कला
सुन्दरता र कल्याण
हस्तकला
संस्कृति र इतिहास
मनोरञ्जन
वातावरण
खाना र पेय
रिभर्स इन्जिनियरिङ
विज्ञान
खेलकुद
प्रविधि
पहिर्न मिल्ने
Strain-Gauge Load Cell with Floating Piston: Ruge, 1949
Arthur C. Ruge of Cambridge, Massachusetts, one of the two inventors of the bonded wire strain gauge, patented this load weighing cell in 1949, US 2,472,047 (filed 1946). Tanks, bins and scales rest on such cells so the weight of their contents can be read at any time. A floating piston, held in a heavy shell by two diaphragms, passes the load straight down onto a column carrying bonded strain gauges, so tilted, off-centre and twisting loads barely affect the reading. The gauges' change of resistance can be read on a Wheatstone bridge.
उन्नत
Workshop process
निर्देशनहरू
1
1
Base and shell
Base and shell
Weld a rigid, preferably cylindrical shell to a relatively heavy base, or secure it some other way.
यस चरणका सामग्री:
लोड सेलको आधार र बेलनाकार खोल1 टुक्राचाहिने औजार:
आर्क वेल्डिङ मेसिन2
2
Load column and gauges
Load column and gauges
Screw the lower end of the load-sensitive column rigidly to the base; round its upper end to a half-sphere. Bond wire strain gauges to its surface at several points around it, so bending cancels out, and mount gauges of the same type crosswise for temperature compensation. The column may be round, but square, solid or hollow, makes the gauges easier to apply. Its capacity is set by its cross-section and the stiffness of its material.
यस चरणका सामग्री:
भार-संवेदनशील स्तम्भ1 टुक्रा
टाँसिएको तार स्ट्रेन गेज1 सेटचाहिने औजार:
स्क्रुड्राइभर सेट3
3
Floating piston
Floating piston
Bore the piston so the column reaches up inside it and its rounded end bears on the end of the bore. Centre the piston in the shell with two annular diaphragms, upper and lower, welded or brazed to piston and shell: widely spaced, they let it move freely up and down but resist side loads and off-centre loads.
यस चरणका सामग्री:
तैरने लोड पिस्टन1 टुक्रा
वलयाकार गाइड डायाफ्राम2 टुक्राचाहिने औजार:
धातुको खरादआर्क वेल्डिङ मेसिन4
4
Overload ring and leads
Overload ring and leads
Set a safety ring under the piston with a small clearance: past a safe load, the piston lands on it and the excess goes straight to the base. Bring the gauge leads down through a hole in the ring and out through the lower diaphragm to an external cable. The gauges may be wired as a Wheatstone bridge. The cell can be sealed all round by brazing, or potted.
यस चरणका सामग्री:
अतिभार सुरक्षा रिङ1 टुक्रा
बहुचालक केबल1 टुक्रा
सोल्डर तार1 as requiredचाहिने औजार:
बिजुली सोल्डरिङ आइरन
तारको बोक्रा उप्काउने औजार5
5
Zero check
Zero check
To read the zero without moving the tank, seat a fixed ball race on top of the shell and a turning race above it, with balls between on a slightly inclined cam surface and a second row of balls under the loaded surface. Turning the upper race with a bar or spanner lifts the load a few thousandths of an inch off the piston; read the bridge, then turn it back.
यस चरणका सामग्री:
क्याम बल रेस जोडी1 टुक्रा
फलामका बल बियरिङ1 सेटचाहिने औजार:
मिलाउन मिल्ने पानासामग्री
10- 1 टुक्राप्लेसहोल्डर
- 1 टुक्राप्लेसहोल्डर
- प्लेसहोल्डर
- 1 टुक्राप्लेसहोल्डर
- 2 टुक्राप्लेसहोल्डर
- 1 टुक्राप्लेसहोल्डर
- 1 टुक्राप्लेसहोल्डर
- 1 as requiredप्लेसहोल्डर
- 1 टुक्राप्लेसहोल्डर
- 1 सेटप्लेसहोल्डर
आवश्यक उपकरणहरू
6- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
यो खाकाले बनाउँछ
सम्बन्धित ब्लुप्रिन्ट
यी ब्लुप्रिन्टहरूले ज्ञान साझा गर्छन् — प्रविधि, सामग्री वा सिद्धान्त
CC0 सार्वजनिक डोमेन
यो ब्लुप्रिन्ट CC0 अन्तर्गत जारी गरिएको छ। तपाईं अनुमति नसोधी प्रतिलिपि, परिमार्जन, वितरण र प्रयोग गर्न सक्नुहुन्छ।
ब्लुप्रिन्ट मार्फत उत्पादनहरू किनेर सिर्जनाकर्तालाई सहयोग गर्नुहोस् सिर्जनाकर्ता कमिसन विक्रेताले तोकेको, वा यो ब्लुप्रिन्टको नयाँ संस्करण बनाउनुहोस् र आम्दानी बाँड्न आफ्नो ब्लुप्रिन्टमा जडानको रूपमा समावेश गर्नुहोस्।