame as a support structure which is provided with a working mechanism and a counterweight in front and rear sides thereof, respectively, a cab which is built on a front side of said frame and forms an operator’s room, and a machine room which is built on said frame at a position between said cab and said counterweight to accommodate an engine,
said machine room being built of a front support member erected on said frame on the rear side of said cab, a rear support member erected on said frame at a position on the rear side of said front support member, an engine cover swingably hinged on said front support member and extended transversely between said cab and counterweight to cover said engine from above, a connecting support member connecting said front support member with said rear support member, and a housing door extended in forward and rearward direction between said counterweight and cab and openably fitted between said front and rear support members, characterized in that:
said housing door is located continuously at one lateral side of said engine cover;
said connecting support member is located under said engine cover and inward of said housing door; and
said connecting support member is formed with a grip portion used as a hand-rail while said housing door is in an open state, permitting a servicing worker to hold on to said grip portion no matter whether said engine cover is in an open or closed position.
2. A construction machine as defined in claim 1, wherein said connecting support member is fixedly attached to said front and rear support members at fore and rear ends, respectively, and formed with a longitudinally extending grip portion in an intermediate section between said fore and rear ends.
3. A construction machine as defined in claim 1, wherein said connecting support member is formed by bending a hollow metal pipe into a suitable shape.
4. A construction machine as defined in claim 1, wherein an air cleaner is attached to said engine to supply clean air to said engine, and a heat exchanger is mounted on said frame at a position between said engine and said housing door, said rear support member being adapted to support said air cleaner, and said connecting support member being located transversely between said heat exchanger and said housing door.
5. A construction machine as defined in claim 4, wherein an equipment room is defined beneath said connecting support member by said front support member, rear support member, heat exchanger and housing door to accommodate said air cleaner and other onboard equipments.
6. A construction machine as defined in claim 1, wherein said connecting support member is formed with a horizontal grip portion extended horizontally rearward from said front support member and held in abutting engagement with the lower side of said engine cover when the latter is closed, and an inclined grip portion extended downward toward said rear support member from a rear end of said horizontal grip portion in such a way as to leave an ample space under said engine cover to let a servicing worker grab said inclined grip portion readily even when said engine cover is closed.